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Is my computer about to short circuit?

Hi all,

I'm kinda worried I might be over working my current PSU. I recently upgraded a few parts, here's my current setup.

PSU: Vantec ION2+ 600Watt PSU Ultra Quiet SLI (2 years old, on 24/7)
MB: ASUS P6T x58
CPU: i7-920 @ stock
RAM: 3x Kingston 2GB DDR3 1333
GPU: Gigabyte 6950 1GB OC @ stock
HDD: WD Green 1.5TB (in for repairs)
HDD: WD Green 1.5TB (in for repairs)
HDD: WD Caviar 500GB
HDD: WD Velicoraptor 150GB
SSD: OCZ 60GB Vertex 2
CASE: Antec Nine Hundred 2 (fans on full speed)


If I need a new power supply, what's a decent wattage and brand to last me another two years and let me upgrade with no problems? I'm kinda worried that my current PSU is gonna short circuit and destroy my whole system any second :whistle: Seen it happen before.

Thanks in advance
11 answers Last reply Best Answer
More about computer short circuit
  1. try this to get a an idea where you should be at
    this PSU calculator is about the most accurate I have
    seen though usually over estimates which is not a bad thing
    remember to be under %80 of wattage
    in your case you want to be under 480 watts as an average
    adjust option in psu calc to show what your heaviest load is
    if your heaviest load wattage usage is below 480 then your good
    a little over isnt bad
    remember it is not common to draw peak
    alslo look at amperage on your 12v rails
    vantec from reviews seems decent

    link to psu calc

    http://extreme.outervision.com/psucalculatorlite.jsp
  2. A 700W PSU would probably handle anything short of 3-way SLI/Crossfire. Let's say you want another 6950 in the future. A good 700W PSU would handle that just fine.

    These days, in a high-end gaming rig, it's the GPU that dictates your PSU needs, seeing as they consume more than everything else.
  3. Thanks king smp,

    I've tried a few calculators but that one's by far the best. It gave me a reading of 477 recommended and 606 recommended with 30% ageing. I think I should go get a new PSU just to be safe.

    As for the amperage and voltage and rails and the such, it's way over my head. I just need a rig for some comfy gaming :P.

    Looking at PSU's now, considering a 850W Seasonic S12D for $AU199. Next step up is a 1000W CM Silent Pro Gold for $AU259, and I can't imagine spending that much money on a PSU.
  4. That'd be fine. You should always stay within 20-80% of the PSU's rating, because that's usually where it's most efficient. Plus, because of your intention to upgrade, you should give a nice headroom for your PSU.
  5. Best answer
    i am not an expert but Seasonic is recognized as the best
    850w at current setup is plenty
    from what gracefully said even handle CF 6950s
    sounds like a good deal to me

    and would have old psu as backup
  6. Other things to consider:

    Warranty (Good PSUs have 5 or more)
    80 PLUS ratings (Get a PSU with 80 PLUS Silver or Gold, preferably)
    6/8-pin power connectors (High wattage PSUs usually have a lot of them)
    Modular or not (Modular PSUs help with cable management, as they let you remove any cables you don't need)

    There are other stuff like active PFC, (over/under) (voltage/current) protection, but most PSUs in the 600+ range have them as a standard already.
  7. the seasonic s12d 850w has some pretty good reviews and a 80 PLUS silver rating, so it sounds reliable and powerful enough to let me forget about whether my computer can handle the next part upgrade or not. :P

    thanks for the help guys
  8. Seasonic #1

    good choice
  9. Best answer selected by sancco.
  10. Thank you for selecting me as best answer
    too bad it cant go to two people at same time
    Gracefully gave some great answers and
    deserve to split points with me
  11. haha yeah i spent about 3 mins tossing it up but in the end i flipped a mental coin, bl gracefully
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