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Removing eeprom from gtx 570 for flashing

post #1 of 3
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So... Bought a bricked gtx in the hope of finding an easy fix. So installed the card in the comp, fans spins nicely and my mb seems to recognise that there are "something" in the slot. Windows device manger doesn't see anything. Tried nvflash in dos, and also made an usb flashdrive with autoflash and just get the message that there are no nvidia graphics adapter. need to force the bios to use the on board video otherwise it will try to use the dedicated one, and that seems to me like it knows something is there

So took the card out, removed the fan/cooling shroud and looked at it under the microscope. After a few hours of searching i couldn't see anything that was burnt or any problems with soldering.

Hoping someone did a real nasty flash and ruined it to the extent it won't even recognize it anymore, so decided that i will remove the eeprom from the card and check the status of it and reflash it with the original bios in hope to fix it. I'm in no way an expert in theese things so it will be interesting to see how it goes

In case the chip is faulty i need a new one and here comes the problem. On the chip it says:

ATMLH024
S1 3
Z7G0496A

I know its an Atmel chip but u can't search via the numbers cuz the part numbers are very different to the text on the chip itself. So anyone know where i could get one of these or figure out a partnumber for it?

Help would be appreciated. Will make updates as i get some progress. Atleast i can't brick it more than its now
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post #2 of 3
I think the thing you need is just a generic EEPROM device from ATMEL that your GTX 570 supports (meaning it needs to be able to give a read and write command to the PROM). The voltage swing for these chips are normally 2.7V so this one should be compatible:

http://pdf1.alldatasheet.com/datashe...-10SH-2.7.html

LINK

You should make sure that the current chip has 8 pins though. This EEPROM was used on GTX 275s btw. And hey it's like 2 dollar per chip anyways, although I'm not sure that this will solve the problem.

EDIT:

It could be that I missed something though, this guy has a lot of knowledge about MOS devices so maybe he could give some more insight:

Ionimplant

or you could ask a GPU vmodder like tha d0ctor:

http://www.overclock.net/member.php?u=98490
Edited by TheBlademaster01 - 10/28/11 at 1:01pm
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post #3 of 3
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Thanks!
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