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7800GTX Overclocking for Idiots--BOOTDISK download Included! - Page 9

post #161 of 486
12/14/05 at 9:59pm
I used WinISO trial version to add my custom BIOS files to the bootable CD image 7800BIOS.ISO. Worked just great.
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post #162 of 486
12/14/05 at 10:02pm
Yup, just figured that out and did the same thing. Here goes nothing with my new files and speeds.
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post #163 of 486
12/14/05 at 10:05pm
if u have a thumbdrive, and a nifty little program call HP Drive key, I have all of the Windows ME boot files, you make ur thumbdrive bootable, and just use that. It sure as hell saves alot of CD's, and it is alot easier to edit a .rom file, reboot, change it again, reboot try that. Instead of attempting to figure out which .roms u wanna play with, find out they dont work, waste another CD, yadda yadda yadda....
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post #164 of 486
12/14/05 at 10:56pm
Quote:
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.

The orginal.rom does not work. I'm geting a i/o error. What kind of alternatives do I have? What are teh stock clocks on this card?
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post #165 of 486
12/14/05 at 11:09pm
Stock clocks are 400/550. You can try the first post in this thread's link to see if the original.rom is working with that one.
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post #166 of 486
12/14/05 at 11:18pm
original.rom worked fine for me... on both the posted ISOs. try re-burning?
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post #167 of 486
12/14/05 at 11:19pm
THanks. It works on the hammrd rom. Clocks are at 400/532 according to ATI tool. O well guess it's close enough.

What is the probablility of getting a trojan with one of these bootdisks?
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post #168 of 486
12/14/05 at 11:22pm
THanks Blahman. I get ahead of myself all the time. What is the advantage to the second ROM. I know not to try the 450/1100 clock on either one... but I'm confused as to why to versions were created.
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post #169 of 486
12/14/05 at 11:30pm
The second one had some clock speeds added, as well as the bios mod program, I believe.
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post #170 of 486
12/14/05 at 11:57pm
Updated version of NVFLASH that officially supports the 6800U/7800 BIOSes... also skips a few prompts.
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post #171 of 486
12/15/05 at 3:54am
What's the difference between overclocking with bootdisk and manual overclocking in video cards properties?
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post #172 of 486
12/15/05 at 12:59pm
Thread Starter 
THe difference is, one of them doesn't work. I'll let you figure out which one.
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post #173 of 486
12/15/05 at 1:22pm
Quote:
Originally Posted by hammermd
THe difference is, one of them doesn't work. I'll let you figure out which one.
Gotcha
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post #174 of 486
12/15/05 at 5:09pm
Who is using AS5 on their GPU and who is not? I applied AS5 on mine, but I'm getting > 93C in ATITool at 440C1200...could it be that I didn't apply the AS5 correctly?

Currently being asked here:
http://www.notebookforums.com/showth...=117584&page=8
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post #175 of 486
12/15/05 at 6:40pm
If you read my post you'd see the new things I changed on the ISO, first off it doesn't prompt you to pick a boot option, it just boots. Secondly I updated the NVFLASH program, the new version officially supports the 6800 and 7800 cards. I also added the NvBiTor application so you could create your OWN bios images and modify the speed settings, you'll need something like a usb flash drive to put those on.
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post #176 of 486
12/15/05 at 10:50pm
Or use WinISO to put your custom BIOSes onto the ISO and re-burn, that's what I did, works just fine.
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post #177 of 486
12/22/05 at 4:33pm
Quote:
Originally Posted by yboivin
Hi,

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 !
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.
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post #178 of 486
12/22/05 at 4:49pm
Quote:
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.
WTF! This is disturbing! There are 2 people now with dead 7800 because of this. I've been flashing various roms numerous times, but haven't run into problems, count my blessings. But the ones that I've used are all with memory @1250 just varying GPU speeds. If some of these roms prove flakey maybe the author need to remove them. I for one will throw that cd in the trash now, just going to stick with my current working oc of 440/1250.

Sorry to hear about your card flick. Why don't you try returning the dead one anyways.
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post #179 of 486
12/22/05 at 5:51pm
OMG!1 avoiding 450/1100 and 450/1200. My 7800 is coming in the next few days, but this hasn't stopped my will to OC that sucker (Thought it does scare the **** outta me)

Im against taking the roms down, but they need alot more looking into
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post #180 of 486
12/22/05 at 6:23pm
It is beyond my comprehension why you guys trust something that you havent done yourself. I'm sorry if your card got a bad flash but it's your own fault for not making your own BIOSes. If you cant be bothered to learn about how this all works and to test settings for yourself then you have whatever happens coming towards you. I'm not saying this to be mean/rude/a prick or anything and I appreciate the work that hammer did, I just see it as a real shame that your ruin a beautiful piece of expensive hardware because you dont do your own work.
I highly recommend you grab NiBiTor v2.6 from here.
Then follow shoman's guide on BIOS flashing, only change the clocks instead of the voltages. http://www.notebookforums.com/showthread.php?t=110913
Use bcd and burn a CD-RW so you can keep re-using it. It's the easiest program in the world to use and making custom files can really help you pin point your performance. Hell, at one point I was doing 5MHz increments on the core so I could find my limit. Anyway, if you use your own BIOS and just mod the clocks on it, there should be very little room for error and a bad flash.
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