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Is my computer about to short circuit?

Last response: in Components
April 14, 2011 8:33:08 AM

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

More about : computer short circuit

a b ) Power supply
April 14, 2011 8:45:04 AM

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
April 14, 2011 9:00:18 AM

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.
Related resources
April 14, 2011 9:04:32 AM

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.
April 14, 2011 9:16:41 AM

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.

Best solution

a b ) Power supply
April 14, 2011 9:21:02 AM

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
April 14, 2011 9:28:50 AM

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.
April 14, 2011 11:26:23 AM

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
a b ) Power supply
April 14, 2011 12:31:50 PM

Seasonic #1

good choice
April 14, 2011 2:31:07 PM

Best answer selected by sancco.
a b ) Power supply
April 14, 2011 5:02:26 PM

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
April 14, 2011 9:05:52 PM

haha yeah i spent about 3 mins tossing it up but in the end i flipped a mental coin, bl gracefully