Any info on the tweezer method

geetee · Aug 20, 2009

Sapphire Radeon HD 4850 faulty bios,re flash

Tried to flash new bios with ATIflash, but no ATI card detected.
Any info on the tweezer method of re-setting the bios please?
Thank you

fullinfusion · Aug 20, 2009

wow i hear of so many problems from flashing gpu's... I dont have the nerve to try and possibly brick my 4890's...
hope someone can help ya on this matter mate :toast:

erocker · Aug 20, 2009

Never heard of the "tweezer" method. What command are you using for ATiFlash?

geetee · Aug 20, 2009

AtiFlash -ai

Does not see the 4850 at all.

I read bits of info about shorting pins on the bios chip with tweezers!!

Need more info than I can get.

erocker · Aug 20, 2009

Shorting anything out on the card sounds like a horrible idea. With the card you want to flash in the main PCI-E slot, using AtiFlash, at the prompt the command needs to be: a:atiflash -f -p 0 "file.rom"

"file.rom" would be the name of your bios file (no quotations).

geetee · Aug 20, 2009

Will this work if atiflash does not recognise the card ?
Thanks

erocker · Aug 20, 2009

Yes, the -f command is to force flash the card.

kyle2020 · Aug 20, 2009

It should do - thinking about it it should simply force the bios onto the device on PCI-E slot #1, weather its reckognised or not. Someone feel free to correct me like

geetee · Aug 20, 2009

OK

Will give it a go.
Will post results within 48 Hours.
Thanks all

Asylum · Aug 20, 2009

geetee said:
OK

Will give it a go.
Will post results within 48 Hours.
Thanks all

LOL 48 Hours.

fullinfusion · Aug 20, 2009

lol NOW!!!

geetee · Aug 20, 2009

OK Keen ones

IT did not work!!!

fullinfusion · Aug 20, 2009

can you take a pic of the screen with your command's typed in?
That may help us

95Viper · Aug 20, 2009

Yep, I have seen a thread in a forum of this method, but could not locate the original one I read, however, I found this one. Does not sound to safe; sort of, a do at your own risk last ditch effort.

http://www.mvktech.net/component/option,com_joomlaboard/Itemid,34/func,view/id,56058/catid,12/limit,10/limitstart,0/

Frogger · Aug 21, 2009

I believe this is what you are looking for BUT you should do some reading on YOUR eeprom to confirm the pinouts Do this only as a last resort :twitch:

fullinfusion · Aug 21, 2009

Frogger said:
I believe this is what you are looking for BUT you should do some reading on YOUR eeprom to confirm the pinouts Do this only as a last resort

Good read, thank you :toast:

Sir_Real · Aug 21, 2009

Try using an old pci graphics card (You will have to set mobo bios, gpu setting to pci the preset will be PCI-e). Leave the dead hd4850 in the main PCI-e slot. That way ATIflash should still see your dead hd4850. Flash the factory preset bios back in & leave it alone

overclocking101 · Aug 21, 2009

that teezer ,ethod seems like a handy tool for bricked cards that cannot be rma'd nice

geetee · Aug 21, 2009

OK

HI will read up on that Thank you

Meanwhile here are some pics of the failed detection:

geetee · Aug 21, 2009

MMM...

Another bad purchase me thinks.

Thanks all

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Any info on the tweezer method

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