Question about OCing a 5900nu

[Amused]

I'm able to reach 480/980 with this card (Gainward). Is that decent?

 

[modedepe]

Yeah I'd say that's pretty good..I guess yours has 2.2ns ram?

 

[Amused]

Originally posted by: modedepe
Yeah I'd say that's pretty good..I guess yours has 2.2ns ram?

I have no idea. I didn't look.

 

[Corporate Thug]

only 2.2 ns will reach that high

btw, thats a great OC

 

[Amused]

Another question,

Does it matter what I set the 2D core clock at? Should I underclock it while in 2D, overclock it, or just leave it be?

This is the first time I've seen two clock settings for 2D and 3D.

 

[Keysplayr]

I dont know if this makes any sense, but I'll try. And feel free to disagree, please:
I have always been told that it is better to always leave a computer on instead of turning it off after each use. The reason I was told this is because every component in your pc heats up when in use and all those parts expand accordingly. Anything when heated expands. When you shut it down, it contracts when it cools. Hence it is best to leave your computer on at all times (if you can) to avoid all this expanding and contracting. I dont know if the same applies to the vid card core. I mean, when I'm playing a heavy 3d app, the core on my 5900nu gets to about 56C at stock 400 core speed. In 2D, my core runs anywhere from 42-44C at 300 core speed. I have heard someone on this forum say that he set his 2D speed to 75Mhz core and I think he overclocks for 3D.
In my opinion, I would leave the factory preset to stock 2D speed. 300MHz for 5900nu. I could be way off base here but I think Nvidia would have set the 2D much slower if they didn't need to worry about expanding and contracting.

Sorry for the long story here, but it just came to mind when you asked about 2D core speed settings.

Any thought on this my fellow anandtechians?

IMO
Keys

 

[modedepe]

For 2d I'd leave it at the speed that it is normally set at for 2d. It has been tested and nvidia feels that at those speeds the fan can be turned down.

As for leaving your computer on for expanding and contracting, I tend to disagree. I don't see how that would cause many ill effects. My understanding of why it's better to leave a computer on instead of turning on and off is because of the voltage peaks and lows. When you turn on a computer, at first the voltages coming out of the psu will probably flucuate a little. After a few ms it should even out. Exposing the components in a computer to these fluctuations constantly could cause damage to them. That's always been my understanding..

 

[JammingJay]

480/980 is a excellent overclock. Most online reviews I've seen typically get around in the neighborhood of 455/960. :beer:

 

[Amused]

That makes sense to me. The main reason I leave my system on 24/7 is for the HDDs. They are the only mechanical part in my computer, and most prone to failure due to thermal conditions. I can see how this may be a problem for a chip as well, I guess.

Anyone else have an opinion?

 

[Keysplayr]

Originally posted by: modedepe
For 2d I'd leave it at the speed that it is normally set at for 2d. It has been tested and nvidia feels that at those speeds the fan can be turned down.

As for leaving your computer on for expanding and contracting, I tend to disagree. I don't see how that would cause many ill effects. My understanding of why it's better to leave a computer on instead of turning on and off is because of the voltage peaks and lows. When you turn on a computer, at first the voltages coming out of the psu will probably flucuate a little. After a few ms it should even out. Exposing the components in a computer to these fluctuations constantly could cause damage to them. That's always been my understanding..

Ok, I like your reason much better...

 

[klah]

Originally posted by: Amused
That makes sense to me. The main reason I leave my system on 24/7 is for the HDDs. They are the only mechanical part in my computer, and most prone to failure due to thermal conditions. I can see how this may be a problem for a chip as well, I guess.

Anyone else have an opinion?

Unless you have an IBM GXP.