Board:asus/a8n sli

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The wiki is being retired!

Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to Contributions welcome!

This HOWTO explains how to use coreboot on the A8N-SLI board.

Works fine, only smaller issues remain to be fixed. A list of known issues is available.


Device/functionality Status Comments
CPU works OK Tested: TODO
L1 cache enabled OK CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
L2 cache enabled OK CPU: L2 Cache: 512K (64 bytes/line)
L3 cache enabled N/A
Multiple CPU support N/A
Multi-core support Untested
Hardware virtualization N/A
DDR WIP See known Issues, only DIMMs A2_B2 or B2 will allow boot.
Dual channel support Untested
ECC support Untested
On-board Hardware
On-board IDE 3.5"
On-board IDE 2.5" N/A
On-board SATA WIP See known Issues, Only SATA port 3 is tested as working
On-board SCSI Unknown
On-board USB
On-board VGA N/A
On-board Ethernet
On-board Audio WIP This is being worked on.
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 No see known issues
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
PCI Express x2 add-on cards N/A
PCI Express x4 add-on cards Untested
PCI Express x8 add-on cards N/A
PCI Express x16 add-on cards WIP Will boot with a card in PCIEX16_1, if card outputs to screen is untested
PCI Express x32 add-on cards N/A
HTX add-on cards N/A
Legacy / Super I/O
Floppy WIP
Serial port 1 (COM1) OK
Serial port 2 (COM2) N/A
Parallel port
PS/2 keyboard
PS/2 mouse
Game port WIP
Infrared N/A
PC speaker
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
Hardware watchdog N/A
SMBus Unknown
CAN bus N/A
CPU frequency scaling No Needs (at least partial) ACPI support.
Other powersaving features N/A
ACPI No There's no ACPI implementation for this board.
Suspend Unknown
Nonstandard LEDs
High precision event timers (HPET)
Random number generator (RNG) N/A
Wake on modem ring Untested
Wake on LAN
Wake on keyboard Untested
Wake on mouse Untested
TPM Unknown
Flashrom OK

Building coreboot

Note: you can use the same target as for the ASUS A8N-E board. At the time of writing there's no specific target for the ASUS A8N-SLI.

See the Build HOWTO for information on how to build coreboot for this board.

Known issues

  • The MAC address is stored in flash for almost all CK804/MCP55 boards. All of these boards flashed with coreboot probably have the same MAC address. See src/southbridge/nvidia/ck804/ and src/southbridge/nvidia/mcp55/ for details. On some of these boards, the MAC address is stored in a separate EEPROM, but you can't count on that.
  • halt -p / shutdown -P fails due to no acpi
  • possible issue if PCI card in PCI_1 causing hang
  • SATA ports 1 and 2 will not allow disk to be found SATA port 3 works and 4 is untested.


  • 512mb ram, DIMM A1 ( 1x512mb ) - Boots
  • 512mb ram, DIMM A2 ( 1x512mb ) - Hangs
  • 512mb ram, DIMM B1 ( 1x512mb ) - Hangs
  • 512mb ram, DIMM B2 ( 1x512mb ) - Hangs
  • 1gb ram, DIMMs A2_B2 ( 2x512mb ) - Boots
  • 1.5Gb Ram, DIMMS A2_B2_B1 (3x512Mb) - Hangs on Ram2.00
  • 1.5Gb Ram, DIMMS A2_B2_A1 (3x512Mb) - Hangs on Ram2.00
  • 1.5Gb Ram, DIMMS A2_B2_B1_A1 (4x512Mb) - Hangs on Ram2.00

If you can help out with this, please join the mailing list and let us know!

Public domain I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide.

In case this is not legally possible:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.