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[Solved] What Power supply should I get?

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - [Solved] What Power supply should I get?

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Best answer from JohnnyLucky.

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DryMan   08-30-2009 at 05:30:52 PM

Hi guys!

I'm planing on building a new rig, but I'm not sure what Wattage to get in terms of power supply. And I've used some of those online power supply calculators but they gave me different results... :s

So I'm planing on getting the following.

Asus P6T Deluxe V2
Intel i7 Core 920E 2.66ghz
XFX GTX295 1792MB (576M) DDR3
Corsair PC3 1600MHz CL9 (12GB)
WesternDegital 1TB 32MB
x2 WD 320gb (in raid 0)
Asus 24X DvD+-RW
Creative SB X-Fi Titanium Fatalty Pro
CoolerMaster V8 Cooler

And if some one could maybe point me a the right brand of power supplies too

Any help would be much appreciated :)

Thank you

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Best answer from JohnnyLucky
According to several technical reviews I looked at a few minutes ago, an overclocked Intel Core i7 system with a single GTX 295 used a grand total of about 330 watts at full load. At idle it was just under 200 watts. This was total power draw at an electrical wall oulet. That means it was total power draw for the entire system with all components. In one technical review the system was easily powered by a high quality Corsair HX620 power supply. Different technical reviews showed slightly different figures but they were fairly close to each other.

A high quality 700 to 750 watt power supply such as those offered by Corsair, PC Power & Cooling, and Seasonic is more than is necessary to power your system.
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obsidian86   08-30-2009 at 05:43:40 PM

corsair 850,or any antec, ocz, pc power&cooling, seasonic, silverstone 750+ watt would do

Reply to obsidian86
DryMan   08-30-2009 at 06:18:53 PM

Thanks

so what if I got a:
Intel i7 Core 950E 3.06ghz
and over clock it to 3.6 - 3.8ghz

would the 850w still be suffeicent?

Reply to DryMan
Silver CPUs badge JohnnyLucky   08-30-2009 at 06:22:55 PM
Best answer

According to several technical reviews I looked at a few minutes ago, an overclocked Intel Core i7 system with a single GTX 295 used a grand total of about 330 watts at full load. At idle it was just under 200 watts. This was total power draw at an electrical wall oulet. That means it was total power draw for the entire system with all components. In one technical review the system was easily powered by a high quality Corsair HX620 power supply. Different technical reviews showed slightly different figures but they were fairly close to each other.

A high quality 700 to 750 watt power supply such as those offered by Corsair, PC Power & Cooling, and Seasonic is more than is necessary to power your system.


Message edited by JohnnyLucky on 08-30-2009 at 06:23:34 PM
Reply to JohnnyLucky
obsidian86   08-30-2009 at 06:37:02 PM

cpu's an cpu clocking doesn change power requirements to drastically the 850 would be fine even clocked to over 4ghz and an for upgrades over the yrs


Message edited by obsidian86 on 08-30-2009 at 06:37:55 PM
Reply to obsidian86
Bronze CPUs badge jsc   08-30-2009 at 08:53:21 PM

When I OC'd my Q6600 from 2.4 GHz to 3.6 GHz, current through the CPU power plug went from about 8 amps to 9.5 amps. Considering the power demands of a complete system, the increase that an OC'd CPU needs will be virtually insignificant.

Reply to jsc
jtt283   08-30-2009 at 09:03:54 PM

A solid 550W PSU like an Antec Truepower New or Corsair VX would be sufficient.

Reply to jtt283
Silver CPUs badge JohnnyLucky   08-30-2009 at 10:45:40 PM

I agree with jtt283 - A high quality power supply like the Corsair VX550 can easily power your system.

The general rule of thumb is a high quality 500 to 550 watt power supply can easily handle an overclocked system with any single video card made.

Here's a link to a technical review of the Corsair VX550:

http://www.jonnyguru.com/modules.p [...] ry&reid=62

Message quoted 2 times
Reply to JohnnyLucky
croc   08-30-2009 at 11:29:34 PM

JohnnyLucky wrote :

I agree with jtt283 - A high quality power supply like the Corsair VX550 can easily power your system.

The general rule of thumb is a high quality 500 to 550 watt power supply can easily handle an overclocked system with any single video card made.

Here's a link to a technical review of the Corsair VX550:

http://www.jonnyguru.com/modules.p [...] ry&reid=62



Keep preaching..... But I fear that the choir is all that is listening. I think I'll just give up and start recommending PCP&C 1000w or higher for any and all builds....

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 Reply to croc
Bronze CPUs badge cjl   08-31-2009 at 01:22:12 AM

JohnnyLucky wrote :

I agree with jtt283 - A high quality power supply like the Corsair VX550 can easily power your system.

The general rule of thumb is a high quality 500 to 550 watt power supply can easily handle an overclocked system with any single video card made.

Here's a link to a technical review of the Corsair VX550:

http://www.jonnyguru.com/modules.p [...] ry&reid=62


550 is a hair low for a highly overclocked i7 and a 295. It would work, definitely, but I'd probably go with something like a 650 just for a little more headroom. A 295 is fairly power hungry.

------------------------------ Asus P6T deluxe
i7 965 @ 4.2GHz (200*21), 1.384V
12GB Corsair Dominator DDR3-1600 CAS 7
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