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PSU Wattage

3 Sep 2014, 19:44 PM
#1
avatar of syk08024966

Posts: 23

Hi

Few months ago i bought a pc with the following specs:

Intel i7-4770 3.4ghz
Nvidia geforce 760 2gb
8gb Ram

By mistake i ordered it with a 500 watt PSU. Normally i choose 600+ . Should i get a more powerful psu to get the full potential out of the hardware or is 500 watts suffice?

Also my graphic settings are high on everything except AA on low. I was disapointed i couldnt run the game maxxed out and wondered if it should be possible with my setup.

Thanks for your help!
3 Sep 2014, 20:45 PM
#2
avatar of aradim

Posts: 110

Wattage doesn't mean much, what you need to look at is the wattage on the 12V-rails.

Never compromise on the PSU, also a 430watt certified PSU is better than a 600 watt cheap one.
3 Sep 2014, 20:51 PM
#3
avatar of syk08024966

Posts: 23

jump backJump back to quoted post3 Sep 2014, 20:45 PMaradim
Wattage doesn't mean much, what you need to look at is the wattage on the 12V-rails.

Never compromise on the PSU, also a 430watt certified PSU is better than a 600 watt cheap one.


Thanks for your help. How can i check the wattage on the 12V-rails?
4 Sep 2014, 05:46 AM
#4
avatar of Lümmel
Patrion 14

Posts: 542 | Subs: 1



Thanks for your help. How can i check the wattage on the 12V-rails?


Should be printed on the PSU itself. Otherwise you can find it on the datasheet, which you can find in the interwebs.
4 Sep 2014, 12:00 PM
#5
avatar of syk08024966

Posts: 23



Should be printed on the PSU itself. Otherwise you can find it on the datasheet, which you can find in the interwebs.


Thanks. I cannot check until saturday. What specifications should i look for when purchasing a good psu?
4 Sep 2014, 15:43 PM
#6
avatar of PingPing

Posts: 329

Never - EVER - cheap out on a PSU.

People spend hundreds on a CPU, and some even over a THOUSAND on a GPU...yet one bad PSU, you can risk it all.

I personally would be going at a PSU over 650 for that set up - you might want to go an AIO cooler set up later, maybe a second GPU, you'll need the watts.

That said - brand recommendations - Seasonic and Corsair are 2 you can bank on, XFX is another. Seasonic make internals for other manufacturers also, so a bit of research can do you well.

The best resource there is for PSU can be found here: http://www.jonnyguru.com/
4 Sep 2014, 16:12 PM
#7
avatar of BlueyWolf

Posts: 4

Corsair 800 would be nice you would use it many many years
4 Sep 2014, 19:38 PM
#8
avatar of syk08024966

Posts: 23

Thanks for all the advise. Any recommendations between these 2?:


Corsair CSM 650W Semi Modular 80+ Gold Power Supply. £59.49 inc shipping.

Black Coloured PSU with a 120mm Silent Cooling Fan
Equipped with a Single 12v Rail Delivering upto 62 Amps
Equipped with 4 PCI-E Connectors for Graphics Cards


Coolermaster GM-Series 650W Semi Modular 80+ Bronze Power Supply. £54.50 inc shipping.

Black Coloured PSU with a 120 Silent Cooling Fan
Equipped with a Single 12v Rail Delivering upto 52 Amps
Equipped with 4 PCI-E Connectors for Graphics Cards


Do you think the corsair is worth the extra money? P.s. Didnt think psu's were so expensive!
5 Sep 2014, 00:50 AM
#9
avatar of Budwise
Admin Red  Badge
Donator 11

Posts: 2067 | Subs: 2

500W if a decent PSU should be fine for your setup. If you plan to overclock heavily or upgrade to a more power hungry GPU or SLI then send it back and get a bigger one.
5 Sep 2014, 01:48 AM
#10
avatar of Nuclear Arbitor
Patrion 28

Posts: 2470

in order to find out what kind of PSU you're going to need you need to check the wattages of your CPU and GPUs and factor in some overhead. also check the amps your GPUs need and check the 12V rail(s) of the PSU. further more you need to make sure you have enough of each connection type (and/or molex/4-pin convers) to connect all your devices.

the other thing to keep in mind is the warranty options the devices comes with (ie, the ones you don't have to pay more for). i had a PSU failure that was BSODing my computer because of something related to te graphics card. got an RMA# from thermaltake, sent the PSU in, they sent me back a whole new unit, and now i have two sets of cables i'll never use. nearly 400$ PSU though.
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