| Variable | Value |
|---|
Edit count of the user (user_editcount) | 879 |
Name of the user account (user_name) | 'Brendlefly62' |
Age of the user account (user_age) | 255930526 |
Page ID (page_id) | 370424 |
Page namespace (page_namespace) | 2 |
Page title (without namespace) (page_title) | 'Brendlefly62/Radxa x4 N100 sbc with RP2040' |
Full page title (page_prefixedtitle) | 'User:Brendlefly62/Radxa x4 N100 sbc with RP2040' |
Action (action) | 'edit' |
Edit summary/reason (summary) | '/* resources */ ' |
Old content model (old_content_model) | 'wikitext' |
New content model (new_content_model) | 'wikitext' |
Old page wikitext, before the edit (old_wikitext) | 'Construction of this page began 5 March 2025 (Work in Progress)
The Radxa X4 is a small, low power (6 Watt) sbc with a form-factor very similar to raspberry pi 5, but it is based on a quad-core Intel N100 cpu supported by Ami UEFI bios and has a raspberry pi 2040 (pico) chip on-board, to provide control of the sbc's 40 GPIO pins.
{{tip|
* Since this is actually an x86_64 "motherboard", despite the tiny size, the install procedure is basically the same as for any other x86_64. Follow the [[Handbook:AMD64|Gentoo Handbook:AMD64]]. The layout and procedures documented below show how this installation was performed, taking advantage of the "joetoo" ecosystem available to support a wide variaety of sbcs. Mini-PCs excluded, this is the first x86_64 sbc in the joetoo umbrella sbc project.
}}
Overall status: up and running. see metric section below
[[File:X4 mounted 20250305.jpg|thumb|"Radxa X4 SBC with M.2 nvme main storage"|alt=|right|500x500px]]
== Hardware ==
X4 SBC, shwon in image to the right, mounted on cooler, with USB-C power (3A switched Raspberry Pi wall-wart PSU) and micro HDMI cable connected, and USB storage, USB keyboard/mouse dongle inserted. The device is actually shown inverted here, since the N100 cpu is mounted on the bottom of the sbc, and it is affixed to its cooler from "below", so the cooler can vent to open space above the device. For normal operation, the entire unit is turned over, to sit on 4 x rubber feet depicted in this photo. Note also visible in the picture are 128G NVMe M.2 stick, real-time clock battery, and wifi antennae. In this project, the nvme stick holds bootfs and rootfs partitions, with the luks-encrypted rootfs consisting of several lvm lvs unlocked and mounted via custom initramfs that resides with the kernel on the bootfs. The lunks encryption key can be provided by external usb storage device as shown here. Note also that the 40 x GPIO pins are controlled by an on-board Raspberry Pi RP2040 (pico).
=== Specifications ===
{| class="table table-condensed table-striped" style="width: 100%;"
! colspan="2" width="50%" | Make/model
! scope="col" width="50%" | Notes
|-
| Board
|Radxa X4（8 GB）
| https://radxa.com/products/x/x4/
|-
| RAM
| LPDDR5
- Maximum Frequency of 4800 MT/s
- 8GB (4GB, 12GB, 16GB options)
|
|-
| Firmware
| Ami uefi bios
|
|-
| Boot media
| 128GB nvme stick in M.2 slot for this application
| (use uefi bios [and in this project, grub] to boot )
|}
== SoC ==
{{Note|
The hardware is tested on kernel version 6.12.16-gentoo as described below
}}
{| class="table table-condensed table-striped" style="width: auto;"
! scope="col" width="20%" |Device
! scope="col" width="50%" |Make/model
! scope="col" width="10%" |Status
!kernel drivers
! scope="col" width="20%" |Notes
|-
|'''CPU'''
|Intel® Processor N100 (Alder Lake-N)
*Total Cores: 4
* Total Threads: 4
* Max Turbo Frequency: 3.40 GHz
* Cache: 6 MB Intel® Smart Cache
* Intel® Gaussian & Neural Accelerator 3.0
* Intel® Image Processing Unit 6.0
* Support for Intel® Virtualization Technology
| {{Yes|Works}}
|
|
|-
|'''GPU'''
|Intel® UHD Graphics
* Graphics Max Dynamic Frequency: 750 MHz
* DirectX Support: 12.1
* OpenGL Support: 4.6
* OpenCL Support: 3.0
| {{Partial|Testing ongoing}}
|
|
|-
|'''NPU'''
|Intel® Gaussian & Neural Accelerator 3.0
| {{Partial|Not tested}}
|
|
|-
! Memory
| colspan="1" | LPDDR5 8GB
| {{Yes|Works}}
|
|
|-
!Storage
| colspan="1" |M.2 nvme slot
| {{Yes|Works}}
|populated with 128GB nvme stick
|
|-
!Display
| colspan="1" |Dual Display Outputs via Two Micro HDMI up to 4Kp60
| {{Yes|HDMI Works}}
|
|
|-
!Audio
| colspan="1" |1x Headphone Jack with Microphone Input
| {{Partial|Not tested}}
|HDMI audio TBD
|
|-
!Ethernet
| colspan="1" |1x 2.5G Ethernet Port with PoE Support(Additional PoE HAT Required)
| {{Yes|Works}}
|igc
|
|-
! Wi-Fi, BT module
| colspan="1" |IEEE 802.11 a/b/g/n/ac/ax (WiFi 6) and Bluetooth 5.2 with BLE
| {{Yes|Works}}
|rtw89_8852be
|
|-
! USB
| colspan="1" |USB 3.0 , 2.0
* 1x USB 2.0 HOST Type A Port
* 3x USB 3.0 HOST Type A Ports
| {{Yes|Works}}
|hub
|
|-
!IO
| colspan="1" |Connectivity
* 1x RTC Battery Socket (comes with)
* 1x 2-Pin Fan Header
* 1x 2-Pin Power Input Header
* 40-Pin Color GPIO Header
* - Up to 2x SPI
* - Up to 2x UART
* - Up to 2x I2C
* - Up to 16x PWM
* - Up to 8x PIO(Programmable IO)
* - 2 x 5V DC power out
* - 2 x 3.3V power out
| {{Partial|Not yet tested}}
|Fan provided with cooler (sold separately) works
|}
=== Accessories ===
* Purchased separately: active cooler (heatsink/fan) which functions as case
* 3A Power supply.
