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Power supply

  • Radeon
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Last response: in Graphics & Displays
July 29, 2010 6:37:41 AM


Im currently looking for a new power supply for my computer as my old one is a PoS and i feel it is what causes my computer to restart every 30min when i play games.

Now i have a small list of 3 possible psu's that i can get today, main thing is i need it to be able to handle a Radeon HD5970.

Thermaltake 700w

Gigabyte 720w

Vantec 800w

Out of those 3 which would be a definite to run the pc / graphics card with no problem?

Thanks in advance

More about : power supply

a c 297 ) Power supply
July 29, 2010 6:46:46 AM

Why those 3 units? There are better ones out there for that price. The only one i could actually find a price for was that thermaltake one which wasnt impressing me once i saw the price. You can pick up the XFX 750W unit for less off of newegg, its a solid unit built by seasonic that has 62A(744W) on its 12V rail so it has more than enough power for a 5970.
a c 275 ) Power supply
July 29, 2010 6:55:09 AM

The Thermaltake is the best of the lot and more well known then the others as far as psu's go.
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a c 144 ) Power supply
July 29, 2010 6:55:28 AM

Agree with hunter here. There's a lot of better choices.
a b ) Power supply
July 29, 2010 6:57:39 AM

Like hunter asked is there a reason you are limiting yourself to those PSUs? How much are you looking to spend?
July 29, 2010 6:58:26 AM

Ok sorry i forgot a key part of the information.. I live in South Africa so getting some of the PSU's are out of the question sadly :( 

Ok the gigabyte is roughly the same price as the thermaltake, and the Vantec is close to $230.
a c 297 ) Power supply
July 29, 2010 7:00:47 AM

Ahh okay that makes more sense. Are you going to be buying online or from a local store, if online can you link to the site so we can check out their selection.
July 29, 2010 7:05:12 AM

It will be from a local store or online retailer. the online retailer i could prob get a bigger selection for import but will knock my bank account sadly and would put my computer our of commission for up to a month.
a c 297 ) Power supply
July 29, 2010 7:18:55 AM

From the looks of it, the odin is about 1k, i couldnt find the thermaltake or vantec units but i did find that you can grab a Corsair 750TX for 1300ish, im not sure if that pushes you out of your price range but if it doesnt i would definitely go for the 750TX over the 3 you listed above
July 29, 2010 7:28:15 AM

Sounds good, wasn't gonna go with a online retailer but i trust what everyone here at toms hardware says. Hope this stops my Computer from restarting all the time =/

Thank you very much for the help :) 

@Davcon i have never seen or heard of that online retailer but thank you have a place that i can compare and buy from.
Much appreciated
a b ) Power supply
July 29, 2010 8:27:00 AM

Yeah, go for a Corsair. The TX650 should be fine.
a b ) Power supply
July 29, 2010 4:21:00 PM

Not saying not to replace PSU, I would.

What have you looked at that tells you it is the PSU and not a Temperature issue, or a memory issue??

I would download/install CPUID HWMonitor.

I would start the program, leave run for 15 minutes at IDLE, doing nothing.
Then I would run
Prime 95 and monitor (a) Your +12 V and + 5 V rails (Min values are 11.4 (I use 11.6 for Min) for +12 and +4.75 Min for +5 V rail if Either min is reached PSU is definetly bad. Also Monitor Temps. Leave running for a couple of hours, if possible and not approaching voltage mins and temp max. This will check if you have memory errors causing a problem.
For Prime95:

To check GPU, I use furmark. With this you can also verify your +12 is staying in limits (+/- 5% of 12) and verify your GPU temps.
For Fur mark:

Happy hunting on that PSU. I have relatives in England and when they are visiting they stock up on items that are avail/cheaper here.

Here is a good link on PSU quality: