BIOS for HIS GeForce2 MX400

[pfrcom]

One of these I've acquired, looks fine cosmetically, but doesn't work with two different motherboards

I suspect its BIOS has been corrupted

Can anyone provide a BIOS file for HIS GeForce2 MX400 64MB AGP, or any comparable graphics card ?

It's an SDRAM card, judging by its HY57V281620HCT-H memory chips

[pfrcom]

Re: BIOS for HIS GeForce2 MX400

Does anyone have this card, or similar, and could make a copy of its BIOS for me ?

[pfrcom]

Re: BIOS for HIS GeForce2 MX400

I may have found what I need here ...

http://www.nodevice.ru/searchres1_p1...4mb+winxp.html

... but can't navigate the hoops necessary to jump, in order to download

Could a Russian speaking member help me out please, and download the three 0.03 Mb BIOS files (TV-out not required)

[Uranium-235]

Re: BIOS for HIS GeForce2 MX400

I dont' see one for HIS

[pfrcom]

Re: BIOS for HIS GeForce2 MX400

Nothing special about the card - I suspect the first file there might do the trick for me

[pfrcom]

Re: BIOS for HIS GeForce2 MX400

Found some files to try - watch this space

[pfrcom]

Re: BIOS for HIS GeForce2 MX400

I might be out of luck with this

Its BIOS chip is SST 27SF010

NVFLASH tells me Nvidia card not detected

Uniflash doesn't seem to support 27SF010

And it's soldered direct, not socketed - so no easy options

[stj]

Re: BIOS for HIS GeForce2 MX400

http://www.flashrom.org/Flashrom

[pfrcom]

Re: BIOS for HIS GeForce2 MX400

http://www.flashrom.org/Flashrom

Thanks for the suggestion, but SST 27SF010 isn't shown as supported

Nevertheless tried "flashrom -p gfxnvidia" after installing Flashrom in Ubuntu 12.02

Got "Error: No supported PCI device found"

Seems like the only way would be desolder the SST chip, and sub in a preprogrammed 39SF010 or 39SF512

[stj]

Re: BIOS for HIS GeForce2 MX400

i think the 27sf series isnt really flash.
the prefix makes me think it's an eeprom.

[pfrcom]

Re: BIOS for HIS GeForce2 MX400

i think the 27sf series isnt really flash.
the prefix makes me think it's an eeprom.

That's why I had a sinking feeling, when I first peeled the BIOS label off

The chip does have MTP on it, which I believe is Many-Time Programmable - as you've said, EEPROM

Chances are the previous owner tried to update its firmware - and NVFLASH erased the chip, then couldn't reprogram it

[stj]

Re: BIOS for HIS GeForce2 MX400

probably,
eeproms like that are usually bulk-erase and program.
not sector based like flash.

maybe it needs a VPP higher than 5v

[Th3_uN1Qu3]

Re: BIOS for HIS GeForce2 MX400

If it's EEPROM there is a good chance it requires a 12v Vpp, indeed.