Cooler Master Real Power Pro 1250W Power Supply

Category: Power Supply
Manufacturer: Cooler Master Co., Ltd.
Provided by: Cooler Master Co., Ltd.
Model: RS-C50-EMBA-D2
Price: See latest prices

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The Test

For the testing purposes, the Cooler Master Real Power Pro 1250W power supply was installed in the system with the following components:

Test Platform
CPUIntel Core 2 Quad Q6600 @ 3.0GHZ
MotherboardAsus P5K Premium
RAM4GB (2x2GB) G.Skill DDR2 1000
Graphics card(s)eVGA 8800 GTX
Drive(s)3x36GB WD Raptors ADFD in RAID 0, 2x320GB Seagate Barracuda 7200.10 in RAID 1
CPU CoolingSwiftech MCP 650 Water Pump, Apogee GT, Dual Heatercore radiator
SoundSound Blaster X-Fi XtremeMusic
Other DevicesAsus DRW-0804P Optical Drive, Media Card reader/Floppy Drive combo
Fans5x120mm, 1x80mm, 1x60mm, 1x40mm, Corsair Dominator RAM cooler
Operating SystemVista Ultra 32-bit

Idle voltages were measured by powering the system at the default speeds, and voltages with no applications running in Windows for at least 30 minutes.

Load condition was established by running loops of the SM graphics test from 3DMark06 at 1600x1200 resolution with enabled 8x AA and 16x AF and Orthos (4 cores) at the same time for 24 hours. In addition to this, I initiated a data transfer between hard drives using SyncBack. All voltage rails were measured using a digital multimeter by tapping into various connectors. In addition to these stressful applications running, the loaded system was overclocked and overvolted to add more demand to the CPU and graphics card.

The chart above details the results from digital multimeter recorded on +12V, +5V and +3.3V rails. Only slight fluctuation of 0.02V was noted on +5V rail. Remaining +12V and +3.3V rails were rock stable, with no fluctuations recorded! This is the best voltage regulation I have seen so far.