Difference between revisions of "Board:asus/f2a85-m"

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(Hardware info)
(TODOs: This board does not have on-board SCSI, nor PCI-X or mini-PCI slots.)
Line 61: Line 61:
|Onboard_VGA_status = OK
|Onboard_VGA_status = OK
|Onboard_VGA_comments =  Use dd to [[VGA_support|extract the legacy BIOS]], HDMI untested
|Onboard_VGA_comments =  Use dd to [[VGA_support|extract the legacy BIOS]], HDMI untested
|Onboard_SCSI_status = N/A
|Onboard_ethernet_status = OK
|Onboard_ethernet_status = OK
|Onboard_audio_status = Untested
|Onboard_audio_status = Untested
Line 80: Line 81:
|PCIE_x16_comments =  
|PCIE_x16_comments =  
|PCIE_x32_status = N/A
|PCIE_x32_status = N/A
|Mini_PCI_cards_status = N/A
|PCIX_cards_status = N/A
|HTX_status = N/A
|HTX_status = N/A

Revision as of 21:18, 26 August 2013



  • The ASUS F2A85-M CSM is same as F2A85-M.
  • get VGA from original bios using this:

Source: http://www.coreboot.org/pipermail/coreboot/2012-December/073133.html

for internal VGA: Boot the legacy BIOS, and use VGA_support chapter

extracting from your system: dd if=/dev/mem of=vgabios.bin bs=1k count=64 skip=768

  • Add VGA bios in the menuconfig
  • If you use PS/2 de-select legacy free
  • De-select running option ROMs, Seabios will run the ROMs that coreboot loads into memory so you should get a text display from Seabios
  • It is required that seabios is the coreboot payload for the F2A85-M or the internal VGA will not be initialized. But read SeaBIOS for how to add payloads to SeaBIOS and set SeaBIOS' boot order to run your payload.
  • Hotswapping the PDIP BIOS chip has some issues (most likely USB3 XHCI, disable it in original bios before hot-flashing to coreboot). Drop a mail to mailing list if you have issues.


  • test virtualization
  • test HDMI
  • update VERB tables
  • test suspend
Device/functionality Status Comments
CPU works OK
L1 cache enabled OK
L2 cache enabled OK
L3 cache enabled N/A
Multiple CPU support OK
Multi-core support OK
Hardware virtualization Untested
DDR3 OK Please select right voltage in menuconfig! Default is 1.5V but some DIMMs need more or less!
Dual channel support OK
ECC support N/A
On-board Hardware
On-board IDE 3.5" N/A
On-board IDE 2.5" N/A
On-board SATA OK Tested all ports of sixpack.
On-board SCSI N/A
On-board USB OK Issues with XHCI exist with Asus' BIOS as well
On-board VGA OK Use dd to extract the legacy BIOS, HDMI untested
On-board Ethernet OK
On-board Audio Untested
On-board Modem N/A
On-board FireWire N/A
On-board Smartcard reader N/A
On-board CompactFlash N/A
On-board PCMCIA N/A
On-board Wifi N/A
On-board Bluetooth N/A
On-board SD card reader N/A
Add-on slots/cards
ISA add-on cards N/A
Audio/Modem-Riser (AMR/CNR) cards N/A
PCI add-on cards OK
Mini-PCI add-on cards N/A
Mini-PCI-Express add-on cards Unknown
PCI-X add-on cards N/A
AGP graphics cards N/A
PCI Express x1 add-on cards OK
PCI Express x2 add-on cards N/A
PCI Express x4 add-on cards OK
PCI Express x8 add-on cards N/A
PCI Express x16 add-on cards OK
PCI Express x32 add-on cards N/A
HTX add-on cards N/A
Legacy / Super I/O
Floppy N/A
Serial port 1 (COM1) OK
Serial port 2 (COM2) N/A
Parallel port N/A
PS/2 keyboard OK
PS/2 mouse Untested
Game port N/A
Infrared  ?
PC speaker OK
DiskOnChip N/A
Trackpoint N/A
Touchpad N/A
Fn Hotkeys N/A
Fingerprint Reader N/A
Docking VGA N/A
Docking LAN N/A
Docking USB N/A
Docking Audio N/A
Docking Displayport N/A
Thinklight N/A
Webcam N/A
Sensors / fan control Untested
Hardware watchdog Unknown
SMBus Unknown
CAN bus N/A
CPU frequency scaling OK
Other powersaving features  ?
ACPI OK ACPI power button event works, suspend untested.
Reboot OK warm reboot from Asus' BIOS to coreboot does not work, use reset button after the first time you flash coreboot
Poweroff OK
Suspend Unknown
Nonstandard LEDs OK
High precision event timers (HPET) OK
Random number generator (RNG)  ?
Wake on modem ring Untested
Wake on LAN Untested
Wake on keyboard Untested
Wake on mouse Untested
TPM Unknown
Flashrom OK

Hardware info

This board ships with a socketed Winbond 25Q64F, 64 Mbit (8 Mbyte) chip, in PDIP 300 mil package:

Winbond 25Q64F

The chip manual is available here

For out of band flashing, I use a

 3M test clip model 923739-08-ND

It has .300" spacing, 8 pin DIP clip, gold finish and 'headless heads'. I hook this up to a bus pirate. This works but reading and writing take forever. Large chip...


I use:

2x 2GB DDR3 modules in blue slots:

#modprobe i2c-piix4
#modprobe eeprom

---=== Memory Characteristics ===---                                                        
Fine time base                                  2.500 ps                                    
Medium time base                                0.125 ns                                    
Maximum module speed                            1333MHz (PC3-10666)                         
Size                                            2048 MB                                     
Banks x Rows x Columns x Bits                   8 x 14 x 10 x 64                            
Ranks                                           2                                           
SDRAM Device Width                              8 bits                                      
tCL-tRCD-tRP-tRAS                               8-8-8-24                                    
Supported CAS Latencies (tCL)                   9T, 8T, 7T, 6T