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Two dead PSU's within 1 month

Hello all,

About 4 months ago, I built myself a new computer for the bones up. I got all of the parts together during the first three months, and after it was all built, I had the computer working a little less then one month. During that one month stretch, one day I left my pc on while I went to do something and came back to find it dead. I figured out it was my power supply (see specs below), so I sent it in and got a replacement. About a week and a half later--on Christmas eve--I got the replacement and put it in; however, as soon as I turned on the pc, the new power supply burned out. Needless to say, I was upset to say the least, but know I have a couple of questions:

1.) What could be doing this?

2.) If it's the Mother Board, are any of the other components compromised?

I am fairly certain it is not the wall outlet, as I have my old 550W pc plugged in now and I have no problems.

Here are the specs of the dead PC:

Motherboard: MSI NF750-G55 AM3
Processor: Athlon II x4 645 3.1 GHz AM3

Vid card: ZOTAC GeForce GTX 550 Ti 1 GB DDR5 PCIe 2.0 Sku: ZT-50401-10L (min 400w pwr supply recommended, 116w max pwr consumption)

Hard drive: 1.5 TB HDD
DVD burner: lite on
RAM: G.Skill Sniper 8 GB (2 x 4GB) 240-pin DDR3 1333 (pc3 10666)
Power supply: Cool Power Gamer Series cp-g880 880w 20+4-pin
Case: Raidmax Tornado ATX-238wu R

If anyone could give me any pointers, I would really appreciate it.

8 answers Last reply Best Answer
More about dead month
  1. I would reccomend a better company such as corsair, antec, seasonic, and pc power and cooling.
  2. yes your problem is bad PSU.
    Also r u sure you need 880W psu?
  3. amuffin: Ya, I was just trying to get something more powerful; cheaper. I know better now. :ange:

    Madchemist: Ya, but two within the same month and right after each other? I'm still suspicious that something else might be at fault.

    I don't NEED it, but I would like it so I can later sli a second 550 Ti.
  4. Best answer
    To sli 550 im pretty sure all u need is 650w
  5. So, both of you think it's just that it is a bad Power supply Manufac.? You don't think any of the other components are faulty could be faulty which is causing these PWR supplies to burn up?
  6. madchemist83 said:
    To sli 550 im pretty sure all u need is 650w

    Ya I'm looking at maybe getting a Cooler master, or Thermatake. The problem is doesn't have either of those in stock, and im thinking they will only give me credit back on the Cooler power (dead PSU).
  7. Try a $60 XFX Core Edition 650 ....will handle twin 550's w/ two PCI-E 6 pin connectors
  8. Best answer selected by Sir_Dino.
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