I used WinISO trial version to add my custom BIOS files to the bootable CD image 7800BIOS.ISO. Worked just great.
post #161 of 487
12/14/05 at 9:59pm
Originally Posted by Blahman
1) Download this: http://www.ldb4.com/7800BIOS.ISO
2) If you don't already have a CD burning program download this: http://static.slysoft.com/SetupCloneCD.exe
3) Put in a blank CD-R or CD-RW media.
4) Install and run CloneCD, click the button that says Write from ImageFile, select 7800BIOS.ISO and continue to burn the CD.
5) Reboot, hold F2, select boot from CD drive.
6) Hit enter until you are given the R:\ prompt
7) Type dir /w to see a list of the BIOS files on the CD. They'll look like 425C1200.ROM etc. You'll want to start off with something moderate like 425C1200.ROM before moving up to higher speeds.
8) Type nvflash (name of bios file.rom) and hit Y. For example type 'nvflash 425c1200.rom' without quotes to flash your BIOS to 425MHz core clock and 600MHz memory clock (DDR doubles that 600MHz into 1200MHz effective speed -- just a bit of technical info for ya).
9) Reboot (hit Ctrl-Alt-Delete), run ATItool and do an artifact scan for 5-10 minutes or so and make sure it doesn't get any artifacts. It should say 0 artifacts in xx:xx minutes which should be the same length of time since you began the test. If you get artifacts the two times will be different and it will also briefly say something about 'delta of xx' meaning it detected artifacts. If you get no artifacts you can safely go up another clock speed so reboot and repeat steps 5-9 until you find a comfortable overclock for your machine. Once you get artifacts in ATItool, back off 5-10Mhz on the core clock and use that.
If you want to go back to the original (stock) clocks, type nvflash original.rom at the R:\ prompt.
Originally Posted by yboivin
I had the 7800 GTX working OK at 440/1100 and tried the 450/1100 combination from the ISO on the first post.
It stopped while flashing the ROM and now my new laptop won't even boot !
I'm currently waiting to talk to Dell about a replacement card...
Is there ANY way to bring the laptop back to life ?
I guess it's my bad.
Thanks for any idea !
Originally Posted by flick
Just did the same thing to my 7800gtx. I tried to flash 450C1200.rom and it stopped in the middle of storing the new clock speeds. I watched it go about 6 dots or so and it just hung there. I let it sit for about 5 minutes, knowing that is was screwed, but praying some how the dots would keep going. Anyway, called dell spare parts and ordered yet another 7800gtx. for 245 plus shipping. I'd rather get another card now than try and go through tech support and it take a few weeks or have them find out it's a 9300 and the cards not supported officially on that model. So, now I've bought 2 for the price of 1 and have learned my overclocking lesson.