[coreboot] Re unsuported Motherboard

Joao Mamede forevertheuni at gmail.com
Mon Mar 1 23:09:46 CET 2010

Hello Again,
So the BIOs chip is not socketed. It's soldered into the motherboard.
There is a sticker in the motherboard that has: 686 AMIBIOS NB 1999 BJ00 
So I guess next step will be to unsolder the Bios and solder a socket to 
plug in a BIOS and buy a BIOS external  writer. Can I have 
recommendations on where to buy?(Europe zone would be preferable for me).

Thanks again

Joao Mamede wrote:
> On 1/4/10 12:17 PM, Joao Mamede wrote:
>> / Hello I want to use coreboot in an old laptop (in order to
> />/ replace/upgrade a fried graphics card).
> />/ Both the southern and northernbridges are suported
> />/ The laptop is the A8js from asus.
> />/
> />/ Here's an lspci
> />/ 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS/940GML and
> />/ 945GT Express Memory Controller Hub (rev 03)
> />/ 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface
> />/ Bridge (rev 02) /
>> /
> />/ I can't find a socketed bios in the motherboard...so I guess I have
> />/ one try.
> />/ Can anyone help me out in making a target build(I wouldn't bother you
> />/ and try to do it myself if I had more than one chance).
> />/ It's either make it work and make me happy, or put the laptop in the
> />/ garbage..independently of frying the bios or not.
> />/ Thank you
> /
> Chances are good to get coreboot running on this laptop, its components
> seem to be mostly supported by coreboot. However, the chance of getting
> everything working on the first try are zero. The chances to get the
> system at least to boot on the first try and always keep the system in a
> working, updatable state are almost zero, too. So if you attempt to port
> coreboot to this machine, you will need to create some kind of recovery
> mechanism. You could solder a socket to the mainboard, or a plug to
> reflash the machine externally.
> However, to get started, I suggest that you find out what flash chip you
> have on the board, so you can determine what recovery mechanism is
> suitable. (The flashrom utility from www.flashrom.org will help you with
> that)
> Also, a dump of superiotool -ed will help you a lot. Does the machine
> have a serial port?
> Stefan
> The machine has no serial port. I think it's a socketed bios(from the 
> pics of the disassembly tech manual). However I have to disassemble 
> everything in order to acess the BIOS
> Is there a way to plug a chip that has a wire coming to the outside to 
> a machine that contains or  the BIOS chip or and emulation of one?
> I'll do all the dumps, etc and post here again.

More information about the coreboot mailing list