Hardware & Technical Rig makers ... Graphics Card - PSU question

Caspar

Caspar
adoredtv said:
That's a classic case of the poster misinterpreting what Nvidia says.

"The Geforce 8800GTS requires a minimum 400W or greater system power supply with a 12V current rating of 26A. While most Geforce 8800GTX users power supply meets or exceeds the minimum wattage requirements, the power supply may fail the minimum current necessary to achieve consistant framerates during heavy use of the graphics card."

It should be read as "During heavy gaming where the graphics card is delivering consistent (high) framerates, the power supply needs to be able to provide enough continuous current to the card or it will fail".

Anyway, toms is pretty bad for tech advice. This is a good article that explains a lot about PSUs - http://www.enthusiastpc.net/articles/00002/4.aspx

He even mentions this in it -



It's good that you're getting a new PSU anyway - that one you have probably doesn't owe you anything at 10 years old. I'm assuming you had to hook up extra adapters for it, ie an extra 6-pin or two?
Click to expand...

Surprisingly, in spite of its age, it came with two pci-e 6 pins.

I popped the new 600w Antec PSU in today. One thing I will say is that my rig seems much cooler than with the old PSU. I'm not sure how that works but can only imagine the old one was far less efficient and perhaps being thrashed.

It didn't magically sort out any FPS issues as you predicted. What I have found since about the Oculus FPS issue is that it happens under particular circumstances which have nothing to do with GPU or CPU load.

Thanks for all the input.
 

adoredtv

adoredtv
Caspar said:
Surprisingly, in spite of its age, it came with two pci-e 6 pins.

I popped the new 600w Antec PSU in today. One thing I will say is that my rig seems much cooler than with the old PSU. I'm not sure how that works but can only imagine the old one was far less efficient and perhaps being thrashed.
Click to expand...

Very likely, 10 years is a very long time in PC components. Everything will benefit from it in that case, lower temps all around is always good.

It didn't magically sort out any FPS issues as you predicted. What I have found since about the Oculus FPS issue is that it happens under particular circumstances which have nothing to do with GPU or CPU load.

Thanks for all the input.
Click to expand...

No problem.
 

Briarée

Briarée
norcus said:
It is interesting to see that now the CPU is the heat bottleneck not the GPU. At least on my system. GPU and CPU are on the same waterloop and the CPU (i7 4790k@4.4GHz) will shoot up to 80C and increase to around 85C during stresstests, but the GPU (780 OC 1150MHz) never goes above 60C. Granted, ambient temp is probably slightly higher in the CPU area it is still a big difference.

I wonder if the shrinking process now faces a new challenge. Maybe heat dissipation is lower since the density of transistors are so high. Devil's Canyon are 22nm, but the GPUs are still at 28nm. Skylake will start at 14nm?
Click to expand...

same for me, thos cpu never go that high, max i remember was around 70°C in a hot day under full load (occt cpu + gpu).
water was 50-51°C (max temp i ever saw, pump allow up to 60°C)
and it's and "old" 2600k running @ 4.2Ghz

but under normal gaming, max is aroud 60°C for CPU and 65°C for gpu's
 
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Th3Guardian

T
Happy to hear you have a new psu and it's working great now, or is it? :D

With the fps drops I mean. Should be better, let us hear it. :)

Th3Guardian
 
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