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Power supply for Dell XPS 420

I recently upgraded my GPU to GeForce GTX 660 the min power requirements on the box calls for a 450W psu... my Dell XPS 420 only has a 375W psu. Now what is happening is as I'm playing Diablo 3 about 5- 10 minutes into the game the system shutsdown and then restarts. I used driver booster to make sure all my drivers were up to date. Also one of the two fans on the GPU is pretty much completely blocked. Do I need a new psu?

Update 1/12/14: I checked the windows event log - there were three critical system errors that coincided with the times I was playing the game. One of the reasons given for the shutdown was sudden loss of power. I think it is obvious I need to upgrade my psu - I guess the only question left is how do I get the best value for my dollar?
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More about power supply dell xps 420
  1. Buy a couple cans of compressed air and get an old tooth brush to clean up ALL fans and dust...... (unplug the computer, be Careful....)

    Dell power supplies won't work. Buy a 500watt Corsair CX500......... (or CX600 if you can afford it)
  2. I would prefer XFX 550 PRO for PSU, better than CX series of Corsair. But do your case/cabinet have enough room to fit a standard ATX PSU, first make that sure, then think of buying a PSU.

    And try to clean your system from dust.
  3. There is very little dust, the fan is being blocked by big plastic piece that is part of another cooling system
  4. Very good, and what about the PSU !
  5. The link is not working !
  6. It works fine on my end. I'm using IE. If you get it to open, let me know what you think.
  7. No, I am still getting "Access Denied" on IE, Firefox. Just give the full info of make/model, that will do.
  8. Ultra LSP550 550-Watt Power Supply - ATX, SATA-Ready, SLI-Ready, 135mm Fan, Sleeved Cables, Matte Finish, 3-Year Warranty
    Item#: ULT-LSP550 | Model#: LSP550
  9. PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($59.99 @ NCIX US)
    Total: $59.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2014-01-21 19:39 EST-0500)
  10. Here is a decent one at a good price.

    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: EVGA 500W 80+ Certified ATX Power Supply ($34.99 @ Microcenter)
    Total: $34.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2014-01-21 19:41 EST-0500)
  11. Best answer
    squanto53 said:
    Ultra LSP550 550-Watt Power Supply - ATX, SATA-Ready, SLI-Ready, 135mm Fan, Sleeved Cables, Matte Finish, 3-Year Warranty
    Item#: ULT-LSP550 | Model#: LSP550


    Nope that's not a decent PSU, as I said earlier go with XFX 550 PRO a solid unit and best value for your $$.

    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($59.99 @ NCIX US)
    Total: $59.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2014-01-22 09:31 EST-0500)
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