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Robert M.

Robert M.

Joined on 08/27/09

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Product Reviews
product reviews
  • 1
Most Critical Review

Not recommended

COOLMAX ZU Series ZU-500B 500 W ATX12V v2.31 / EPS12V v2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply
COOLMAX ZU Series ZU-500B 500 W ATX12V v2.31 / EPS12V v2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply

Pros: Some modularity of cables Quiet

Cons: I bought 4 units for 4 custom desktops, with 4 ASUS P8B WS motherboards. All 4 PSUs registered 5.5-5.7v on the +5v line (confirmed with a multimeter). The motherboard showed this value out of acceptable range. I emailed Coolmax tech support and they were no help (they blamed the MB). ASUS said their MB could handle the extra voltage, so I kept the PSUs. The +12v line shows 11.5v. Looks like a resister was mis-placed in this model. One PSU had a current spike when running Windows Experience Index, which shut down the computer, so I RMA'd it (I tried it in a second system with the same results - spiked when testing the video card). Replacement still had voltage issues. Seems to be a problem with this model. Overall, for first impressions, I won't buy this model again, and probably won't buy Coolmax products again.

Overall Review: Not as modular as other PSUs. One two-molex line and one two-sata line cables are built-in. The rest of the cables can be added as needed. Newegg RMA process for defective PSU was very easy. Turn-around time was decent. I gave 2 egg rating because the PSUs do work, but they have issues and I don't recommend buying this model.