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Kombustor (a.k.a. Furmark) & XFX ZDFR 4890 -- overheating resolved?

post #1 of 4
Thread Starter 
I recently installed Afterburner for the custom fan profile -- my card would rev up to 55% fan speed at idle for around a second for absolutely no reason (this would happen from time to time).

Anyways, I stumbled upon Kombustor, used it (moderate -- 720p, 2x AA), and was wondering if it could stress my VRMs harder than say.. playing BFBC2 at high settings.

I'm asking this because I get around the same temps in both applications (in this case, it's 85-86*C for the GPU chip itself). However, I cannot monitor the VRM temps due to XFX cheaping out on the PCB. That said, again, could the VRMs be stressed more in Kombustor compared to BFBC2, even though all of the other temps (MEMIO, SHADERCORE, the GPU chip itself) were the same?

I probably answered my own question, but I figured I'd get some assurance..

Thank you once again!

Edit: Card's the ZDFR Rev 3.1 (not the ZDFC -- any difference?). I got this at Best Buy a while back when they were selling for really low (~$140)
post #2 of 4
If you're hitting 85*C on the core, and its a non reference 4890, your VRM's are likely hitting 100-110*C easy. My reference design that actually had VRM cooling, the VRM's were always a good 15*C warmer than the core.
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by pioneerisloud View Post
If you're hitting 85*C on the core, and its a non reference 4890, your VRM's are likely hitting 100-110*C easy. My reference design that actually had VRM cooling, the VRM's were always a good 15*C warmer than the core.
Ahh, I see. Nice info.

Just curious now if Kombustor/Furmark could stress this a bit more? I recently google'd 4890s and those tests, and found out that people had some overheating issues. If I recall correctly, those happened because of the earlier drivers?

I'm just a bit worried if I damaged my 4890 (could replace with a 6870, but at this point, I'm waiting out for the 7000 series -- don't play any games that demand more than a 4890... for now). But if what you say applies to any app (e.g. BFBC2, Kombustor), which seems to be the case, then I shouldn't have to worry about it.

Thanks for the reply!
post #4 of 4
Quote:
Originally Posted by alexman View Post
Ahh, I see. Nice info.

Just curious now if Kombustor/Furmark could stress this a bit more? I recently google'd 4890s and those tests, and found out that people had some overheating issues. If I recall correctly, those happened because of the earlier drivers?

I'm just a bit worried if I damaged my 4890 (could replace with a 6870, but at this point, I'm waiting out for the 7000 series -- don't play any games that demand more than a 4890... for now). But if what you say applies to any app (e.g. BFBC2, Kombustor), which seems to be the case, then I shouldn't have to worry about it.

Thanks for the reply!
The card shouldn't be overheating at all (VRM's or not). Doesn't matter what driver you're using. The problem is the non reference XFX design. That's exactly where XFX earned their bad name from, was the non reference 4890's, and the couple of "bad batches". They've just kept up with that same idea and keep making crappy cards lately.
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