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Rosewill Xtreme 630W Power Supply Review - ThinkComputers.org

Power Supply

Product: Rosewill Xtreme 630W Power Supply
Date: August 1, 2008
Author: Colin Dean
Edited By: Bob Buskirk
Provided By: Rosewill
Pages: 1 2 3 4
Discussion: Discuss in Forums

Installation & Use

Installing the Rosewill Xtreme 630W power supply unit was extremely easy and straightforward-there aren't any tricks to it. The 4+4-pin CPU connector is not extremely short, but some users might find it just a little too short, especially for extremely tall cases, such as my Cooler Master Cosmos S.


Spot checks of the 3.3V, 5V, and 12V rails showed the Xtreme 630 to be overvolting all of the time at 3.37V, 5.01V, and 12.3V, respectively, but not such an extreme overvolt that it would be damaging the computer's hardware.

For benchmarking, I used OCCT Perestroika, an extremely useful monitoring and benchmarking tool for Windows XP which produces excellent graphs. I benchmarked the Xtreme 630W with my Athlon X2 6000+ processor, ASUS M3A32-MVP motherboard, 8 GB of DDR2 RAM, two SATA hard drives, a DVD burner, a Foxconn NVIDIA 8800 GTX, and Creative X-Fi Xtreme Gamer. For comparison, I include the results of my OCCT benchmark of the ThermalTake ToughPower 650W, an extremely stable unit I review in April.

The 3.3V rail was extremely stable throughout the test, rippling only at the start and end of it, the ripple negligible.


The 5V was extremely bumpy, but the amplitude of the ripples was only 0.01V from the average.


Like the 3.3V rail, the 12 V rail was extremely stable in the middle of the test, but waned towards the end, and dropped at the beginning. The ripple wasn't much, though, only 0.57%, but the unit did show an extremely high 12V rating when idle-the highest I've seen on any supply I've tested, at 12.3V.


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