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Power Supply question

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GojanT   05-22-2009 at 06:19:06 PM

I am trying to make the following setup, but i have no idea what size power source to use. Is there either a site that will calculate it for me, or some advice from the members here? I tried simply adding things up, but i couldn't find the power usage for most of the parts.

Aspire X-Discovery Case
Intel Extreme DP45SG Desktop Board
Intel® Core™ 2 Quad Quad-Core Processor Q9650
2x4GB Patriot DDR3
Seagate 1.5 TB Serial ATA/300, 32MB Buffer
Pioneer BDC-2202A5PK Blu-Ray DVD-/+RW/CD-RW Combo
NVidia GeForce GTX 295

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Silver CPUs badge JohnnyLucky   05-22-2009 at 06:31:52 PM
- 0 +

Here is a link to one of the power supply calculators on the web:

http://www.antec.outervision.com/

Please note that the results are recommendations for wattage. They're usually overestimated because there are a lot of low budget, low quality psu's of questionable performance.

A high quality, high performance power supply in the 500 to 550 watt range can easily handle an overclocked quad core system and any single video card made. It could even power some of the mutiple card configurations.

There are over 400 technical reviews of power supplies over at www.jonnyguru.com

Reply to JohnnyLucky
GojanT   05-22-2009 at 07:14:30 PM
- 0 +

Hmm...it recommended 845 W...but that's 100% load and with an extra 30% built in....

Seems like considering i'm already spending about 1500 on this system for everything ELSE, another 40 bucks for the upgrade from 650w(what i had planned) to 850w isn't a big deal...

Message quoted 1 times
Reply to GojanT
theAnimal   05-22-2009 at 10:22:21 PM
- 0 +

If you're spending that much, why are you not getting an i7?

------------------------------ *How To Ask For New Build Advice*
HAF 922 | HX750
Rampage2Gene | i7 920 D0 | 6GB Gold 1600 | Hyper 212+
Caviar Black 640GB | HD3870
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Bronze CPUs badge DellUser1   05-22-2009 at 10:23:20 PM
- 0 +

GojanT wrote :

Hmm...it recommended 845 W...but that's 100% load and with an extra 30% built in....



You did something wrong.

------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to DellUser1

Silver CPUs badge JohnnyLucky   05-22-2009 at 10:30:16 PM
- 0 +

^5 +1 what DellUser1 said.

I'll bet for system type you selected quad sockets. Your motherboard only has a single socket for a cpu. Your motherboard does not have four sockets for four cpu's.

Reply to JohnnyLucky
GojanT   05-23-2009 at 01:38:58 AM
- 0 +

I know, i didn't select quad sockets, i selected single, but i figured out where i messed up, i accidentally changed the video type(from single card to SLI).

 

I may get a larger power supply anyway because it will leave me room to add another graphics card and such later on.

 

I'm not using an i7 because i can't find one as cheap...the i7 extreme costs more than twice my current CPU, and a normal core i7 2.93 GHz is still higher cost than what i'm currently planning, but for slightly lower clock speed and lower cache.

 

Message quoted 1 times
Message edited by GojanT on 05-23-2009 at 01:45:23 AM
Reply to GojanT
theAnimal   05-23-2009 at 06:18:06 AM
- 0 +

GojanT wrote :

I may get a larger power supply anyway because it will leave me room to add another graphics card and such later on.


4 GPUs scale very poorly.

Quote :

I'm not using an i7 because i can't find one as cheap...the i7 extreme costs more than twice my current CPU, and a normal core i7 2.93 GHz is still higher cost than what i'm currently planning, but for slightly lower clock speed and lower cache.


Core i7 920 is cheaper than Q9650. The lower cache doesn't matter, and it should easily clock to well over 3GHz.

------------------------------ *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
GojanT   05-23-2009 at 06:34:34 AM
- 0 +

What makes the i7 series so much better that you would recommend a 2.66GHz over a 3.0GHz that's only slightly more(the one's i've found have about a 30-40 dollar difference...so about 10%)?

I'm pretty new to choosing parts, so i don't really know what the differences are.

Reply to GojanT
mike99   05-23-2009 at 06:31:32 PM
- 0 +

:non: I7 is much faster than Core 2 Quad at same clock! Check benchmarks.

Mike

Reply to mike99
theAnimal   05-24-2009 at 01:24:52 AM
- 0 +

You will also have no possible future upgrade path with Socket 775.

------------------------------ *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
GojanT   05-24-2009 at 01:29:44 AM
- 0 +

Alright....i'll look into the i7's...

Reply to GojanT
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