Nesteq ECS 7001 700 Watt Power Supply
Author: Frank Stroupe
Editor: Shawn Knight
Date: 04-02-2008
Provided by: QuietPC
Pages:
Installation/Testing



Test Rig:

Intel Core 2 Quad Q6600
Asus P5K Pro
Buffalo Firestix PC2-10000 2 gig kit
2 x Apollo Radeon HD 3850 512MB in Crossfire
Windows Vista Ultimate 32-bit

First, I determined which cables I would need, put them together, added the little green end cap, and plugged them into the PSU. Then I placed the PSU in the case, added screws and wired everything up. This particular motherboard isn't all that great in the cable management department, so my build wasn't that pretty. It would be much better with a different motherboard.

Testing:


First I used a multimeter and measured the +5v and +12v. The +5v read 5.09v. The +12v read 11.86v, which is slightly low, but well within the industry 10% standard.

Leaving the multimeter connected, I launched OCCT. OCCT is a benchmark program that stresses the CPU and memory. The cool thing about it is that it uses Speedfan to monitor voltages during the 30 minute benchmark run, and makes a graph of the PSU's performance. By running other applications during the test, we can use this graph to see how the power supply reacts to different stresses. One application I used was FurBench, an OpenGL benchmark program that maxes out the GPUs, which is the biggest power eater in the rig, and I'm running two of them.

For some reason, I assume due to Vista, Speedfan doesn't register the correct voltage on my rigs. Its not a problem, though the baseline is different, we still can observe the PSU's performance, and get the actual voltages from the multimeter.


A very odd thing happened during the first test run. The meter showed a steady 11.86v from the time I plugged it up, until the time that OCCT started stressing the CPU, then it jumped to 12.01v. It remained at 12.01 until the CPU stress level dropped under 60%, then the voltage dropped back to 11.86. At about five minutes into the test, I launched FurBench, and the voltage stayed at 11.86 until I stopped it.

I began wondering if the Nesteq is designed to run at lower power until the system is stressed. The Nesteq website is in German and much of it can't be translated by Google, so I couldn't find anything out there. There was nothing in the user's manual either. You'd think that would be a feature worth mentioning.


Just to see, I ran OCCT again. The PSU did the same thing, with a couple of dips below 11.86. At 27 minutes into the test, I launched FurBench. The 7001 eventually dipped down to 11.80, still well within the 10% standard. I'm well satisfied with the performance of the Nesteq ECS 7001.


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