* Keyboard, mouse, micro-HDMI cable
=== Board Layout ===
<gallery widths=500px heights=400px perrow=2 caption="Rock 5c" >
File:X4 cooler 20250305.jpg|Radxa X4 cooler with sbc mounted under
File:Radxa X4 Layout.png|Radxa X4 board layout ([https://radxa.com/products/x/x4/#techspec source])
</gallery>
== GCC optimization<ref>[[https://forums.gentoo.org/viewtopic-p-8808643.html?sid=0a3c76428ba15477342e2f9d0595aacd GCC optimization]]</ref> ==
{{FileBox|filename=/etc/portage/make.conf|title=X4 example|lang=bash|1=
COMMON_FLAGS=" -O2 -pipe"
COMMON_FLAGS=${COMMON_FLAGS}" -march=alderlake -mabm -mno-cldemote -mno-hreset -mno-kl -mno-pconfig -mno-sgx -mno-widekl -mshstk --param=l1-cache-line-size=64 --param=l1-cache-size=32 --param=l2-cache-size=6144"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
}}
{{Note|For a hardened system consider appending <code>-fstack-protector-all</code>}}
== Gentoo Installation Options and Procedures ==
=== Getting to Know the Board ===
The purpose of this guide is to document "from scratch" procedures for installing a pure gentoo system on this SBC. However the quicker way to get gentoo up and running is to install another distribution, and replace the root file system contents. See [[User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Getting to Know the Board|Getting to Know the Board]]
=== Bootloader Build and Installation ===
To build a U-Boot bootloader from sources, see [[User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Build-Install-U-Boot|Build-Install-U-Boot]]
=== Assemble a Working Gentoo System===
To assemble a working Gentoo system with minimal effort, using resources developed above, consult [[User:Brendlefly62/RRadxa x4 N100 sbc with RP2040|Assemble a Gentoo System]]
=== Kernel Build and Installation===
To build a gentoo linux kernel (including modules, device tree blobs, etc) from sources, see [[User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Build-Install-Kernel|Build-Install-Kernel]]
==Performance==
===Temp/Freq Monitoring===
{{Cmd|tempfreq_mon_rk3588s-rock-5c
}}
== Bootable Gentoo system images ==
To use pre-built bootable system images files, see [[User:Brendlefly62/Rockchip RK3588S Rock 5c/Bootable-System-Images|Bootable-System-Images]]
== resources ==
* [[https://radxa.com/products https://radxa.com/products]]
* [[https://radxa.com/products https://radxa.com/products]]
== References ==
{{reflist}}
[[Category:Orange Pi Boards]]' |
New page wikitext, after the edit (new_wikitext) | 'Construction of this page began 5 March 2025 (Work in Progress)
The Radxa X4 is a small, low power (6 Watt) sbc with a form-factor very similar to raspberry pi 5, but it is based on a quad-core Intel N100 cpu supported by Ami UEFI bios and has a raspberry pi 2040 (pico) chip on-board, to provide control of the sbc's 40 GPIO pins.
{{tip|
* Since this is actually an x86_64 "motherboard", despite the tiny size, the install procedure is basically the same as for any other x86_64. Follow the [[Handbook:AMD64|Gentoo Handbook:AMD64]]. The layout and procedures documented below show how this installation was performed, taking advantage of the "joetoo" ecosystem available to support a wide variaety of sbcs. Mini-PCs excluded, this is the first x86_64 sbc in the joetoo umbrella sbc project.
}}
Overall status: up and running. see metric section below
[[File:X4 mounted 20250305.jpg|thumb|"Radxa X4 SBC with M.2 nvme main storage"|alt=|right|500x500px]]
== Hardware ==
X4 SBC, shwon in image to the right, mounted on cooler, with USB-C power (3A switched Raspberry Pi wall-wart PSU) and micro HDMI cable connected, and USB storage, USB keyboard/mouse dongle inserted. The device is actually shown inverted here, since the N100 cpu is mounted on the bottom of the sbc, and it is affixed to its cooler from "below", so the cooler can vent to open space above the device. For normal operation, the entire unit is turned over, to sit on 4 x rubber feet depicted in this photo. Note also visible in the picture are 128G NVMe M.2 stick, real-time clock battery, and wifi antennae. In this project, the nvme stick holds bootfs and rootfs partitions, with the luks-encrypted rootfs consisting of several lvm lvs unlocked and mounted via custom initramfs that resides with the kernel on the bootfs. The lunks encryption key can be provided by external usb storage device as shown here. Note also that the 40 x GPIO pins are controlled by an on-board Raspberry Pi RP2040 (pico).
