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Overclocking 7800 Go

post #1 of 37
4/21/06 at 10:24am
Thread Starter 
I've tried to overclock my 9400 with 7800 Go with different speeds. Is there a safe speed range that I should use so I won't fry up my card?
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post #2 of 37
4/21/06 at 10:48am
Use the "Detect Optimal Settings" button under clock frequencies in the NVIDIA part of display properties, that should give you a good idea of where to start, and go up a little at a time, testing each time for artifacts, etc. When you experience artifacts, drop it back a notch further just to be safe.
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post #3 of 37
4/21/06 at 7:17pm
volt mod it!

Stupid tings have cooling issues tho :-(
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post #4 of 37
4/22/06 at 5:15am
Thread Starter 
Quote:
Originally Posted by verbatim
volt mod it!

Stupid tings have cooling issues tho :-(



How do I volt mod it?
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post #5 of 37
4/22/06 at 2:14pm
Quote:
Originally Posted by ianlg
How do I volt mod it?
Not recommended - volt modding is the quickest way to end up with a random lump of copper and melted silicon.
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post #6 of 37
4/22/06 at 4:46pm
while we're on the topic, if anyone has a link for the 1.3voltmod .iso file, i'd be willing to do... well, I'd be happy

btw ianlg, I am using the 1.2v mod right now, speeds at 400 core/ 900 mem and my system runs perfectly
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post #7 of 37
4/22/06 at 4:49pm
Yea the 1.2 is fairly safe.

Is the 1.3 iso been taken out if that thread?
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post #8 of 37
4/22/06 at 7:30pm
I'm about to OC mine agian too. I have the old BIOS boot disk for it; is there any reason to use anyting other than that method and a little testing for stability?

-Doc
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post #9 of 37
4/22/06 at 7:40pm
http://aibal.fileburst.com/Nvidia%20...0MOD%20ISO.zip

Click to Download BIOS for all 7800 Go Voltmods.

Follow the instrctuions in the read me file.

My skills dont allow me to make seperate bootable .iso for all voltages, but if you burn my .iso to CD and boot from it, you can type in whatever BIOS you wnat to flash to, its pretty easy...
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post #10 of 37
4/22/06 at 8:19pm
Quote:
Originally Posted by aibal
http://aibal.fileburst.com/Nvidia%20...0MOD%20ISO.zip

Click to Download BIOS for all 7800 Go Voltmods.

Follow the instrctuions in the read me file.

My skills dont allow me to make seperate bootable .iso for all voltages, but if you burn my .iso to CD and boot from it, you can type in whatever BIOS you wnat to flash to, its pretty easy...
Thanks a lot for that.

I had an interesting (or at least, what I found interesting) result. With the 1.2v I was able to get a stable oc of 410/900 and past that started having artifacts. I figured the 1.3v might get me a little more. First of all, it raised my idle temp by about 10 degree celsius, which is a lot. Anyways, I remained at the same speeds (actually, when I went to auto-detect, I got the BSOD but rebooted fine, went back to NVTweak and wasn't able to raise clocks).

My take-away from this: The 1.2v mod is pretty damned sweet and that's where i'm gonna stay (at least til I can pop a 7900gtx in here...hehehe)
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post #11 of 37
4/22/06 at 8:22pm
Quote:
Originally Posted by lollavid1
Thanks a lot for that.

I had an interesting (or at least, what I found interesting) result. With the 1.2v I was able to get a stable oc of 410/900 and past that started having artifacts. I figured the 1.3v might get me a little more. First of all, it raised my idle temp by about 10 degree celsius, which is a lot. Anyways, I remained at the same speeds (actually, when I went to auto-detect, I got the BSOD but rebooted fine, went back to NVTweak and wasn't able to raise clocks).

My take-away from this: The 1.2v mod is pretty damned sweet and that's where i'm gonna stay (at least til I can pop a 7900gtx in here...hehehe)
I have been able to run OC at 495/947(minor artifacts) with 7800go at 1.3V. As long as you use I9kfangui it should be ok.
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post #12 of 37
4/22/06 at 8:58pm
What I'm wondering though is are volt mods necessary? I used to overclock the card a bit and had no real heat issues.

I'd like a little more info at this point.

-Doc
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post #13 of 37
4/22/06 at 11:03pm
I used the BIOS boot disk to set the clocks at 450/1200 and I just played FEAR for a while to test it. Max GPU temp: 83C. I guess that's plenty cool enough considering that the card won't throttle down until it hits 115C.

-Doc
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post #14 of 37
4/23/06 at 11:20am
I had a crazy experience. After your encouragement, aibal, I downloaded Powerstrip to see if I could get a bit more out of a 1.3v mod. Well, my memory maxed at 922... just crazy low, huh? after that 3dmark05 started showing artifiacts (big lines shooting out of people's arms and stuff). Well, the gpu went up to about 500. When I tried combining, however, I had to set the memory back down to 900 to stop the artifacts. weird huh?
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post #15 of 37
4/23/06 at 12:43pm
Yeah, you should be able to get a bit more out of it. Unfortunatly all GPU are not created equal. Also, you might try it with a diff driver. i got my highest 3dmark06 with 84.15 from Laptopvideo2go
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post #16 of 37
5/4/06 at 10:12am
What's up guys. Aibal, thanks for the cd. I used it to flash my card. I am trying the 1.2 volt mod. I set the speed in the bios to 400 core/900 mem. Boots into windows fine (no video drivers loaded, I had uninstalled the old stuff, was going to try and use dell's drivers becuase I have seen posts where people say it runs the card cooler, who knows). So the driver install starts off fine, installs driver, but as soon as it trys to change the resolution to 1920 by 1200 I get a screen full of artifacts. Does this with the dell drivers and Xtreme G drivers.

So, I flash back to dell underclocked speeds, install drivers fine, screen changes to 1920 by 1200 fine. Using the Xtreme G drivers I run detect optimal settings, it gives me off at 390 core/935 mem. Hmm, close enough. Baiscally I just want to run the card at the specs it supposed to be from Nvidia, not dells sucky underclock. Any suggesions on how I can run 400 core/900 mem?

The other thing that sucks is the temps on this thing, playing Obilivion for a while the keyboard gets warm, my cpu I think is going to 51c or so and the video card 81c or so, and the keyboard get somewhat warm. How do those temps sound to you guys? Normal?

Thanks
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post #17 of 37
5/4/06 at 10:47am
Quote:
Originally Posted by Doc.Caliban
I used the BIOS boot disk to set the clocks at 450/1200 and I just played FEAR for a while to test it. Max GPU temp: 83C. I guess that's plenty cool enough considering that the card won't throttle down until it hits 115C.

-Doc

sorry

please lunch 3d mark o5 with 450 /1200 in max performances please please
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post #18 of 37
5/4/06 at 12:24pm
sounds normal to me. You should start worrying if the GPU gets past 100c on load and 80c on Idle. If your paranoid like me get a Laptop cooler. Newegg has the pacific breeze for 15 bucks. That will lower temps by 5 degrees c
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post #19 of 37
5/4/06 at 12:31pm
Yeah, I got one of those coming in today sometime. I need to know what to do about clocking it. Should I try like 405/900?
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post #20 of 37
5/4/06 at 12:58pm
Thread Starter 
Quote:
Originally Posted by thaddyusmaximus
sounds normal to me. You should start worrying if the GPU gets past 100c on load and 80c on Idle. If your paranoid like me get a Laptop cooler. Newegg has the pacific breeze for 15 bucks. That will lower temps by 5 degrees c

Hi,

I got a laptop cooler but it really doesn't do anything for my 9400 GPU.
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