How to Modify Your HD2900 BIOS Clock Frequencies by Hex File

[ownage]

Does this new version of atiflash work on abit motherboards??

Doesn't work!

[keenan]

Crysis work flawlessly on DX9 mode with Modded very high setting when you overclock.

Is there any way to flash my card in windows...?

Does anyone have a HIS 2900XT 512mb DDR3 bios with modded Voltages...?

[Truckchase!]

Crysis work flawlessly on DX9 mode with Modded very high setting when you overclock.

Is there any way to flash my card in windows...?

Does anyone have a HIS 2900XT 512mb DDR3 bios with modded Voltages...?

Oddly enough, Crysis is more stable for me at higher clocks than BF2142 and UT3. I've got to take my core down for UT3 and my mem down for BF2142.

Don't flash your card in windows. Just don't..... You'll regret it after the card dies.

I've got a modded bios for my HIS 2900xt, but I have the clocks up to 920/920 for the stock 3d OC. Probably not good to share....

[003]

Doesn't work!

[keenan]

I've got a modded bios for my HIS 2900xt, but I have the clocks up to 920/920 for the stock 3d OC. Probably not good to share....

Whats your 3d voltages at those clocks...?

By all meens, share please

One more thing, I dont have a floppy drive, how will I flash it...?

[ownage]

One more thing, I dont have a floppy drive, how will I flash it...?

http://www.techpowerup.com/articles/...g/vidcard/34/5
Make a bootable USB stick

[JamesBong420]

i have flashed a his 2900 pro into an XT on an ABIT ip35-pro, usb flash, works great. im tempted to make a new bios with better 3d clocks.

edit:

just modded the xt bios that was on there. and it gets the same thing ownage gets. shall i modd a pro bios?

edit2: nvm both an edited pro and an edited xt doesnt work. trying quannum

[JamesBong420]

quannum work fine. but when i use the editor to look at the quannum bios it says 1.15 as the volts. lol something isn't right on the editor.

[ownage]

quannum work fine. but when i use the editor to look at the quannum bios it says 1.15 as the volts. lol something isn't right on the editor.

That's right, i had the same thing.
But a Quantum Force bios works? DB87 modded a quantum bios, but even that one doesn't work for me. I'm sure this is just some f*ckd-up ABIT problem!

[G H Z]

quannum bios it says 1.15 as the volts.

1.16V is the stock 3D voltage (1.0V 2D) on these cards, there's nothing wrong with the editor.

Doesn't work!

I get the missing info on every flash but all the BIOS's work fine.

[ownage]

1.16V is the stock 3D voltage (1.0V 2D) on these cards, there's nothing wrong with the editor.

He means the lowest Quantum bios is modded to 1.25v. If you open any modded bios made by the Quantum editor you can see its raised to 1.2v or 1.3v or whatever. Only if you open a Quantum-force bios which delivers 1.3v its recognized as 1.15v in the editor.

I get the missing info on every flash but all the BIOS's work fine.

Ok, thnx for the info. I wonder what goes wrong then

[G H Z]

He means the lowest Quantum bios is modded to 1.25v. If you open any modded bios made by the Quantum editor you can see its raised to 1.2v or 1.3v or whatever. Only if you open a Quantum-force bios which delivers 1.3v its recognized as 1.15v in the editor.

I don't know what these are. Why not make your own based on your stock Pro BIOS or a stock XT BIOS? I've flashed a Pro with modded clocks/voltages using the editor a bunch of times, they all work for me. Let me know if you want one.

[ownage]

I don't know what these are. Why not make your own based on your stock Pro BIOS or a stock XT BIOS? I've flashed a Pro with modded clocks/voltages using the editor a bunch of times, they all work for me. Let me know if you want one.

I allready did that , but that's not the problem i think.
There are now 4 guys who have this problems, and they all use Abit boards. I think that has someting to do with it, because if i mod my original bios it still gives me problems.

[G H Z]

Did you re-install your drivers after flashing?

[JamesBong420]

i can use any of the quantum bioses perfectly fine. try the 880d950 one. works great for me now. 1.25v 3d 1.1v 2d


also what i was trying to say earlier was.. when i open the 880d950 bios in the editor it shows 1.15 volts. i have my original bios and it doesn't seem to work when i change the volts. works fine when i change the clocks but not the volts..