=== Specifications ===
{| class="table table-condensed table-striped" style="width: 100%;"
! colspan="2" width="50%" | Make/model
! scope="col" width="50%" | Notes
|-
| Board
|Radxa X4（8 GB）
| https://radxa.com/products/x/x4/
|-
| RAM
| LPDDR5
- Maximum Frequency of 4800 MT/s
- 8GB (4GB, 12GB, 16GB options)
|
|-
| Firmware
| Ami uefi bios
|
|-
| Boot media
| 128GB nvme stick in M.2 slot for this application
| (use uefi bios [and in this project, grub] to boot )
|}
== SoC ==
{{Note|
The hardware is tested on kernel version 6.12.16-gentoo as described below
}}
{| class="table table-condensed table-striped" style="width: auto;"
! scope="col" width="20%" |Device
! scope="col" width="50%" |Make/model
! scope="col" width="10%" |Status
!kernel drivers
! scope="col" width="20%" |Notes
|-
|'''CPU'''
|Intel® Processor N100 (Alder Lake-N)
*Total Cores: 4
* Total Threads: 4
* Max Turbo Frequency: 3.40 GHz
* Cache: 6 MB Intel® Smart Cache
* Intel® Gaussian & Neural Accelerator 3.0
* Intel® Image Processing Unit 6.0
* Support for Intel® Virtualization Technology
| {{Yes|Works}}
|
|
|-
|'''GPU'''
|Intel® UHD Graphics
* Graphics Max Dynamic Frequency: 750 MHz
* DirectX Support: 12.1
* OpenGL Support: 4.6
* OpenCL Support: 3.0
| {{Partial|Testing ongoing}}
|
|
|-
|'''NPU'''
|Intel® Gaussian & Neural Accelerator 3.0
| {{Partial|Not tested}}
|
|
|-
! Memory
| colspan="1" | LPDDR5 8GB
| {{Yes|Works}}
|
|
|-
!Storage
| colspan="1" |M.2 nvme slot
| {{Yes|Works}}
|populated with 128GB nvme stick
|
|-
!Display
| colspan="1" |Dual Display Outputs via Two Micro HDMI up to 4Kp60
| {{Yes|HDMI Works}}
|
|
|-
!Audio
| colspan="1" |1x Headphone Jack with Microphone Input
| {{Partial|Not tested}}
|HDMI audio TBD
|
|-
!Ethernet
| colspan="1" |1x 2.5G Ethernet Port with PoE Support(Additional PoE HAT Required)
| {{Yes|Works}}
|igc
|
|-
! Wi-Fi, BT module
| colspan="1" |IEEE 802.11 a/b/g/n/ac/ax (WiFi 6) and Bluetooth 5.2 with BLE
| {{Yes|Works}}
|rtw89_8852be
|
|-
! USB
| colspan="1" |USB 3.0 , 2.0
* 1x USB 2.0 HOST Type A Port
* 3x USB 3.0 HOST Type A Ports
| {{Yes|Works}}
|hub
|
|-
!IO
| colspan="1" |Connectivity
* 1x RTC Battery Socket (comes with)
* 1x 2-Pin Fan Header
* 1x 2-Pin Power Input Header
* 40-Pin Color GPIO Header
* - Up to 2x SPI
* - Up to 2x UART
* - Up to 2x I2C
* - Up to 16x PWM
* - Up to 8x PIO(Programmable IO)
* - 2 x 5V DC power out
* - 2 x 3.3V power out
| {{Partial|Not yet tested}}
|Fan provided with cooler (sold separately) works
|}
=== Accessories ===
* Purchased separately: active cooler (heatsink/fan) which functions as case
* 3A Power supply.
* Keyboard, mouse, micro-HDMI cable
=== Board Layout ===
<gallery widths=500px heights=400px perrow=2 caption="Rock 5c" >
File:X4 cooler 20250305.jpg|Radxa X4 cooler with sbc mounted under
File:Radxa X4 Layout.png|Radxa X4 board layout ([https://radxa.com/products/x/x4/#techspec source])
</gallery>
== GCC optimization<ref>[[https://forums.gentoo.org/viewtopic-p-8808643.html?sid=0a3c76428ba15477342e2f9d0595aacd GCC optimization]]</ref> ==
{{FileBox|filename=/etc/portage/make.conf|title=X4 example|lang=bash|1=
COMMON_FLAGS=" -O2 -pipe"
COMMON_FLAGS=${COMMON_FLAGS}" -march=alderlake -mabm -mno-cldemote -mno-hreset -mno-kl -mno-pconfig -mno-sgx -mno-widekl -mshstk --param=l1-cache-line-size=64 --param=l1-cache-size=32 --param=l2-cache-size=6144"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
}}
{{Note|For a hardened system consider appending <code>-fstack-protector-all</code>}}
== Gentoo Installation Options and Procedures ==
=== Getting to Know the Board ===
The purpose of this guide is to document "from scratch" procedures for installing a pure gentoo system on this SBC. However the quicker way to get gentoo up and running is to install another distribution, and replace the root file system contents. See [[User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Getting to Know the Board|Getting to Know the Board]]
=== Bootloader Build and Installation ===
To build a U-Boot bootloader from sources, see [[User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Build-Install-U-Boot|Build-Install-U-Boot]]
=== Assemble a Working Gentoo System===
To assemble a working Gentoo system with minimal effort, using resources developed above, consult [[User:Brendlefly62/RRadxa x4 N100 sbc with RP2040|Assemble a Gentoo System]]
=== Kernel Build and Installation===
To build a gentoo linux kernel (including modules, device tree blobs, etc) from sources, see [[User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Build-Install-Kernel|Build-Install-Kernel]]
==Performance==
===Temp/Freq Monitoring===
{{Cmd|tempfreq_mon_rk3588s-rock-5c
}}
== Bootable Gentoo system images ==
To use pre-built bootable system images files, see [[User:Brendlefly62/Rockchip RK3588S Rock 5c/Bootable-System-Images|Bootable-System-Images]]
== resources ==
* [[https://radxa.com/products https://radxa.com/products]]
* [[https://wiki.gentoo.org/wiki/Handbook:AMD64 https://wiki.gentoo.org/wiki/Handbook:AMD64]]
== References ==
{{reflist}}
[[Category:Orange Pi Boards]]' |
Unified diff of changes made by edit (edit_diff) | '@@ -200,5 +200,5 @@
* [[https://radxa.com/products https://radxa.com/products]]
-* [[https://radxa.com/products https://radxa.com/products]]
+* [[https://wiki.gentoo.org/wiki/Handbook:AMD64 https://wiki.gentoo.org/wiki/Handbook:AMD64]]
== References ==
' |
Old page size (old_size) | 7033 |
Lines added in edit (added_lines) | [
0 => '* [[https://wiki.gentoo.org/wiki/Handbook:AMD64 https://wiki.gentoo.org/wiki/Handbook:AMD64]]'
] |
Lines removed in edit (removed_lines) | [
0 => '* [[https://radxa.com/products https://radxa.com/products]]'
] |
New page text, stripped of any markup (new_text) | 'Construction of this page began 5 March 2025 (Work in Progress)
The Radxa X4 is a small, low power (6 Watt) sbc with a form-factor very similar to raspberry pi 5, but it is based on a quad-core Intel N100 cpu supported by Ami UEFI bios and has a raspberry pi 2040 (pico) chip on-board, to provide control of the sbc's 40 GPIO pins.
