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Rosewill RX630-S-B Xtreme Series 630W Power Supply
Author: Jason Kohrs
Manufacturer: Rosewill
Source: Rosewill
Purchase: Newegg
Comment or Question: Post Here
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Rosewill RX630-S-B Xtreme Series 630W Power Supply
September 23, 2008

Rosewill offers a wide variety of computer components, including a growing line up of power supplies. From no frills value units, to higher end units intended for the computing enthusiast, they seem to have an option for most users. This review will take a look at a unit from their Xtreme series of power supplies, which includes seven units with power ratings from 630W to 950W.

For those who want an enthusiast grade power supply, but don't need an extremely high power rating, and don't want to spend alot of money, the Rosewill RX630-S-B may be of interest. The RX630-S-B is a 630W unit that is available from for $84.99 with free shipping; definitely an attractive price if the performance passes the test.

Before taking a closer look at the sample provided for review, let's take a look at some of the published data available on the Rosewill RX630-S-B Xtreme Series 630W power supply. For the most up to date features and specifications, please visit the official product page on the Rosewill website.


Supports ATX12V v2.2 & EPS12V v2.91 standards
Supports both Intel and AMD Systems
Four 12V Rails provide independent reliable power
Active Power Factor Correction(PFC) provides clean and reliable power to your system
Silent 120mm Double ball-bearing Blue LED Fan with Auto Fan Speed Control
20+4 pin main connector for universal motherboard compatibility
Black Chrome Mirror Finish
Mesh sleeving on all cables for easier cable routing and better ventilation
Safety & EMI Approval: UL, TUV, CE, FCC, ROHS


AC input: 90~264 VAC, 47~63 Hz
DC Output:
    12V1: 20A
    12V2: 20A
    12V3: 20A
    12V4: 20A
    5V: 24A
    3.3V: 24A
    -12V: 0.5A
    +5VSB: 2.5A
Maximum Combined Wattage:
    12V Rails: 600W
    3.3V and 5V Rails: 140W
    -12V Rail: 6W
    +5VSB Rail: 12.5W
Total Power: 630W
Peak Power: 730W (60-120 Seconds)

While many manufacturers are getting back to using just one 12V rail, this one features four 12V rails, all of which are rated for 20A. This value, as well as the 3.3V and 5V ratings of 24A, seem rather good for a power supply with a total power output of 630W. I have used power supplies with higher total power ratings (and much higher price tags) that don't offer much better specifications on the individual rails.

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