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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 LinuxBIOS on the ASUS A8N-E board.
|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|
|DDR||OK||Tested with one DIMM in slot DIMM_B1 (see manual).|
|Dual channel support|
|On-board IDE 3.5"|
|On-board IDE 2.5"||N/A|
|On-board USB||OK||Tested: USB keyboard (on each of the 10 possible USB ports).|
|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||OK||Tested: PCI VGA card in all three PCI slots.|
|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|
|PCI Express x2 add-on cards||N/A|
|PCI Express x4 add-on cards|
|PCI Express x8 add-on cards||N/A|
|PCI Express x16 add-on cards|
|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|
|Other powersaving features|
|ACPI||No||There's no ACPI implementation for this board.|
|High precision event timers (HPET)|
|Random number generator (RNG)|
|Wake on modem ring|
|Wake on LAN|
|Wake on keyboard|
|Wake on mouse|
|Flashrom||OK||Works fine when booted with BIOS and also with LinuxBIOS.|
Before you begin
The PLCC32 BIOS chip is of type SST 49LF004B of which you need a spare pre-programmed piece.
The ASUS A8N-SLI Deluxe, an "nforce 4 sli" board probably shares the same PCB design with more solder pads populated (please confirm), and is also out of stock mostly.
The ASUS A8NE-FM/S has initial support in the form of a patch.
Hot plugging a BIOS chip was successfully done (pull out chip with glued-on handle while running Linux), so you don't necessarily need an external EPROM programmer, just a spare working 49LF004 chip. 8 MBit SST 49LF080A was also successfully flashed and booted with legacy BIOS (two images concatenated).
- Currently PS/2 keyboards do not work, but USB keyboards do.
- Single DIMM support only.
- The MAC address is stored in flash for almost all CK804/MCP55 boards. All of these boards flashed with LB probably have the same MAC address. See src/southbridge/nvidia/ck804/romstrap.inc and src/southbridge/nvidia/mcp55/romstrap.inc for details. On some of these boards, the MAC address is stored in a separate EEPROM, but you can't count on that.
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.|