Tip* Since this is actually an x86_64 "motherboard", despite the tiny size, the install procedure is basically the same as for any other x86_64. Follow the Gentoo Handbook:AMD64. The layout and procedures documented below show how this installation was performed, taking advantage of the "joetoo" ecosystem available to support a wide variaety of sbcs. Mini-PCs excluded, this is the first x86_64 sbc in the joetoo umbrella sbc project.
Overall status: up and running. see metric section below
"Radxa X4 SBC with M.2 nvme main storage"
Contents
1 Hardware
1.1 Specifications
2 SoC
2.1 Accessories
2.2 Board Layout
3 GCC optimization[1]
4 Gentoo Installation Options and Procedures
4.1 Getting to Know the Board
4.2 Bootloader Build and Installation
4.3 Assemble a Working Gentoo System
4.4 Kernel Build and Installation
5 Performance
5.1 Temp/Freq Monitoring
6 Bootable Gentoo system images
7 resources
8 References
Hardware[edit]
X4 SBC, shwon in image to the right, mounted on cooler, with USB-C power (3A switched Raspberry Pi wall-wart PSU) and micro HDMI cable connected, and USB storage, USB keyboard/mouse dongle inserted. The device is actually shown inverted here, since the N100 cpu is mounted on the bottom of the sbc, and it is affixed to its cooler from "below", so the cooler can vent to open space above the device. For normal operation, the entire unit is turned over, to sit on 4 x rubber feet depicted in this photo. Note also visible in the picture are 128G NVMe M.2 stick, real-time clock battery, and wifi antennae. In this project, the nvme stick holds bootfs and rootfs partitions, with the luks-encrypted rootfs consisting of several lvm lvs unlocked and mounted via custom initramfs that resides with the kernel on the bootfs. The lunks encryption key can be provided by external usb storage device as shown here. Note also that the 40 x GPIO pins are controlled by an on-board Raspberry Pi RP2040 (pico).
Specifications[edit]
Make/model
Notes
Board
Radxa X4（8 GB）
https://radxa.com/products/x/x4/
RAM
LPDDR5
- Maximum Frequency of 4800 MT/s
- 8GB (4GB, 12GB, 16GB options)
Firmware
Ami uefi bios
Boot media
128GB nvme stick in M.2 slot for this application
(use uefi bios [and in this project, grub] to boot )
SoC[edit]
NoteThe hardware is tested on kernel version 6.12.16-gentoo as described below
Device
Make/model
Status
kernel drivers
Notes
CPU
Intel® Processor N100 (Alder Lake-N)
Total Cores: 4
Total Threads: 4
Max Turbo Frequency: 3.40 GHz
Cache: 6 MB Intel® Smart Cache
Intel® Gaussian & Neural Accelerator 3.0
Intel® Image Processing Unit 6.0
Support for Intel® Virtualization Technology
Works
GPU
Intel® UHD Graphics
Graphics Max Dynamic Frequency: 750 MHz
DirectX Support: 12.1
OpenGL Support: 4.6
OpenCL Support: 3.0
Testing ongoing
NPU
Intel® Gaussian & Neural Accelerator 3.0
Not tested
Memory
LPDDR5 8GB
Works
Storage
M.2 nvme slot
Works
populated with 128GB nvme stick
Display
Dual Display Outputs via Two Micro HDMI up to 4Kp60
HDMI Works
Audio
1x Headphone Jack with Microphone Input
Not tested
HDMI audio TBD
Ethernet
1x 2.5G Ethernet Port with PoE Support(Additional PoE HAT Required)
Works
igc
Wi-Fi, BT module
IEEE 802.11 a/b/g/n/ac/ax (WiFi 6) and Bluetooth 5.2 with BLE
Works
rtw89_8852be
USB
USB 3.0 , 2.0
1x USB 2.0 HOST Type A Port
3x USB 3.0 HOST Type A Ports
Works
hub
IO
Connectivity
1x RTC Battery Socket (comes with)
1x 2-Pin Fan Header
1x 2-Pin Power Input Header
40-Pin Color GPIO Header
- Up to 2x SPI
- Up to 2x UART
- Up to 2x I2C
- Up to 16x PWM
- Up to 8x PIO(Programmable IO)
- 2 x 5V DC power out
- 2 x 3.3V power out
Not yet tested
Fan provided with cooler (sold separately) works
Accessories[edit]
Purchased separately: active cooler (heatsink/fan) which functions as case
3A Power supply.
