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-- Glacial Power 550W PSU
-- Category: Review
-- Posted by: dave303
-- Posted on: 2007-08-16
-- Price: ~ $N/A USD
-- Pages: 1 [ 2 ]
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I received two of these power supplies from Glacial Power as I thought I was having some power issues. After some tinkering, I found that I was passing 120V through the PSU while it was expecting 240V. Switching the PSU to 120 Volts it was able to work like a champ.

Basic items in all test cases:

  • 250 gig Seagate HDD (60 gig Seagate used in the 1ghz or lower systems)
  • NEC 3550A DVD burner
  • 2 120mm Fans
  • Spire case.

Tested beds used:

  • Gigabyte P35C-DS3R, E6600 Processor, Evga 8800GTS Video Card, 2GB of DDR3 RAM
  • Gigabyte 945 mATA board - Intel Pent D 805 Processor, Geforce 7800GS video card with Zalman Fatality HS, 4GB of RAM
  • Epox NF4+ Board, AMD 4000+ 939 Processor, Geforce 7800GS video card with Zalman Fatality HS, 1GB of DDR RAM
  • AMD Tbird 1 GHz, Geforce 5200 AGP video card, 1GB of RAM
  • P2 400Mhz Socket 370 systems with on-board video, 256MB of RAM

The 5V rail is a bit higher than normal. However, it stays the same during the full boot up processes and through various test runs on the system.

Next we go through the same testing with the 12V rails connected to the meter. The rails are stable and keep a constant voltage during the testing.

This Glacial Power 550W unit was used for a couple of weeks of testing and loading / unloading RHEL 5 on a test rig. You can usually spot issues with a power supply over time, so I thought a couple of weeks should be enough.

Overall the PSU has some good stable power output, it did not fluctuate during the testing time and random reading times. The heat sink in the PSU is a nice size and should keep things cool on the inside.

One small disadvantage is that it doesn't come with the P4+ 4 pin cable to power some of the high-end systems. To get that done, you will need an adapter. They also only wrap the ATX power rails. It really does help on keeping the wires looking nice and clean, but it would have been nice if they were all done in the same way. The unit also has both ATA power and SATA power ends to get your devices working.

Thanks to Glacialpower for sending over this sample!


  • Large size heat sinks
  • Dual 12+ rails
  • RoHS (Green soldering)
  • Low noise


  • P4+ missing
  • Only ATX cable is wrapped

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