Cooler Master Real Power Pro 1250 Watt Power Supply
Author: Frank Stroupe
Editor: Shawn Knight
Date: 03-24-2008
Provided by: Cooler Master
Pages:
Introduction

Since I was in elementary school, my dad has been an amateur (“ham”) radio operator. Most of his friends were and are electronics techs, either as a living or a hobby. I've personally dabbled in electronics for decades, and last year I finally made my dad's 40 year dream of having his son get his own ham license come true. So needless to say, electronics technical jargon is about as familiar to my ears as my own name.

So when I read maybe 1.5 years ago that a company familiar to most of us built the first one kilowatt (1kW) PC power supply, I was really impressed. Yes, deep inside I probably agreed with most people that no one would ever need a power supply that large, but so what? If I'd had the cash, I would have bought one just to say I had it. “How big is your power supply?” “1kW!” Sorry, I feel that is extreme coolness.

Who would have thought at that time of a setup using something like three or four 8800 Ultras? Even a pair of those power hungry babies wouldn't get enough power from probably 90% or more of the PSUs on the market today. Could anyone have imagined a multiple GPU video card like the 9800GT2, much less running them in SLI? To answer the call for that kind of power, our friends at Cooler Master have launched the new flagship of their Real Power Pro line, the Real Power Pro 1250, and we will be looking at one today.



The Real Power Pro 1250 comes in this large box, the largest power supply box I've seen yet. The features and specs are on the rear of the box. Inside, the power supply is well protected on all sides with thick high-density foam.

Specifications:

Model: - RS-C50-EMBA-D2\
Type - ATX Form Factor 12V V2.3 / SSI standard EPS 12V V2.92
Maximum Power - 1250W
Fans - Ultra-silent 135mm fan with intelligent speed control
PFC - Active
Main Connector - 24Pin
+12V Rails - 6
PCI-E Connectors - 4 x 6Pin, 3 x 8Pin
ATI CrossFire Support - Yes
NVIDIA SLI Support - Yes
Power Good Signal - 100-500ms
Hold-up Time - 17ms min.
Efficiency - > 87% \
Energy-Efficient - 80 PLUS Certified
Over Voltage Protection - Yes
Overload Protection - Yes
Input Voltage - 100 - 240 V
Input Frequency Range - 50/60 Hz
Input Current - 19A @ 115V, 10A @ 230V
MTBF - >100,000 Hours
Approvals - CE, cUL, TUV, NEMKO, BSMI, FCC/CCC/C-tick
Dimensions - 5.9" x 7.1" x 3.4"

Features:

-World's first six +12V rails for better power distribution in Quad-SLI and 2 ways server system
-Six 6 pin PCI-e connectors offer great future upgradeability
-Three 8 pin PCI-e connectors are compatible with future graphic card upgradeability
-Compliance with the newest Intel standard ATX 12V V2.3
-Compliance with the newest SSI standard EPS 12V V2.92
-Ultra-silent operation with intelligent 135mm fan speed control (< 16dBA)
-Eco-design for energy and money saving by Active PFC.(>0.99)/
-Power Failure Detector will light up when Over-Voltage,Under-Voltage,
-Over-Temperature, Over-Current, Over-Loading, and Short circuit occur


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