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Underclocking video card?

C

CurrentlyNotHere

Weaksauce
Joined
Jul 23, 2006
Messages
105
Can underclocking damage my video card or PC hardware in general? Anyone have any experience with underclocking? I have an X850XT, and I don't play games as much as I used to. (In fact, I haven't touched anything resembling a game in at least 3-4 months). I have turned down my video card fan via ATITool to 5%, and GPU temps are pretty low (39c idle), but I was wondering if I could lower/underclock my video card to lower those temps even more, which would probably reduce power consumption, load on the PSU, and overall system temperature even further.

Anyone?
 
Underclocking shouldn't hurt anything, but be careful when undervolting.... not enough volts to run your hardware may contribute to system instability.
 
I don't intend to undervolt it, just underclock it. Both in 3D and 2D mode. I also intend to underclock my X800GTO. The machine its in (X800GTO) is used primarily for media playback (output to a monitor), internet radio and occasional video encode. X800GTO is really overkill for it. I was just wondering about any possible issues.

Anyone?
 
CurrentlyNotHere said:
I don't intend to undervolt it, just underclock it. Both in 3D and 2D mode. I also intend to underclock my X800GTO. The machine its in (X800GTO) is used primarily for media playback (output to a monitor), internet radio and occasional video encode. X800GTO is really overkill for it. I was just wondering about any possible issues.

Anyone?
Click to expand...

You should be all set. Why not just under clock in 2D only?
 
I've underclocked 2D mode on several videocards (never bothered with 3D mode if the card has two different settings).

Edited the bios on a couple of my Geforce cards and/or used the Rivatuner clock panel. Used Ati Tray Tools' automatic 2D/3D clock switching functionality with a couple Radeons with mostly positive results. And I'm guessing that the problems I ran into back then has been fixed in later versions.

The only issue I've ran into is that some cards don't like to be clocked too low. But this only happened when going really low. As an example I've had a Radeon 9600XT lock up on me when I tried to run it at 100Mhz core speed. :p
 
That sounds pretty good, Pandur. So far I've run into only one problem. ATITools does not detect my new X800GTO properly. It registers the GPU core at 24Mh, and VRAM at 52Mhz, and then it crashes. I guess I'll use RivaTuner.
 
Was going to make a new thread, but no since this thread is related to what I have to say.


Speaking of 2D, what apps or programs uses 2D anyway, why should they even have a feature to overclock it?
I use rivatuner and I have option to do OC or UC it, I only use the 3D part to OC my video card cause I play some games like BF2 and Serious Sam II.
 
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