Keyboard, mouse, micro-HDMI cable
Board Layout[edit]
Rock 5c
Radxa X4 cooler with sbc mounted under
Radxa X4 board layout (source)
GCC optimization[1][edit]
FILE /etc/portage/make.confX4 example COMMON_FLAGS=" -O2 -pipe"
COMMON_FLAGS=${COMMON_FLAGS}" -march=alderlake -mabm -mno-cldemote -mno-hreset -mno-kl -mno-pconfig -mno-sgx -mno-widekl -mshstk --param=l1-cache-line-size=64 --param=l1-cache-size=32 --param=l2-cache-size=6144"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
NoteFor a hardened system consider appending -fstack-protector-all
Gentoo Installation Options and Procedures[edit]
Getting to Know the Board[edit]
The purpose of this guide is to document "from scratch" procedures for installing a pure gentoo system on this SBC. However the quicker way to get gentoo up and running is to install another distribution, and replace the root file system contents. See Getting to Know the Board
Bootloader Build and Installation[edit]
To build a U-Boot bootloader from sources, see Build-Install-U-Boot
Assemble a Working Gentoo System[edit]
To assemble a working Gentoo system with minimal effort, using resources developed above, consult Assemble a Gentoo System
Kernel Build and Installation[edit]
To build a gentoo linux kernel (including modules, device tree blobs, etc) from sources, see Build-Install-Kernel
Performance[edit]
Temp/Freq Monitoring[edit]
user $tempfreq_mon_rk3588s-rock-5c
Bootable Gentoo system images[edit]
To use pre-built bootable system images files, see Bootable-System-Images
resources[edit]
[https://radxa.com/products]
[https://wiki.gentoo.org/wiki/Handbook:AMD64]
References[edit]
↑ [GCC optimization]' |
Parsed HTML source of the new revision (new_html) | '<div class="mw-parser-output"><p>Construction of this page began 5 March 2025 (Work in Progress)
</p><p>The Radxa X4 is a small, low power (6 Watt) sbc with a form-factor very similar to raspberry pi 5, but it is based on a quad-core Intel N100 cpu supported by Ami UEFI bios and has a raspberry pi 2040 (pico) chip on-board, to provide control of the sbc's 40 GPIO pins.
</p>
<div class="alert alert-success gw-box" style="padding-top: 8px; padding-bottom: 8px;"><strong><i class="fa fa-check-circle"></i> Tip</strong><br />* Since this is actually an x86_64 "motherboard", despite the tiny size, the install procedure is basically the same as for any other x86_64. Follow the <a href="/wiki/Handbook:AMD64" title="Handbook:AMD64">Gentoo Handbook:AMD64</a>. The layout and procedures documented below show how this installation was performed, taking advantage of the "joetoo" ecosystem available to support a wide variaety of sbcs. Mini-PCs excluded, this is the first x86_64 sbc in the joetoo umbrella sbc project.</div>
<p>Overall status: up and running. see metric section below
</p>
<div class="thumb tright"><div class="thumbinner" style="width:502px;"><a href="/wiki/File:X4_mounted_20250305.jpg" class="image"><img alt="" src="/images/thumb/c/c0/X4_mounted_20250305.jpg/500px-X4_mounted_20250305.jpg" decoding="async" width="500" height="428" class="thumbimage" srcset="/images/thumb/c/c0/X4_mounted_20250305.jpg/750px-X4_mounted_20250305.jpg 1.5x, /images/thumb/c/c0/X4_mounted_20250305.jpg/1000px-X4_mounted_20250305.jpg 2x" /></a> <div class="thumbcaption"><div class="magnify"><a href="/wiki/File:X4_mounted_20250305.jpg" class="internal" title="Enlarge"></a></div>"Radxa X4 SBC with M.2 nvme main storage"</div></div></div>
<p><br />
</p>
<div id="toc" class="toc" role="navigation" aria-labelledby="mw-toc-heading"><input type="checkbox" role="button" id="toctogglecheckbox" class="toctogglecheckbox" style="display:none" /><div class="toctitle" lang="en" dir="ltr"><h2 id="mw-toc-heading">Contents</h2><span class="toctogglespan"><label class="toctogglelabel" for="toctogglecheckbox"></label></span></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="#Hardware"><span class="tocnumber">1</span> <span class="toctext">Hardware</span></a>
<ul>
<li class="toclevel-2 tocsection-2"><a href="#Specifications"><span class="tocnumber">1.1</span> <span class="toctext">Specifications</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-3"><a href="#SoC"><span class="tocnumber">2</span> <span class="toctext">SoC</span></a>
<ul>
<li class="toclevel-2 tocsection-4"><a href="#Accessories"><span class="tocnumber">2.1</span> <span class="toctext">Accessories</span></a></li>
<li class="toclevel-2 tocsection-5"><a href="#Board_Layout"><span class="tocnumber">2.2</span> <span class="toctext">Board Layout</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-6"><a href="#GCC_optimization.5B1.5D"><span class="tocnumber">3</span> <span class="toctext">GCC optimization<sup>[1]</sup></span></a></li>
<li class="toclevel-1 tocsection-7"><a href="#Gentoo_Installation_Options_and_Procedures"><span class="tocnumber">4</span> <span class="toctext">Gentoo Installation Options and Procedures</span></a>
<ul>
<li class="toclevel-2 tocsection-8"><a href="#Getting_to_Know_the_Board"><span class="tocnumber">4.1</span> <span class="toctext">Getting to Know the Board</span></a></li>
<li class="toclevel-2 tocsection-9"><a href="#Bootloader_Build_and_Installation"><span class="tocnumber">4.2</span> <span class="toctext">Bootloader Build and Installation</span></a></li>
<li class="toclevel-2 tocsection-10"><a href="#Assemble_a_Working_Gentoo_System"><span class="tocnumber">4.3</span> <span class="toctext">Assemble a Working Gentoo System</span></a></li>
<li class="toclevel-2 tocsection-11"><a href="#Kernel_Build_and_Installation"><span class="tocnumber">4.4</span> <span class="toctext">Kernel Build and Installation</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-12"><a href="#Performance"><span class="tocnumber">5</span> <span class="toctext">Performance</span></a>
<ul>
<li class="toclevel-2 tocsection-13"><a href="#Temp.2FFreq_Monitoring"><span class="tocnumber">5.1</span> <span class="toctext">Temp/Freq Monitoring</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-14"><a href="#Bootable_Gentoo_system_images"><span class="tocnumber">6</span> <span class="toctext">Bootable Gentoo system images</span></a></li>
<li class="toclevel-1 tocsection-15"><a href="#resources"><span class="tocnumber">7</span> <span class="toctext">resources</span></a></li>
<li class="toclevel-1 tocsection-16"><a href="#References"><span class="tocnumber">8</span> <span class="toctext">References</span></a></li>
</ul>
</div>
<h2><span class="mw-headline" id="Hardware">Hardware</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=1" title="Edit section: Hardware">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
<p>X4 SBC, shwon in image to the right, mounted on cooler, with USB-C power (3A switched Raspberry Pi wall-wart PSU) and micro HDMI cable connected, and USB storage, USB keyboard/mouse dongle inserted. The device is actually shown inverted here, since the N100 cpu is mounted on the bottom of the sbc, and it is affixed to its cooler from "below", so the cooler can vent to open space above the device. For normal operation, the entire unit is turned over, to sit on 4 x rubber feet depicted in this photo. Note also visible in the picture are 128G NVMe M.2 stick, real-time clock battery, and wifi antennae. In this project, the nvme stick holds bootfs and rootfs partitions, with the luks-encrypted rootfs consisting of several lvm lvs unlocked and mounted via custom initramfs that resides with the kernel on the bootfs. The lunks encryption key can be provided by external usb storage device as shown here. Note also that the 40 x GPIO pins are controlled by an on-board Raspberry Pi RP2040 (pico).
