Asrock C70M1
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Asrock C70M1 is a low-cost small form factor motherboard with integrated AMD Dual-Core Ontario C-70 APU and four SATA connectors which makes it suitable for small storage or server use.
Hardware notes
When initramfs fails and upon enter recovery shell, USB keyboard won't work and you'll have to use PS/2. On the other hand, USB keyboard can be used for choosing the boot media and entering UEFI setup as well as working with the setup.
Configuration
CODE /etc/portage/make.conf
CHOST="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CXXFLAGS="${CFLAGS}"
CPU_FLAGS_X86="mmx mmxext popcnt sse sse2 sse3 sse4a ssse3"
MAKEOPTS="-j3"
Installation notes
Compilation speed
The CPU is rather slow so it may be worth avoiding some steps that make the installation unnecessarily time consuming.
LVM
Unless it is required, disabling the thin USE on sys-fs/lvm2 may save some extensive compilation times:
root #echo sys-fs/lvm2 -thin >> /etc/portage/package.use/lvm2Resources
root #lspci00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Complex 00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 7290] 00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Port 00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (rev 40) 00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller 00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 42) 00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 IDE Controller (rev 40) 00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) (rev 40) 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller (rev 40) 00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge (rev 40) 00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI2 Controller 00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0) 00:15.1 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 1) 00:16.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller 00:16.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 0 (rev 43) 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 1 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 2 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 3 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 4 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 6 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 5 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 7 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
user $gcc -march=native -Q --help=targetThe following options are target specific:
-m128bit-long-double [disabled]
-m32 [disabled]
-m3dnow [disabled]
-m3dnowa [disabled]
-m64 [enabled]
-m80387 [enabled]
-m8bit-idiv [disabled]
-m96bit-long-double [enabled]
-mabi= sysv
-mabm [enabled]
-maccumulate-outgoing-args [disabled]
-maddress-mode= short
-madx [disabled]
-maes [disabled]
-malign-double [disabled]
-malign-functions= 0
-malign-jumps= 0
-malign-loops= 0
-malign-stringops [enabled]
-mandroid [disabled]
-march= btver1
-masm= att
-mavx [disabled]
-mavx2 [disabled]
-mavx256-split-unaligned-load [disabled]
-mavx256-split-unaligned-store [disabled]
-mbionic [disabled]
-mbmi [disabled]
-mbmi2 [disabled]
-mbranch-cost= 0
-mcld [disabled]
-mcmodel= 32
-mcpu=
-mcrc32 [disabled]
-mcx16 [enabled]
-mdispatch-scheduler [disabled]
-mf16c [disabled]
-mfancy-math-387 [enabled]
-mfentry [enabled]
-mfma [disabled]
-mfma4 [disabled]
-mforce-drap [disabled]
-mfp-ret-in-387 [enabled]
-mfpmath= 387
-mfsgsbase [disabled]
-mfused-madd
-mfxsr [enabled]
-mglibc [enabled]
-mhard-float [enabled]
-mhle [disabled]
-mieee-fp [enabled]
-mincoming-stack-boundary= 0
-minline-all-stringops [disabled]
-minline-stringops-dynamically [disabled]
-mintel-syntax
-mlarge-data-threshold= 0x10000
-mlong-double-64 [disabled]
-mlong-double-80 [enabled]
-mlwp [disabled]
-mlzcnt [enabled]
-mmmx [disabled]
-mmovbe [disabled]
-mms-bitfields [disabled]
-mno-align-stringops [disabled]
-mno-fancy-math-387 [disabled]
-mno-push-args [disabled]
-mno-red-zone [disabled]
-mno-sse4 [enabled]
-momit-leaf-frame-pointer [disabled]
-mpc32 [disabled]
-mpc64 [disabled]
-mpc80 [disabled]
-mpclmul [disabled]
-mpopcnt [enabled]
-mprefer-avx128 [disabled]
-mpreferred-stack-boundary= 0
-mprfchw [enabled]
-mpush-args [enabled]
-mrdrnd [disabled]
-mrdseed [disabled]
-mrecip [disabled]
-mrecip=
-mred-zone [enabled]
-mregparm= 0
-mrtd [disabled]
-mrtm [disabled]
-msahf [enabled]
-msoft-float [disabled]
-msse [disabled]
-msse2 [disabled]
-msse2avx [disabled]
-msse3 [disabled]
-msse4 [disabled]
-msse4.1 [disabled]
-msse4.2 [disabled]
-msse4a [disabled]
-msse5
-msseregparm [disabled]
-mssse3 [disabled]
-mstack-arg-probe [disabled]
-mstackrealign [enabled]
-mstringop-strategy= [default]
-mtbm [disabled]
-mtls-dialect= gnu
-mtls-direct-seg-refs [enabled]
-mtune= btver1
-muclibc [disabled]
-mveclibabi= [default]
-mvect8-ret-in-mem [disabled]
-mvzeroupper [disabled]
-mx32 [disabled]
-mxop [disabled]
-mxsave [disabled]
-mxsaveopt [disabled]
Known assembler dialects (for use with the -masm-dialect= option):
att intel
Known ABIs (for use with the -mabi= option):
ms sysv
Known code models (for use with the -mcmodel= option):
32 kernel large medium small
Valid arguments to -mfpmath=:
387 387+sse 387,sse both sse sse+387 sse,387
Known vectorization library ABIs (for use with the -mveclibabi= option):
acml svml
Known address mode (for use with the -maddress-mode= option):
long short
Valid arguments to -mstringop-strategy=:
byte_loop libcall loop rep_4byte rep_8byte rep_byte unrolled_loop
Known TLS dialects (for use with the -mtls-dialect= option):
gnu gnu2
user $cpuinfo2cpuflags-x86CPU_FLAGS_X86="mmx mmxext popcnt sse sse2 sse3 sse4a ssse3"
user $cat /proc/cpuinfoprocessor : 0 vendor_id : AuthenticAMD cpu family : 20 model : 2 model name : AMD C-70 APU with Radeon(tm) HD Graphics stepping : 0 microcode : 0x500010d cpu MHz : 1000.000 cache size : 512 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 6 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni monitor ssse3 cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch ibs skinit wdt arat cpb hw_pstate npt lbrv svm_lock nrip_save pausefilter vmmcall bugs : fxsave_leak bogomips : 2000.09 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate cpb processor : 1 vendor_id : AuthenticAMD cpu family : 20 model : 2 model name : AMD C-70 APU with Radeon(tm) HD Graphics stepping : 0 microcode : 0x500010d cpu MHz : 1000.000 cache size : 512 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 6 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni monitor ssse3 cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch ibs skinit wdt arat cpb hw_pstate npt lbrv svm_lock nrip_save pausefilter vmmcall bugs : fxsave_leak bogomips : 2000.09 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate cpb