[003]

Did you re-install your drivers after flashing?

That would be tough since there is zero video signal after the flash.

What the **** is going on with these abit boards?! We need a fix!

[G H Z]

Did you guys with problems enumerate the adapters? The target device to flash is device 0 correct? (most likely yes if it doesn't work after the flash but still...)

003 have you tried pulling the card and clearing CMOS after the flash? Or trying the card in another rig?

[TouGe]

DX10 games don't like overclocks for some reason, I had the same problem with Lost Planet in DX10. And I imagine it would be the same with GOW DX10 and others.

Np I have a feeling that Dx9 will work fine!
I await your results

Yup, you were correct. Crysis works fine at 840/1165 in Dx9.

Looking for some input here. When running 850MHz/1100MHz @ 1.2V I can pass multiple loops of HDR/SM3.0 graphics tests (Canyon/Deep Freeze) but my computer locks up almost immediately when running SM2.0 graphics test (firefly forest), is there a reason I can pass SM3.0 tests multiple times but can't even get going on a SM2.0 test? With everything else 850MHz/1100MHz is stable, as far as I can tell.

[keenan]

I have got the same problem, can run Crysis @ 850/1200 but PC freezes in Need for speed carbon

What is the default 3D voltage on these cards... mine seems to be 1.20V

Can someone please upload a HIS 2900XT 512mb DDR3 bios with 1.3V on 3D

[Don Quichote]

First try got a black screen after flashing with a modified Bios of my Pro.

After learning something about Hex-Editors , I got it to work like this:

modified Bios as I need

went into cmd and found out checksum with atiflash (atiflash -cf bios.bin)

opened Hex-editor and searched for some empty space (00 00 00 00)

entered what i need to get to my checksum ( e.g. if i get a checksum for the orig.bios of 0x8B00, but my modified file has 0x8A9B; I overwrote some zeros with 65 (0x0065) and as result got again to a checksum of 0x8B00)

Hope I explained it right, as I dont´t really know what I´m doing here. But after editing to the correct checksum, I even don´t need the -F option to flash.

I´m now running my Sapphire 512 MB Pro with Bios 2D 400/400 @ 0,9V, 3D 793/927 @ 1,2 V.

3dmark06 runs up to 850/1000
Crysis runs up to 793/1000 (over 793 core some strange flashing when smoke appears)
Hellgate an NFS Pro Street would both run the core up to 850, but doesn´t allow the VidRam to run more then 927

Perhaps I could get it higher with more power, but as I´m running stock cooler I think 793/927 ist nice for me.

Forgot to mention: runnig Vista DX10

[003]

Do you have an abit motherboard??

[super dank]

opened Hex-editor and searched for some empty space (00 00 00 00)

entered what i need to get to my checksum ( e.g. if i get a checksum for the orig.bios of 0x8B00, but my modified file has 0x8A9B; I overwrote some zeros with 65 (0x0065) and as result got again to a checksum of 0x8B00)

^^^^ A ludicrous suggestion; don't try it. This will easily brick your card, and youl'll need another adapter to re-flash.

I think most ppl are using the editor now anyway.

[Don Quichote]

Yes, an ABIT AN8-U. Had the same problem that after flashing modified bios, no adapter information for the new bios were displayed and it didn´t work. The same bios only with corrected checksum works, atiflash also displays adapter information after flashing (took my orig Bios to modify).

[Truckchase!]

Can someone please upload a HIS 2900XT 512mb DDR3 bios with 1.3V on 3D

Attached is from a HIS XT 512MB, 1.3v 3d and 870/870 clocks.

[keenan]

Attached is from a HIS XT 512MB, 1.3v 3d and 870/870 clocks.

Strange thing tho, with my default bios, I can get 875/2490 dont know if this is max memory, but that is as high as rivatuner goes

But with your bios I can only do 900/2000. Anything above 900mhz core and my pc would freeze and anything above 2000mhz on the memory gives nice red artifacts

So, does my bios relax the memory timings or does it have a higher voltage on the memory..?

Seems odd that it gives a 500mhz boost in memory clocks