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What kind of power supply will i need?

Forum Homebuilt Systems : New System Build - What kind of power supply will i need?

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d3lap   05-10-2009 at 05:47:07 AM

ok so im looking to get a new pc. mild gaming but great performance. im looking at :
http://www.tigerdirect.ca/cgi-bin/ShoppingCart.asp

will a 750w power supply be effiecent?

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Rokez   05-10-2009 at 05:51:55 AM
- 0 +

Your link does not work so please just name the parts you wish to purchase.

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aevm   05-10-2009 at 06:07:48 AM
- 0 +

750W is probably overkill for "mild gaming". What kind of graphics card have you picked?

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Bronze Home Brew badge aford10   05-10-2009 at 06:14:31 AM
- 0 +

When choosing a psu, you can't just rely on the rated wattage. A psu is one of those items that you can't skimp on. It touches every part in the system. If it blows, it can take something with it. The better manufacturers are corsair, pc power & cooling, antec, OCZ, and seasonic. I suspect a 'mild' gaming rig will require ~500w from any of the above manufacturers.

------------------------------ CM HAF 932 - 300GB Velociraptor
GIGABYTE GA-EP45T-DS3R
E8500 - Sapphire 1Gb 4850
4G DDR3 OCZ Reaper 1333
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d3lap   05-10-2009 at 05:31:18 PM
- 0 +

ok so here is what im looking to get.

intel quad core q8200 processor
nvidia xfx mg 63mi motherboard
nvidia 4gb ddr2 memory
cosair 750w PSU
nvidia evga geforce 9800 gtx+ graphics
along with a case ultra etorque
and some fans
zerotherm chipset cooler
ultra performance vga cooler

tell me what you think

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Helloworld_98   05-10-2009 at 05:50:16 PM
- 0 +

yes it's overkill but drop the cpu, mobo and gfx card for a P2 940, 780G motherboard and 4770 gfx card.

Message quoted 2 times
Reply to Helloworld_98
JohnnyLucky   05-10-2009 at 05:52:13 PM
- 0 +

Well, if you are only going to use one video card and don't plan on using mutiple video cards, then a 750 watt power supply is more than sufficient for your needs. The very high quality psu's such as the Corsair TX750 you are looking at is designed for high end systems with two video cards in SLI or CrossFire mode.

If you are positive that you will only be using one video card, then a high quallty 500 watt power supply such as the Antec Earthwatts EA-500 will meet your needs. It can power any single video card made.

Here's a link to a technical review of the Antec EA-500:

http://www.jonnyguru.com/modules.p [...] ry&reid=35


Message edited by JohnnyLucky on 05-10-2009 at 05:55:05 PM
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d3lap   05-10-2009 at 06:02:37 PM
- 0 +

im going to be playing games like cod 4, waw 5(when it comes out) maybe a little crysis some CS. i want to try and stay away from AMD and am more into intel.

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d3lap   05-10-2009 at 06:05:15 PM
- 0 +

Helloworld_98 wrote :

yes it's overkill but drop the cpu, mobo and gfx card for a P2 940, 780G motherboard and 4770 gfx card.




is their something the matter with intel q8200? evga9800gtx+ and the xfx mg63mi mobo?

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Helloworld_98   05-10-2009 at 06:15:07 PM
- 0 +

yeah

1) the Q8200 only has 4mb of cache and a 2.33ghz clock speed while the P2 940 has 6mb of cache which the architecture handles far better and has a 3.0ghz clock speed.

2) 4770's when oc'd are better than the 9800GTX+ and use about 30w less, also cost less aswell. they get to about 850mhz if you use the rivatuner hack and even further if you have the ASUS TOP edition and up the voltage although they can get very hot.

3) you need a amd socket motherboard for an amd cpu and nvidia chipsets are rubbish.

Reply to Helloworld_98
JohnnyLucky   05-10-2009 at 06:30:19 PM
- 0 +

Helloworld-98 - I knew Nvidia was having some problems but didn't realise it extended to their chipsets for desktop pc's. Do you have any references for the info?

Reply to JohnnyLucky
theAnimal   05-10-2009 at 06:33:21 PM
- 0 +

Helloworld_98 wrote :

yes it's overkill but drop the cpu, mobo and gfx card for a P2 940, 780G motherboard and 4770 gfx card.



I would go with a 790GX mobo for the SB750.

+1 for the rest

------------------------------ *How To Ask For New Build Advice*
HAF 922 | HX750
Rampage2Gene | i7 920 D0 | 6GB Gold 1600 | Hyper 212+
Caviar Black 640GB | HD3870
 Reply to theAnimal
d3lap   05-10-2009 at 07:22:30 PM
- 0 +

Thanks for the advice. but for cost reasons i think im gonna stick with my current build. if i have problems with it i can always exchange it or sell it back.

Message quoted 1 times
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Bronze Home Brew badge aford10   05-11-2009 at 06:19:37 AM
- 0 +

If you want to stick in that price range with an intel cpu, then go with the e8400. It's got a much faster clock speed. The 2 extra slow cores aren't going to do you any favors.

------------------------------ CM HAF 932 - 300GB Velociraptor
GIGABYTE GA-EP45T-DS3R
E8500 - Sapphire 1Gb 4850
4G DDR3 OCZ Reaper 1333
 Reply to aford10
theAnimal   05-11-2009 at 06:18:39 PM
- 1 +

d3lap wrote :

Thanks for the advice. but for cost reasons i think im gonna stick with my current build. if i have problems with it i can always exchange it or sell it back.



The recommended parts are lower cost than your original selections.

------------------------------ *How To Ask For New Build Advice*
HAF 922 | HX750
Rampage2Gene | i7 920 D0 | 6GB Gold 1600 | Hyper 212+
Caviar Black 640GB | HD3870
 Reply to theAnimal
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