</p>
<h3><span class="mw-headline" id="Specifications">Specifications</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=2" title="Edit section: Specifications">edit</a><span class="mw-editsection-bracket">]</span></span></h3>
<table class="table table-condensed table-striped" style="width: 100%;">
<tbody><tr>
<th colspan="2" width="50%">Make/model
</th>
<th scope="col" width="50%">Notes
</th></tr>
<tr>
<td>Board
</td>
<td>Radxa X4（8 GB）
</td>
<td><a rel="nofollow" class="external free" href="https://radxa.com/products/x/x4/">https://radxa.com/products/x/x4/</a>
</td></tr>
<tr>
<td>RAM
</td>
<td>LPDDR5
<p>- Maximum Frequency of 4800 MT/s
- 8GB (4GB, 12GB, 16GB options)
</p>
</td>
<td>
</td></tr>
<tr>
<td>Firmware
</td>
<td>Ami uefi bios
</td>
<td>
</td></tr>
<tr>
<td>Boot media
</td>
<td>128GB nvme stick in M.2 slot for this application
</td>
<td>(use uefi bios [and in this project, grub] to boot )
</td></tr></tbody></table>
<h2><span class="mw-headline" id="SoC">SoC</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=3" title="Edit section: SoC">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
<div class="alert alert-info gw-box" style="padding-top: 8px; padding-bottom: 8px;"><strong><i class="fa fa-sticky-note-o fa-rotate-180"></i> Note</strong><br />The hardware is tested on kernel version 6.12.16-gentoo as described below</div>
<table class="table table-condensed table-striped" style="width: auto;">
<tbody><tr>
<th scope="col" width="20%">Device
</th>
<th scope="col" width="50%">Make/model
</th>
<th scope="col" width="10%">Status
</th>
<th>kernel drivers
</th>
<th scope="col" width="20%">Notes
</th></tr>
<tr>
<td><b>CPU</b>
</td>
<td>Intel® Processor N100 (Alder Lake-N)
<ul><li>Total Cores: 4</li>
<li>Total Threads: 4</li>
<li>Max Turbo Frequency: 3.40 GHz</li>
<li>Cache: 6 MB Intel® Smart Cache</li>
<li>Intel® Gaussian & Neural Accelerator 3.0</li>
<li>Intel® Image Processing Unit 6.0</li>
<li>Support for Intel® Virtualization Technology</li></ul>
</td>
<td style="background-color: #DFF0D8; color: black; vertical-align: middle; text-align: left;" class="cell-yes"><i class="fa fa-check"></i> Works
</td>
<td>
</td>
<td>
</td></tr>
<tr>
<td><b>GPU</b>
</td>
<td>Intel® UHD Graphics
<ul><li>Graphics Max Dynamic Frequency: 750 MHz</li>
<li>DirectX Support: 12.1</li>
<li>OpenGL Support: 4.6</li>
<li>OpenCL Support: 3.0</li></ul>
</td>
<td style="background: #FFB; color: black; vertical-align: middle; text-align: left;" class="cell-partial"><i class="fa fa-minus"></i> Testing ongoing
</td>
<td>
</td>
<td>
</td></tr>
<tr>
<td><b>NPU</b>
</td>
<td>Intel® Gaussian & Neural Accelerator 3.0
</td>
<td style="background: #FFB; color: black; vertical-align: middle; text-align: left;" class="cell-partial"><i class="fa fa-minus"></i> Not tested
</td>
<td>
</td>
<td>
</td></tr>
<tr>
<th>Memory
</th>
<td colspan="1">LPDDR5 8GB
</td>
<td style="background-color: #DFF0D8; color: black; vertical-align: middle; text-align: left;" class="cell-yes"><i class="fa fa-check"></i> Works
</td>
<td>
</td>
<td>
</td></tr>
<tr>
<th>Storage
</th>
<td colspan="1">M.2 nvme slot
</td>
<td style="background-color: #DFF0D8; color: black; vertical-align: middle; text-align: left;" class="cell-yes"><i class="fa fa-check"></i> Works
</td>
<td>populated with 128GB nvme stick
</td>
<td>
</td></tr>
<tr>
<th>Display
</th>
<td colspan="1">Dual Display Outputs via Two Micro HDMI up to 4Kp60
</td>
<td style="background-color: #DFF0D8; color: black; vertical-align: middle; text-align: left;" class="cell-yes"><i class="fa fa-check"></i> HDMI Works
</td>
<td>
</td>
<td>
</td></tr>
<tr>
<th>Audio
</th>
<td colspan="1">1x Headphone Jack with Microphone Input
</td>
<td style="background: #FFB; color: black; vertical-align: middle; text-align: left;" class="cell-partial"><i class="fa fa-minus"></i> Not tested
</td>
<td>HDMI audio TBD
</td>
<td>
</td></tr>
<tr>
<th>Ethernet
</th>
<td colspan="1">1x 2.5G Ethernet Port with PoE Support(Additional PoE HAT Required)
</td>
<td style="background-color: #DFF0D8; color: black; vertical-align: middle; text-align: left;" class="cell-yes"><i class="fa fa-check"></i> Works
</td>
<td>igc
</td>
<td>
</td></tr>
<tr>
<th>Wi-Fi, BT module
</th>
<td colspan="1">IEEE 802.11 a/b/g/n/ac/ax (WiFi 6) and Bluetooth 5.2 with BLE
</td>
<td style="background-color: #DFF0D8; color: black; vertical-align: middle; text-align: left;" class="cell-yes"><i class="fa fa-check"></i> Works
</td>
<td>rtw89_8852be
</td>
<td>
</td></tr>
<tr>
<th>USB
</th>
<td colspan="1">USB 3.0 , 2.0
<ul><li>1x USB 2.0 HOST Type A Port</li>
<li>3x USB 3.0 HOST Type A Ports</li></ul>
</td>
<td style="background-color: #DFF0D8; color: black; vertical-align: middle; text-align: left;" class="cell-yes"><i class="fa fa-check"></i> Works
</td>
<td>hub
</td>
<td>
</td></tr>
<tr>
<th>IO
</th>
<td colspan="1">Connectivity
