How to Modify Your HD2900 BIOS Clock Frequencies by Hex File

[super dank]

well so far for me and few others it worked that way...

Well ill be dashed

I see others have already confirmed, but I just tried it and yes, it works

Thanks for being the one to test it. I certainly wasn't going to risk bricking my cards.

Thanks for all the positive remarks from everyone, it seems that this has been nailed right on the head, happy modding

[roger_h99.nor]

It works, confirmed as well.
Upped the voltage on Powerstate 2 & 3 to 1.300 V.

Think I also found the place for Vram and Vddq in the bios - but I dont see any application for this yet.

btw, does anyone know the difference of Powerstate 0 (boot) and Powerstate 1 (2D) ? Why there is two?

[ChkDsk]

Dear gods This sounds great! I'm sure lot of people are waiting to see a simple RaBit clone or something. And so am I This also works on a 1GB version btw?

[eXceeded]

it hasn't helped my overclocks at all though . Infact the higher the voltage the more unstable it gets, I'm on watercooling and the gpu never gets hotter than 60oc... Realy annoys me, if this is another one of my things that I have that can't overclock I will be seriously pissed off...!

[[XC] Hicks121]

Is the Vregs gettn too hot? That would spoil the oc.

[super dank]

it hasn't helped my overclocks at all though . Infact the higher the voltage the more unstable it gets, I'm on watercooling and the gpu never gets hotter than 60oc... Realy annoys me, if this is another one of my things that I have that can't overclock I will be seriously pissed off...!

Ya, did you leave the fan and red metal peice on for the volt regs?

I'm not done overclocking yet, but so far 900 and 925mhz xfire is working great

[TouGe]

Wow, this is a really cool find. I've been waiting forever for a new RaBit version to OC my cards but maybe now I won't need to wait any longer. I'll give this a shot over Tanksgiving.

[eXceeded]

Oops... lol . Sounds like a weekend job since I have to find the missing pieces :O

[The Mutt]

Could someone mod my bios? I want 1.3Vgpu and thats it Here's a link http://www.techpowerup.com/vgabios/9...512.070416.bin

Thank you!

[roger_h99.nor]

Here is my bios, fresh from the floppy Ordinary XT bios, only difference is 1.30V in 3D mode.

[2D: 507/514/1.00V]
[3D: 743/828/1.30V]

(It's a Sapphire 512MB card).

Unzip first. Confirmed working for me, but flash at own risk.

[GLENBOY]

have you tried 1.35 volts roger i see on tech pwerup forum someone has succesfully been running it at that on there good work

[roger_h99.nor]

No, not yet, but will (1.30 not tested to the max yet, but looks like card is benchable around +900 somewhere. (3DMark06 crashes at 930)

Watercooled, mind you.

[Severance]

Alright fellas just consider me a newb What the heck did i do wrong? core clocks are fine but as you can see mem clocks went for a crap Im using roger h99 moded bios Help this newb out please

[W1zzard]

any good coder out there who would be willing to work on a bios editor project? i dont have the time myself to start another one but can certainly help out with bios format info etc.

[Athens[2004]]

Here is my bios, fresh from the floppy Ordinary XT bios, only difference is 1.30V in 3D mode.

[2D: 507/514/1.00V]
[3D: 743/828/1.30V]

(It's a Sapphire 512MB card).

Unzip first. Confirmed working for me, but flash at own risk.

Thnx i will flash mine [sapphire 2900pro 512 watercooled. ] and i report some 3dmarks or the black screen of death .

[Martin.v.r]

why not mod the PRO bios ? the XT bios

[roger_h99.nor]

Alright fellas just consider me a newb What the heck did i do wrong? core clocks are fine but as you can see mem clocks went for a crap Im using roger h99 moded bios Help this newb out please

You DO HAVE the 512MB version, right?
What does Rivatuner show?

CCC sometimes does strange things after a flash - try to reinstal.

Hope it helps.

[TouGe]

any good coder out there who would be willing to work on a bios editor project? i dont have the time myself to start another one but can certainly help out with bios format info etc.

It would be nice if someone could code another BIOS editor. It seems that RaBit is a dying project. I don't have the skills to do this kind of work but wouldn't mind donating some funds through paypal to help out.

[roger_h99.nor]

Before going 'banans' with a HEX editor I suggest you all have a look at this page: http://forums.techpowerup.com/showth...t=44968&page=2 (post 48)

Haven't tried it myself, but i trust Shamino's skills

Only reason to HEX edit should be if we want to alter the Vgpu in 2D.

[Severance]

You DO HAVE the 512MB version, right?
What does Rivatuner show?

CCC sometimes does strange things after a flash - try to reinstal.

Hope it helps.

Yes i have 512 vers. Riva shows same. CCC is showing correct i know this cus system crashes instantly on any 3d app. Why does superdank show 0000AE16 and for me its 0000AE10? Thanx for your help.

[roger_h99.nor]

Strange..
I did not alter anything except 3D Vgpu in 'XTMOD.BIN'.

Bios gives me 828Mhz RAM in 3D mode.

Have a look at my previous post - this may help you out.

[TouGe]

Thanks for the link

[pcfreak]

Thanks for the link Roger
Bad thing is I'm still waiting for my mobo to return from rma so I cannot test

those who tried higher vcore please report vreg temps

[Athens[2004]]

roger_h99.nor@ the folder contains only the xtmod.bin file , cant flashed with atiwinflash cause the prog requires the vbios image [rom?]

help!

[roger_h99.nor]

I've done crazy things in my life, but NEVER dared to flash from Win..

Strongly recommend flashing from DOS (floppy or USB boot disk).

If you insist using winflash, I imaging it's just to rename to *.ROM.