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 https://doc.coreboot.org/. Contributions welcome!
This HOWTO explains how to use coreboot on the ASUS A8N5X board.
As of 2008-11-20, a small patch is needed for ram access to work properly.
|CPU works||OK||Tested: AMD Athlon(tm) 64 Processor 3500+.|
|L1 cache enabled||OK||CPU: L1 Cache: 128K|
|L2 cache enabled||OK||CPU: L2 Cache: 512K|
|L3 cache enabled||N/A|
|Multiple CPU support||N/A|
|DDR||OK||Tested with one DIMM in slot DIMM_B1 (see manual), and with two DIMMs in slots DIMM_B1 and DIMM_B2.|
|Dual channel support||Untested|
|ECC support||Untested||The board supports ECC according to the manual.|
|On-board IDE 3.5"||OK||Tested: Primary IDE (master).|
|On-board IDE 2.5"||N/A|
|On-board USB||OK||Tested: USB keyboard|
|On-board Audio||No||It didn't work with proprietary BIOS either (using Linux/ALSA)|
|On-board Smartcard reader||N/A|
|On-board SD card reader||N/A|
|ISA add-on cards||N/A|
|Audio/Modem-Riser (AMR/CNR) cards||N/A|
|PCI add-on cards||No||Plugging any PCI card almost always result in crash when something attempts to access the PCI bus (although, specific cards were found not to produce this error, YMMV)|
|Mini-PCI add-on cards||Unknown|
|Mini-PCI-Express add-on cards||Unknown|
|PCI-X add-on cards||Unknown|
|AGP graphics cards||N/A|
|PCI Express x1 add-on cards||Untested|
|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||No||Doesn't seem to be detected|
|PCI Express x32 add-on cards||N/A|
|HTX add-on cards||N/A|
|Legacy / Super I/O|
|Serial port 1 (COM1)||OK|
|Serial port 2 (COM2)||N/A|
|Parallel port||OK||Tested: modprobe ppdev, further tests were not performed.|
|Sensors / fan control||OK||Tested: sensors reports K8 core temp. (kernel module k8temp) and various other values from the IT8712F Super I/O (kernel module it87).|
|CPU frequency scaling||Untested|
|Other powersaving features||N/A|
|Nonstandard LEDs||OK||There's a green LED on the board which is enabled when the board is powered-on. Works out of the box, no special coreboot support required.|
|High precision event timers (HPET)||OK|
|Random number generator (RNG)||N/A|
|Wake on modem ring||Untested|
|Wake on LAN||N/A||The on-board ethernet device doesn't seem to support WOL (also not mentioned in the manual).|
|Wake on keyboard||Untested|
|Wake on mouse||Untested|
|Flashrom||OK||Works fine when booted with BIOS and also with coreboot.|
Note: you can use the same target as for A8N_E boards. At the time of writing there's no specific target for A8N5X.
$ svn co svn://coreboot.org/repos/trunk/coreboot-v2 $ cd coreboot-v2/targets $ ./buildtarget asus/a8n_e $ cd asus/a8n_e/asus_a8n_e
Now place your payload in this directory and name it payload.elf. Complete the build with:
The resulting coreboot.rom file (512 KB) can now be flashed using e.g. flashrom.
- The MAC address is stored in flash. All A8N5X boards flashed with coreboot probably have the same MAC address. See src/southbridge/nvidia/ck804/romstrap.inc for details.
If you can help out with this, please join the mailing list and let us know!
|This work is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version. This work is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.|