Few words from

DELL-Machina, sakor1, & MrEvil

HOLD IT!!

Due to recent increase of people doing bad flashes were issuing a warning that if you are going to flash your videocard BIOS ensure you are using the correct BIOS to flash with otherwise face the horrors of pitch black display and the call to DELL techsupport.

Specifically users with the Inspiron E1705 or Inspiron 9400 with the GEFORCE GO 7900GS 256MB Videocards. You must first determine if you have a Rev 0 or Rev 1 Videocard Bios.
Rev 0 ver # 05.71.22.16.13
Rev 1 ver # 05.71.22.28.01

As you can see these are 2 different BIOS revisions. The easiest way to find out which you have is to restart your notebook and hit F2 when you see the DELL splash screen to enter the notebook BIOS. You should clearly be able to see which Rev card you have by comparing version numbers. Once youve determined which you have make a note of it and then proceed to the page below to Overclocking madness.

If you also happen to be using WindowsVista you should use the latest Videocard drivers available preferably Ver 158.42 and along with it the AtiTools v .27b which you can online for.

Lastly if your reading this and somehow managed to brick your card and see nothing on screen print a copy of these instructions which a local member has put together to recover (hopefully) from the flashing god bad. How To Recover from a bad Flash

Now onto the wonderful Overclocking world brought to you by JuanLu
Download Link of the BIOS...

Information needed to apply BIOS

Ok folks, for those who want to know whats going on here. Mr JuanLu here has hacked the performance mode settings of the 7900GS/GTX and 2500M so that there is no further need to reboot and reflash your video cards BIOS to change clock frequencies anymore. This is something that we have all needed for a long time, and on top of that should encourage people paranoid about flashing in the first place to give it a shot.

This is the real deal guys, I have flashed his unlocked GTX BIOS and it works exactly as it should now. I can change clock frequencies via ATITool now and/or the NV control panel if I please. Big props to you Mr. Juan, you have just made this modders day. I must admit I was a bit critical of you at first, but I see that you really have been working pretty hard to get this working. The memory timing optimization is kind of a reverse engineered GSX mod, but works just as it should (I kinda like seeing the word 7900GTX in the control panel anyway, lol..)

Give it a try guys, and GREAT WORK Juan, we all owe you a debt of gratitude.

Very very nice!!!!!!

AHHHH crap.

Spoke too soon I guess. Juan your mod works great up until Windows gets a reboot... then no matter what it will always default back to stock settings. You need to see if you can isolate the BIOS trigger that controls clock frequencies after a hard reset. Even via coolbits it will not reinstate my chosen clockspeeds upon reboot, cause the VGA BIOS forces a reset call. Sooooo.. we have a great first step so far. We can change clockspeeds and try different things to find our optimum values, but in the end we must still do another flash to get the desired settings to stick permanently.

I just tested the bios as well and I get exactly what you described.

OK, I need to be slapped with a large tuna now...

I retract my last statement. Apparantly I am a complete idiot and forgot to hit ONE more button... lol. Snooz, to get the clockspeeds to stick, just set them they way you want them in ATITool. After you are settled on a good speed, you have to (via Coolbits hack) go to the NV Control panel and check the box that says "Apply these settings at startup". After you check the box, CLICK APPLY!!! This would be the step I missed as I only clicked OK.... Click apply then ok and it will stick PERMANENTLY! How cool is that?

I did that but my nvcpl wasn't loading at startup.

Legit hack guys totally works.

Sounds like a great way to find your max settings without rebooting/reflashing constantly. I think once you figure out your settings though, a flash would be the best way to keep settings in the long run.

BigTymer

Yeah a final flash would guarantee they won't change, but the way I explained above is the way it should be done... This way at the worst, a simple driver uninstall in safe mode would fix the clockspeed issues... The above mentioned method of using coolbits is the way all normal nvidia cards work. Now our Dell's are 'normal' again!

COOL no more restart crap, gratz all of you i will test them soon and i might even squeeze more from my card now~!

lol, thats what I am saying. Its been nice so far. Lots easier to hit the sweet spots too! Guess I am glad I didn't go ahead and try to make the 50,000 rom files to cover the whole clockspeed range (gosh, I actually considered doing that at one point) We would have needed a DVD to burn that baby to!

I wish i had a 7900gs

Edit: I just bought one.

Cool

Can you expand the hack to cover the 7800gtx too?
I'll gladly hit that contribution button


Nice to see IT students/pirates with decent projects lol, and nice to see you use notebook forums

How are you are at dell bios, can you hack to make 7900/7950 fit in a dell 9300?
(dell A05 bios)

...that would unlock a BIGGGGGG contribution; may even pay your tuition lol
(see related thread "fits with simple mod but.."

Was only able to get 9880 3DMark05, so just a tad slower than flashing. Could just be typical 3dmark run to run variation though. I flashed back to my standard daily running setup (630/830). This is a cool hack, congrats on the work!

BigTymer

There will be absolutely no performance difference if you use the GTX BIOS called 79GTXUNV.ROM. This is the same raw GTX BIOS we use to flash to the GSX. The ONLY difference will be the fact that you only have to flash once to get all of the benefits. You are right, the minor difference you seen is just run to run variance, nothing more.