<ul><li>1x RTC Battery Socket (comes with)</li>
<li>1x 2-Pin Fan Header</li>
<li>1x 2-Pin Power Input Header</li>
<li>40-Pin Color GPIO Header</li>
<li>- Up to 2x SPI</li>
<li>- Up to 2x UART</li>
<li>- Up to 2x I2C</li>
<li>- Up to 16x PWM</li>
<li>- Up to 8x PIO(Programmable IO)</li>
<li>- 2 x 5V DC power out</li>
<li>- 2 x 3.3V power out</li></ul>
</td>
<td style="background: #FFB; color: black; vertical-align: middle; text-align: left;" class="cell-partial"><i class="fa fa-minus"></i> Not yet tested
</td>
<td>Fan provided with cooler (sold separately) works
</td></tr></tbody></table>
<h3><span class="mw-headline" id="Accessories">Accessories</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=4" title="Edit section: Accessories">edit</a><span class="mw-editsection-bracket">]</span></span></h3>
<ul><li>Purchased separately: active cooler (heatsink/fan) which functions as case</li>
<li>3A Power supply.</li>
<li>Keyboard, mouse, micro-HDMI cable</li></ul>
<h3><span class="mw-headline" id="Board_Layout">Board Layout</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=5" title="Edit section: Board Layout">edit</a><span class="mw-editsection-bracket">]</span></span></h3>
<ul class="gallery mw-gallery-traditional" style="max-width: 1086px;">
<li class="gallerycaption">Rock 5c</li>
<li class="gallerybox" style="width: 535px"><div style="width: 535px">
<div class="thumb" style="width: 530px;"><div style="margin:56.5px auto;"><a href="/wiki/File:X4_cooler_20250305.jpg" class="image"><img alt="" src="/images/thumb/7/7e/X4_cooler_20250305.jpg/500px-X4_cooler_20250305.jpg" decoding="async" width="500" height="317" srcset="/images/thumb/7/7e/X4_cooler_20250305.jpg/750px-X4_cooler_20250305.jpg 1.5x, /images/thumb/7/7e/X4_cooler_20250305.jpg/1000px-X4_cooler_20250305.jpg 2x" /></a></div></div>
<div class="gallerytext">
<p>Radxa X4 cooler with sbc mounted under
</p>
</div>
</div></li>
<li class="gallerybox" style="width: 535px"><div style="width: 535px">
<div class="thumb" style="width: 530px;"><div style="margin:69px auto;"><a href="/wiki/File:Radxa_X4_Layout.png" class="image"><img alt="" src="/images/thumb/6/69/Radxa_X4_Layout.png/500px-Radxa_X4_Layout.png" decoding="async" width="500" height="292" srcset="/images/thumb/6/69/Radxa_X4_Layout.png/750px-Radxa_X4_Layout.png 1.5x, /images/6/69/Radxa_X4_Layout.png 2x" /></a></div></div>
<div class="gallerytext">
<p>Radxa X4 board layout (<a rel="nofollow" class="external text" href="https://radxa.com/products/x/x4/#techspec">source</a>)
</p>
</div>
</div></li>
</ul>
<h2><span id="GCC_optimization[1]"></span><span class="mw-headline" id="GCC_optimization.5B1.5D">GCC optimization<sup id="cite_ref-1" class="reference"><a href="#cite_note-1">[1]</a></sup></span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=6" title="Edit section: GCC optimization[1]">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
<div class="box-caption"><span class="label" style="margin-right: .5em; background-color: #54487A">FILE</span> <strong><code style="border: none; background: none; color: #54487A; margin-right: .5em;">/etc/portage/make.conf</code></strong><strong>X4 example</strong></div> <div class="mw-highlight mw-highlight-lang-bash mw-content-ltr" dir="ltr"><pre><span></span><span class="nv">COMMON_FLAGS</span><span class="o">=</span><span class="s2">" -O2 -pipe"</span>
<span class="nv">COMMON_FLAGS</span><span class="o">=</span><span class="si">${</span><span class="nv">COMMON_FLAGS</span><span class="si">}</span><span class="s2">" -march=alderlake -mabm -mno-cldemote -mno-hreset -mno-kl -mno-pconfig -mno-sgx -mno-widekl -mshstk --param=l1-cache-line-size=64 --param=l1-cache-size=32 --param=l2-cache-size=6144"</span>
<span class="nv">CFLAGS</span><span class="o">=</span><span class="s2">"</span><span class="si">${</span><span class="nv">COMMON_FLAGS</span><span class="si">}</span><span class="s2">"</span>
<span class="nv">CXXFLAGS</span><span class="o">=</span><span class="s2">"</span><span class="si">${</span><span class="nv">COMMON_FLAGS</span><span class="si">}</span><span class="s2">"</span>
</pre></div>
<div class="alert alert-info gw-box" style="padding-top: 8px; padding-bottom: 8px;"><strong><i class="fa fa-sticky-note-o fa-rotate-180"></i> Note</strong><br />For a hardened system consider appending <code>-fstack-protector-all</code></div>
<h2><span class="mw-headline" id="Gentoo_Installation_Options_and_Procedures">Gentoo Installation Options and Procedures</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=7" title="Edit section: Gentoo Installation Options and Procedures">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
<h3><span class="mw-headline" id="Getting_to_Know_the_Board">Getting to Know the Board</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=8" title="Edit section: Getting to Know the Board">edit</a><span class="mw-editsection-bracket">]</span></span></h3>
