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Is 400w enough for my system?

My pc specs:AMD FX(tm)-8350 Eight-Core Processor
8.00 GB DDR3 ram 1333mhz
NVIDIA GeForce GTX 550 Ti
Asus m5a78l-usb motherboard
1TB Hard drive

I am having slight problems with this build but i think the power supply might be the problem the power supply is a casecom ATX 400w.
before i had the amd fx 8350 i had the fx4100 and had no problems with it so i just wanna be sure its the psu so i can get a new one and if it is the power supply that is causing the problems or you think it is please refer some good psu's for a decent price please help me with this thanks.
14 answers Last reply Best Answer
More about 400w system
  1. yep cheap psu you have enogh poewr in thereoy but you psu cant deliver it
  2. No, the PSU is not good enough. I would highly recommend a decent 500W PSU at least.
  3. kirilmatthew said:
    No, the PSU is not good enough. I would highly recommend a decent 500W PSU at least.
    so what PSU brand would you suggest then? i am not that great when it comes to psu's
  4. NorthernIrish said:
    kirilmatthew said:
    No, the PSU is not good enough. I would highly recommend a decent 500W PSU at least.
    so what PSU brand would you suggest then? i am not that great when it comes to psu's


    XFX, seasonic, antec or corsair are probably the best brands. I would certainly go with one of those.
    Edit: this PSU is a good option: http://pcpartpicker.com/part/xfx-power-supply-p1550sxxb9
  5. 400W is a slighly low , but it doesnt mean is the psu..... and your new cpu d ont need more power to run , above all it was working before with fx-4100.
    what kind of problem you have???
  6. badboyrog said:
    400W is a slighly low , but it doesnt mean is the psu..... and your new cpu d ont need more power to run , above all it was working before with fx-4100.
    what kind of problem you have???


    The new CPU does need more power to run. It consumes more energy.
  7. badboyrog said:
    400W is a slighly low , but it doesnt mean is the psu..... and your new cpu dont need more power to run , above all it was working before with fx-4100.
    what kind of problem you have???

    1st problem i get ping spikes on 2 games and 2 games only CS:GO and TF2 any other game is fine but once i seen my 8350 spike to 100% cpu usage when playing CS:GO. another problem i have been having but hasn't came up in a while is random blue screens but i thank that was because i updated my bios. and it just feels like i am not getting enough power out of this system as it is a decent build.
  8. kirilmatthew said:
    badboyrog said:
    400W is a slighly low , but it doesnt mean is the psu..... and your new cpu d ont need more power to run , above all it was working before with fx-4100.
    what kind of problem you have???


    The new CPU does need more power to run. It consumes more energy.

    i did a bit of research on this and there is only a 30wattage difference between the fx 4100 and the 8350 when under load so 30 watts cant be that much off a difference to cause problems now can it?
  9. PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($44.99 @ NCIX US)
    Total: $44.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2013-09-10 17:44 EDT-0400)
  10. SR-71 Blackbird said:
    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($44.99 @ NCIX US)
    Total: $44.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2013-09-10 17:44 EDT-0400)

    what if i were to get an nvidia geforce 670 or 680 would that 550watts be enough because i am think of getting one of those 2 cards.
  11. YES IT IS!
  12. Best answer
    If you want more headroom in the power dept.

    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: XFX 650W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($49.99 @ Newegg)
    Total: $49.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2013-09-10 18:17 EDT-0400)
  13. SR-71 Blackbird said:
    If you want more headroom in the power dept.

    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: XFX 650W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($49.99 @ Newegg)
    Total: $49.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2013-09-10 18:17 EDT-0400)

    thanks blackbird i think i will buy that very soon cheers.
  14. Thank you and have a great week ahead!!!!!!!!!
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