Enermax Galaxy 1000W Power Supply
Category: Power Supply
Manufacturer: Enermax
Provided by: Coolergiant Computers
Model: EGA1000EWL (active PFC)
Price: See latest prices
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The Test
Instead of jumping in a new and low power consuming Conroe I've decided to use in this test AMD Athlon 64 FX-60, which has TDP of 110W. I think it is pointless to test the power supply of high caliber equipment like the Galaxy with only 1 hard drive, low power consuming Conroe and a single video card, don't you think? Well, Quad SLI is a must but with Quad SLI only you won't stress it much ;) While monitoring the system with my multi-meter I started a DVD burn process, initiated a copy process of a total of 20GB files from one RAID to another, fired an SM graphics test from 3DMark06 in a loop at 1600x1200 resolution with enabled 8x AA and 16x AF. System become quite slow. On top of that I've managed to start a Prime95 to stress out the CPU which slowed down the system completely.The following is the list of components of the test bed:
| Motherboard | DFI NF4 SLI-DR UT |
| CPU | AMD Athlon 64 FX-60 @ 3.0GHz |
| Video | 2 x EVGA GeForce 7950 GX2 |
| RAM | 2GB (4x512MB) Mushkin Redline XP4000 |
| System HDD | 2 x 36GB WD Raptor in RAID 0 |
| Storage 1 HDD | 2 x 250GB Seagate Barracuda 7200.10 in RAID 1 |
| Storage 2 HDD | 1 x 400GB Seagate Barracuda 7200.10 |
| Optical Drive | Asus DRW-0804P |
| Sound | Sound Blaster X-Fi XtremeMusic |
| CPU Cooler | Zalman CNPS9500 LED CPU cooler |
| Fans | 6 x 120mm Fans |
| Power Supply | Enermax Galaxy 1000W |
| OS | Windows XP Professional SP2 |
Noise level: The Galaxy's 135mm fan is just simply silent. The backside of the PSU has another fan which is also pretty quiet.
The most important power draw is on the +12v rails. Measuring the +12v rails separately with a multi-meter shows stability in Watts.
This picture shows +12v on PCI-E under load.
Both PCI-E +12v measurements results were showing +12.07v and were incredibly stable during the whole load test. The rest of the pictures were +12v results on HDDs and CPU rails. I've recorded a tiny fluctuation of 0.01v on the CPU but as we know that 5% fluctuation is absolutely acceptable and the +12v should remain between 11.4 and 12.6V. From the below results you can see that Galaxy 1000W is stable "like a rock".
|
LOW (the lowest measured value) |
|||
| +12V | +5V | +3.3V | |
| Idle | 12.01 | 5.02 | 3.32 |
| Load | 12.03 | 5.04 | 3.32 |
|
HIGH (the highest measured value) |
|||
| +12V | +5V | +3.3v | |
| Idle | 12.07 | 5.03 | 3.33 |
| Load | 12.06 | 5.04 | 3.32 |