<p>The purpose of this guide is to document "from scratch" procedures for installing a pure gentoo system on this SBC. However the quicker way to get gentoo up and running is to install another distribution, and replace the root file system contents. See <a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040/Getting_to_Know_the_Board&action=edit&redlink=1" class="new" title="User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Getting to Know the Board (page does not exist)">Getting to Know the Board</a>
</p>
<h3><span class="mw-headline" id="Bootloader_Build_and_Installation">Bootloader Build and Installation</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=9" title="Edit section: Bootloader Build and Installation">edit</a><span class="mw-editsection-bracket">]</span></span></h3>
<p>To build a U-Boot bootloader from sources, see <a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040/Build-Install-U-Boot&action=edit&redlink=1" class="new" title="User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Build-Install-U-Boot (page does not exist)">Build-Install-U-Boot</a>
</p>
<h3><span class="mw-headline" id="Assemble_a_Working_Gentoo_System">Assemble a Working Gentoo System</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=10" title="Edit section: Assemble a Working Gentoo System">edit</a><span class="mw-editsection-bracket">]</span></span></h3>
<p>To assemble a working Gentoo system with minimal effort, using resources developed above, consult <a href="/index.php?title=User:Brendlefly62/RRadxa_x4_N100_sbc_with_RP2040&action=edit&redlink=1" class="new" title="User:Brendlefly62/RRadxa x4 N100 sbc with RP2040 (page does not exist)">Assemble a Gentoo System</a>
</p>
<h3><span class="mw-headline" id="Kernel_Build_and_Installation">Kernel Build and Installation</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=11" title="Edit section: Kernel Build and Installation">edit</a><span class="mw-editsection-bracket">]</span></span></h3>
<p>To build a gentoo linux kernel (including modules, device tree blobs, etc) from sources, see <a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040/Build-Install-Kernel&action=edit&redlink=1" class="new" title="User:Brendlefly62/Radxa x4 N100 sbc with RP2040/Build-Install-Kernel (page does not exist)">Build-Install-Kernel</a>
</p>
<h2><span class="mw-headline" id="Performance">Performance</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=12" title="Edit section: Performance">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
<h3><span id="Temp/Freq_Monitoring"></span><span class="mw-headline" id="Temp.2FFreq_Monitoring">Temp/Freq Monitoring</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=13" title="Edit section: Temp/Freq Monitoring">edit</a><span class="mw-editsection-bracket">]</span></span></h3>
<div class="cmd-box"><div><code style="color: #4E9A06; user-select: none; font-weight: bold;">user <span style="color:royalblue;">$</span></code><code>tempfreq_mon_rk3588s-rock-5c
</code></div></div>
<h2><span class="mw-headline" id="Bootable_Gentoo_system_images">Bootable Gentoo system images</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=14" title="Edit section: Bootable Gentoo system images">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
<p>To use pre-built bootable system images files, see <a href="/index.php?title=User:Brendlefly62/Rockchip_RK3588S_Rock_5c/Bootable-System-Images&action=edit&redlink=1" class="new" title="User:Brendlefly62/Rockchip RK3588S Rock 5c/Bootable-System-Images (page does not exist)">Bootable-System-Images</a>
</p>
<h2><span class="mw-headline" id="resources">resources</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=15" title="Edit section: resources">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
<ul><li>[<a rel="nofollow" class="external text" href="https://radxa.com/products">https://radxa.com/products</a>]</li>
<li>[<a rel="nofollow" class="external text" href="https://wiki.gentoo.org/wiki/Handbook:AMD64">https://wiki.gentoo.org/wiki/Handbook:AMD64</a>]</li></ul>
<h2><span class="mw-headline" id="References">References</span><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/index.php?title=User:Brendlefly62/Radxa_x4_N100_sbc_with_RP2040&action=edit&section=16" title="Edit section: References">edit</a><span class="mw-editsection-bracket">]</span></span></h2>
<div class="reflist" style="list-style-type: decimal;">
<div class="mw-references-wrap"><ol class="references">
<li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">[<a rel="nofollow" class="external text" href="https://forums.gentoo.org/viewtopic-p-8808643.html?sid=0a3c76428ba15477342e2f9d0595aacd">GCC optimization</a>]</span>
</li>
</ol></div></div>
' |
Unix timestamp of change (timestamp) | 1741206094 |
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