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How to Mod GeForce FX5900 to full FX5950 Ultra

post #1 of 12
Thread Starter 
Here is a few Steps how to mod Your FX5900 to full FX5950 Ultra

[Step 1] Down clock your system and video card. If you have anything overclock, be sure to clock it back to factory defaults.

[Step 2] Select and download the correct bios. Almost every manufacturer that produces a 5900 card also makes a 5950u. The most logical choice would be to use the 5950u bios from your card's manufacturer. In our case, we will be using the Leadtek "A380 Ultra" bios. It appears that so far, all cards flashed will accept the Leadtek A380 Ultra bios.

[Step 3] Unzip the zip file and place the files on a DOS boot disk(Not recomended using CD-R). In our case the zip file contains a "read me" and 3 files. I unzipped these files to my desktop and renamed the A380U_2978.ROM bios file to A380U.ROM, as this is easier to remember and type later. Now create a DOS boot disk, if you don't have one already. With Windows XP, you simply insert a blank floppy disk in your disk drive, right click and then format. On the format screen there is a box you check to create a DOS boot disk. Once your boot disk is ready, copy your unzipped files to the floppy disk.

[Step 4] Reboot with the DOS boot disk. Make sure your computer IS NOT overclocked, and reboot with the boot disk in the drive.

[Step 5] You will soon see the "A:\\>" prompt. This is your command line. Type: "WFFLASH.EXE S" This will take a minute or two and will back up your original bios.

[Step 6] Now we will flash the new bios. Type: "WFFLASH.EXE NM A380U.ROM" This will also take a minute or two. DO NOT shut down your computer. Wait. You will be greeted by a welcomed "Programming is OK (0)" message.

[Step 7] Now reboot. If all is well you will be greeted by a colorful "Winfast A380 Ultra VGA Bios......" boot screen. Success!!! If you have any problems, power your system all the way down and reboot. If you have no video, a PCI video card can be used to re-flash and recover your bios using the same procedure.

The boot screen will display 128/256mb of video RAM. The Nvidia drivers will reload and show your card as a 5950 Ultra. You will need PowerStrip, EVEREST Home Edition, Riva Tuner, etc., or the registry hack to gain access to the overclocking panel in the driver. You will see that your clock speeds are 475/475. Happy overclocking.
    
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post #2 of 12
What are the stock speeds of the FX5900?
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post #3 of 12
Quote:
Originally Posted by xypex982
What are the stock speeds of the FX5900?
400/425
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post #4 of 12
So what's the point? Just a fancy name and permanent overclock?
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by Fishie36
So what's the point? Just a fancy name and permanent overclock?
c-on! The whole point is there!
    
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post #6 of 12
Quote:
Originally Posted by eugenepvd
What are you, Stupid! The whole point is there!
Ya but is this really gonna make that much difference on such an old and crappy card??
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post #7 of 12
Thread Starter 
Quote:
Originally Posted by lonnie5000
Ya but is this really gonna make that much difference on such an old and crappy card??
Yes, defenatly! I moded my friend card and now he play COD2 with averything on high setting with dx7!
    
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post #8 of 12
Well, i don't see why can't you just use registry hacks to turn the card's clocks as fourth...
There is no point because you don't gain any additional pipes or features, something you could do only under very complicated procedure using software hacks...
It's definitely not any better then software overclocking the card to the same clocks, a Rep for the effort and the investment!.
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post #9 of 12
thats funny cause my 5900 alreaqdy runs at a stable 745 and i didnt have to do all of this
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post #10 of 12
Quote:
Originally Posted by Hellgy
Well, i don't see why can't you just use registry hacks to turn the card's clocks as fourth...
There is no point because you don't gain any additional pipes or features, something you could do only under very complicated procedure using software hacks...
It's definitely not any better then software overclocking the card to the same clocks, a Rep for the effort and the investment!.
It's definitely not any better than software overclocking? What software program can you use to get a .1 Volt Vcore bump?
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