Difference between revisions of "Board:asus/a8n e"

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===Before you begin===
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== Before you begin ==
  
The Asus A8N-E is a Athlon64 Socket 939 board (nforce 4 ultra) with socketed BIOS sold around €120 (mostly out of stock in 8/2007) (used items at ebay ~ €20-35 possible). It already boots LinuxBIOS. Latest legacy BIOS is from May 2006 v.1013. Socket 939 Athlons do not have Pacifica Virtualization.
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The '''Asus A8N-E''' is an Athlon64 Socket 939 board (nforce 4 ultra) with socketed BIOS sold around €120 (mostly out of stock in 8/2007; used items at eBay ~ €20-35). It already boots LinuxBIOS. Latest legacy BIOS is from May 2006 v.1013. Socket 939 Athlons do not have Pacifica Virtualization.
  
The plcc32 BIOS chip is of type   SST 49LF004B of which you need a spare pre-programmed piece.
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The PLCC32 BIOS chip is of type SST 49LF004B of which you need a spare pre-programmed piece.
  
[[Image:Chip_lb.png|thumb|flash type 4 Mbit SST 49LF004B]]
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[[Image:Chip_lb.png|thumb|Flash type 4 Mbit SST 49LF004B]]
  
A8N-sli deluxe, an "nforce 4 sli" board probably shares the same pcb design with more solder pads populated (pls cnfirm), and is also out of stock mostly.
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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.
Supporting more recent A8N boards is considered, but there is no confirmation about any one already [[Desktops|finished]]. '''A8NE-FM/S''' has initial support in the source tree. Biostar NF4-A9A (socket 939) also has ITE 8712F i/o and CK804 chips as the ASUS and is still being sold around 35€.
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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.
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The '''ASUS A8NE-FM/S''' has initial support in the form of [http://www.linuxbios.org/pipermail/linuxbios/2007-July/023029.html a patch].
  
8 MBit SST 49LF080A was also successfully flashed and booted with legacy BIOS (two images concatenated).
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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).
  
===known issues===
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== Known issues ==
currently PS/2 keyboards do not work, but USB keyboards do.
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single DIMM support only
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* Currently PS/2 keyboards do not work, but USB keyboards do.
 
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* Single DIMM support only.
 
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* 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.
The MAC address is stored in flash for almost all CK804/MCP55 boards.
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All of these boards flashed with LB probably have the same MAC address.
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See src/southbridge/nvidia/ck804/romstrap.inc and
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src/southbridge/nvidia/mcp55/romstrap.inc for details. On some of these
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boards, the MAC address is stored in a separate EEPROM, but you can't
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count on that.
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===Payload===
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===Building the payload===
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===Your menu.list entry===
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===Current status of the LBv2 tree===
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===Building LinuxBIOS===
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===Burning LinuxBIOS===
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===Running LinuxBIOS===
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===Help?===
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===TODO===
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== TODO ==
  
 
If you can help out with this, please join the [[Mailinglist|mailing list]] and let us know!
 
If you can help out with this, please join the [[Mailinglist|mailing list]] and let us know!
  
 
{{GPL}}
 
{{GPL}}

Revision as of 14:46, 13 September 2007

Before you begin

The Asus A8N-E is an Athlon64 Socket 939 board (nforce 4 ultra) with socketed BIOS sold around €120 (mostly out of stock in 8/2007; used items at eBay ~ €20-35). It already boots LinuxBIOS. Latest legacy BIOS is from May 2006 v.1013. Socket 939 Athlons do not have Pacifica Virtualization.

The PLCC32 BIOS chip is of type SST 49LF004B of which you need a spare pre-programmed piece.

Flash type 4 Mbit SST 49LF004B

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).

Known issues

  • 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.

TODO

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

GNU head 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.