Vmod 3850 through BIOS apparently IS possible....

[Bo_Fox]

I have a Powercolor Xtreme 512mb but the retail bios was a HIS 067, that's why i tried your bios. With retail bios i can't overclock 1Mhz even with CCC. Is atitools accurate for artifacts scan? Cause that's how i found a 763 mhz core limit and i didn't tried anything higher than that, should i?

Strange! Yeah, doesn't hurt to give it another try if you only tried once. One time when overclocking my Barton (Athlon XP-M), it was stuck at 2.6 GHz for a month and then I tried again later on and it could do 2.7 GHz!

[KarwaPL]

How do U attach files to your posts ? :-)
I know LOL
Regards

[KarwaPL]

Ok here my Asus 3850 512MB bios :-) Could anyone modify voltage to 1,3V ?
Would be apreciated :-)
Thx

[lowtcell]

I had to back off to 770/1000 because the ati driver crashed every 15 minutes playing COD4. Prety stable after that.

PS
ATI Overdrive has not worked since the flash. I can start it up and it just sits at the default clocks until I cancel.

[zuelber]

Strange! Yeah, doesn't hurt to give it another try if you only tried once. One time when overclocking my Barton (Athlon XP-M), it was stuck at 2.6 GHz for a month and then I tried again later on and it could do 2.7 GHz!

For sure i'll try again but i want to know how you guys scan for artifacts, with atitools or just run 3Dmark and watch it crash when not stable lol

[robbot]

GenTarkin

Can u post bios for HD 3850 256MB

385/ 925

thx a lot

[Kane]

Would someone mod my original MSI HD 3850 256Mb BIOS to 760|1000? The card comes clocked @ 690 and is capable of the first mentioned OC.

MSI HD 3850 OC 256Mb BIOS
http://members.cox.net/malficar2/MSIhd3850

I would really appreciate a modified bios for this card. The speed could be stock or what Blacklash wants, but would love some extra voltage for it

[Bo_Fox]

For sure i'll try again but i want to know how you guys scan for artifacts, with atitools or just run 3Dmark and watch it crash when not stable lol

Yeah, both are great. Or just play your favorite game (nearly all popular games released in the last couple years will stress your video card fairly well).

[robbot]

GenTarkin

Can u post bios for HD 3850 256MB

385/ 925

thx a lot

[okorn]

Got a Diamond HD3850 256Mb...does it works? Some tried it?

Which voltages are changed? Core or mem o both?

[Stoner@Large]

Can anyone mod the 760/950 bios from this site to have more voltage on 3d only?

http://www.iax-tech.com/video/3800biosmod/03.htm

Bios works great for me and allows ccc to overclock to 900/1150.

With that bios ive been able to pc to 770/1140 so I figured with a little more voltage I can get the core a little higher.

Thanks again.

[TI66ER]

hello,great work on these bios's guys

Could you mod my bioss with 1.33v 3d and 760mhz core and 950mhz mem please?

Is it possible to remove the 860mhz limit too?

Thanks
tigger

[swaaye]

What's with these "Xtreme" folks that are scared of a hex editor? lol

[Stoner@Large]

i tried the hes editor and almost lost both cards. luckily i have my mx400 pci card as backup for bad flashes.

I really need a bios with more voltage, unlocked and has high ccc oc options. All the ones ive tried are only one or the other. the one from

http://www.iax-tech.com/video/3800biosmod/03.htm

works great but im sure I could get higher clocks on the core if it had more voltage.

edit: Does overdrive stop working for everyone and these modded bios's? I really need overdrive to clock my cards in crossfire. I cant seem to clock both of them with anyother program. Im running vista 64 so only clocking with overdrive works.

edit again: I guess the bios in that link is a locked bios. all the unlocked bios's Ive tried max out at 730/1010 in ccc. is there any unlocked bios's that go higher?

[robbot]

GenTarkin

Can u post bios for HD 3850 256MB

385/ 925

thx a lot

[swaaye]

You folks would be better off waiting for MVKTech to get the new version of RaBIT out so it's easy to edit the BIOS. I've had little luck getting more of an overclock by changing the BIOS voltage anyway. 770 MHz is about all I can do on my 3850 X-Turbo III, even with the BIOS set for 1.312v. It only gets you 1.28v (~ +0.06v) or so anyway.

Overdrive stops working yes. I think a checksum fix might get around that, but I haven't been able to figure out how to fix up the checksum.

Go pester the folks at MVKTech for me. Maybe they'll get more motivated to finish RaBIT.

http://www.iax-tech.com/video/3800biosmod/03.htm
works great but im sure I could get higher clocks on the core if it had more voltage.

They made those BIOS files with the official AMD editor. Who knows how they got that. Another 0.06v on the core might help you a tiny bit, but a pencil mod would do even better. Of course, you're getting into scary territory if you push it out of spec. I fried a Radeon 9700 doing that years ago and don't go there anymore because of that.

[TI66ER]

w1zzard on tpu said you CANNOT get more than 1.3v by a bios edit.It can only be done by hardware.The 3870 has 1.33 stock anyway,but the 3850 is 1.24v.I tried a modded bios and it was only 1.28v in 3d mode.The only way is a pencil or trimmer mod.

[robbot]

Can anybody bios for HD 3850 256MB

385/ 925 with changed only 3d voltage

thx a lot

[Stoner@Large]

Can anybody bios for HD 3850 256MB

385/ 925 with changed only 3d voltage

thx a lot

Someone please help this guy

http://www.xtremesystems.org/forums/...archid=5161548

[Blacklash]

I would really appreciate a modified bios for this card. The speed could be stock or what Blacklash wants, but would love some extra voltage for it

If you want a BIOS that removes the 730 Overdrive clock limit on the card our buddies @ MSI set try the Powercolor or Sapphire BIOS below-

http://www.mvktech.net/component/opt...tfolder/cat,1/

I'd like to find a BIOS that causes the fan speed to increase when the card heats beyond 80C. Right now my fans stay @ 25%. I can manually push them up with Rivatuner though. If they moved to about 50-55% @ 75-80C that would be nice.

[G.Foyle]

Ok here my Asus 3850 512MB bios :-) Could anyone modify voltage to 1,3V ?
Would be apreciated :-)
Thx

Karwa, it'd be best if you flashed ASUS card with Sapphire's bios, it's in newer version (071) and lets you clock above 862MHz. They both use the same PCB and memory (I checked) and Sapphire bios works on ASUS (I checked, too)

Here's Sapphire bios modded to 1.327V and with 2D clocks disabled:
http://profide.eu/files/karwa.zip
I have measured power consumption before and after flashing, and disabling 2D clocks does nothing. Power consumption is still ~230-240W when cards are idle (cpu loaded).

Powodzenia z flaszowaniem

[Fepunk]

hello,great work on these bios's guys

Could you mod my bioss with 1.33v 3d and 760mhz core and 950mhz mem please?

Is it possible to remove the 860mhz limit too?

Thanks
tigger

i want the same as this guy !! if possible put the 0.9v in 2D mod pls !!

[Stoner@Large]

has anybody compaired the manufacturers bois that have different clocks and see what they did to keep overdrive working?

like say a 71 bios from HIS and a 71 bios from powercolor that have different stock clocks

[Barr3l Rid3r]

For sure i'll try again but i want to know how you guys scan for artifacts, with atitools or just run 3Dmark and watch it crash when not stable lol

Fala rapa, adiciona ai no msn robertosobral@msn.com

[robbot]

Can anybody bios for HD 3850 256MB

385/ 925 with changed only 3d voltage

thx a lot