Anyone be able to hexedit my HD3850 BIOS?

[ghost recon88]

I have a Diamond HD3850 512MB card, and I want to mod the BIOS to 1.33 volts, and if at all possible remove the 850MHz overclocking limit. Can anyone help me with this? Thanks

 

[Univac]

If you get one,

Please Share !

 

[ghost recon88]

Do you have a Diamond card?

Edit1: Well I just successfully flashed my Diamond BIOS to a Sapphire one, a lot of cards won't accept other manufactures BIOS because it does a checksum compare. This Sapphire BIOS has the overclocking limit removed, so now if someone could just mod it

 

[Univac]

Originally posted by: ghost recon88
Do you have a Diamond card?

Yup!

I did a little looking and couldn't find anyone talking about these cards and modded bios's.

All of them seem to be for the reference ones.

I am not a huge gamer,and this card does do what I need it to...

But I am a little disappointed that I can only get the core to about 725 or so before atitool shows artifacts and driver re-starts in ut3.

I couldn't get atitool itself to change the clocks,I had to change them with rivatuner,then use the checker in atitool.

The memory on mine is

Samsung 746

K4J52324QE-BJ1A

It seems to max out at just over 1000.

the hightest temp I've seen is 65c,so I think it is just a volts thing.

 

[ghost recon88]

Ok, I have that exact same memory. I just flashed this Sapphire 3850 512MB BIOS to my card, and it worked. I'm currently having someone voltmod it, but Sapphire removed the overclocking limit on it. I searched to see if anyone had modded the native Diamond HD3850 BIOS yet, but no one has. Heres that Sapphire BIOS, http://www.ocforums.com/attach...tid=62162&d=1200859553

 

[Univac]

Originally posted by: ghost recon88
Ok, I have that exact same memory. I just flashed this Sapphire 3850 512MB BIOS to my card, and it worked. I'm currently having someone voltmod it, but Sapphire removed the overclocking limit on it. I searched to see if anyone had modded the native Diamond HD3850 BIOS yet, but no one has. Heres that Sapphire BIOS, http://www.ocforums.com/attach...tid=62162&d=1200859553

Thanks for taking the chance and finding out the sapphire bios works.

I found a modded version with 3870 voltages.

Have to do some more reading on the flashing process and I may give it a shot.

(Haven't flashed a video card since the 9700's)

 

[ghost recon88]

Originally posted by: Univac
I found a modded version with 3870 voltages.

Have a link to it? I found one too that was a Sapphire, but it didn't work when I flashed it, it simply came up with a blackscreen afterwards.

 

[Univac]

It's probably the same one you found.

I haven't had the opportunity to keep reading to see if anyone has has success.

Not sure how to link to it,but it is on this page

 

[ghost recon88]

Yep thats the one I tried. However that HIS one here looks tasty, I'll give it a spin and see if it works with our Diamond cards.

http://www.xtremesystems.org/f...p=2647174&postcount=89

 

[Engineer]

Originally posted by: ghost recon88
Yep thats the one I tried. However that HIS one here looks tasty, I'll give it a spin and see if it works with our Diamond cards.

http://www.xtremesystems.org/f...p=2647174&postcount=89

Damn, you guys have b@lls to do that kind of stuff! :shocked:

 

[ghost recon88]

Just flashed my card with that HIS one, and its working fine.

 

[Engineer]

Originally posted by: ghost recon88

Originally posted by: Univac
I found a modded version with 3870 voltages.

Have a link to it? I found one too that was a Sapphire, but it didn't work when I flashed it, it simply came up with a blackscreen afterwards.

If it blackscreened, how did you "unflash" it?

 

[Univac]

If it blackscreened, how did you "unflash" it?

It's been a while, but If i remember right.

The pc will still post,so you can blind flash it.

Boot into dos and type away,
or

You can put in a pci video card and use it's output so you can see what your doing.

I am however, more than happy to let Ghost recon88 live up to his screen name ,and check it out before I try it

 

[Engineer]

Originally posted by: Univac

If it blackscreened, how did you "unflash" it?

It's been a while, but If i remember right.

The pc will still post,so you can blind flash it.

Boot into dos and type away,
or

You can put in a pci video card and use it's output so you can see what your doing.

I am however, more than happy to let Ghost recon88 live up to his screen name ,and check it out before I try it

I don't know about the blind method, but I do recall the above method. I've done some crazy motherboard flashes (boot up system, remove bios after booted, insert screwed up bios chip from another system and flash, shut down) but not a video card.

 

[Univac]

While the HIS bios did load on ok, I still couldn't get any higher on the core freq.

SO I tried editing the bios.

It says it's set to 1.3 in riva tuner,but it still doesn't go any higher

I am not a pro with hex editing at all..

So if someone has found a way to get their card over 740 mhz for the core,

Please Post how you did it.

 

[ghost recon88]

I got mine flashed and up to 750/1000. 1.3 is as high as you can go without hardmodding the card, due to the stupid regulator cap ATI put on there. If you're gutsy you can remove it, but I haven't tried yet on my card since its for sale.

 

[taltamir]

Originally posted by: Engineer

Originally posted by: Univac

If it blackscreened, how did you "unflash" it?

It's been a while, but If i remember right.

The pc will still post,so you can blind flash it.

Boot into dos and type away,
or

You can put in a pci video card and use it's output so you can see what your doing.

I am however, more than happy to let Ghost recon88 live up to his screen name ,and check it out before I try it

I don't know about the blind method, but I do recall the above method. I've done some crazy motherboard flashes (boot up system, remove bios after booted, insert screwed up bios chip from another system and flash, shut down) but not a video card.

now THAT is cool! You deserve your name engineer.