How much Power do I need

I am not sure how large of a power supply to buy for the following build:

Intel Core i7 920 Nehalem 2.66GHz Processor
ASUS P6T Deluxe V2 Intel X58 MoBo
EVGA GeForce 9500 GT 1GB Video Card
G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM 1333 (PC3 10666)
2x Western Digital VelociRaptor 300GB 10000 RPM Internal Hard Drive
LG Internal Blu-ray/HD DVD-ROM & 16X DVD±R DVD Burner
Thermalright Ultra 120 eXtreme - 1366 RT CPU Heatsink+Fan
3 Case Fans
And all the other little stuff...

I plan on overclocking it, and have read that to overclock the i7 to around 4GHz uses approx 400W, but I have no idea how much extra power I need, because I don't want to run a power supply over 90%/95% and have it burn out on me either.

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I would go for a corsair or pc power and cooling 750w. Newegg had some models for under $100 after rebate.

Reply to o1die

stevestock wrote :

EVGA GeForce 9500 GT 1GB Video Card

If you're using the system for gaming that is a very poor choice.

For that system the Corsair VX550 or HX520 is plenty.

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stevestock wrote :

I am not sure how large of a power supply to buy for the following build:

Intel Core i7 920 Nehalem 2.66GHz Processor
ASUS P6T Deluxe V2 Intel X58 MoBo
EVGA GeForce 9500 GT 1GB Video Card
G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM 1333 (PC3 10666)
2x Western Digital VelociRaptor 300GB 10000 RPM Internal Hard Drive
LG Internal Blu-ray/HD DVD-ROM & 16X DVD±R DVD Burner
Thermalright Ultra 120 eXtreme - 1366 RT CPU Heatsink+Fan
3 Case Fans
And all the other little stuff...

I plan on overclocking it, and have read that to overclock the i7 to around 4GHz uses approx 400W, but I have no idea how much extra power I need, because I don't want to run a power supply over 90%/95% and have it burn out on me either.

Pardon me, but what is the main purpose of this build?

Reply to g3force

A 550W would work fine. I'd go with Corsair. Of course, if it is a gaming build, that GPU is a very poor choice, as stated above.

Message edited by cjl on 06-18-2009 at 06:24:09 AM

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

theAnimal wrote :

If you're using the system for gaming that is a very poor choice.

For that system the Corsair VX550 or HX520 is plenty.

I plan on using this build mainly for gaming, video editing, and collegework. What GPU would you suggest for such a build? I don't need anything crazy, I mainly play TF2, COD, and Left4Dead. Just looking for reliability decent performance as cheap as possible; don;t need to play anything on high settings.

Maybe the GeForce GTX 260 w/216cores?

Message edited by stevestock on 06-18-2009 at 05:06:57 PM

Reply to stevestock

I recommend the GTX 260 216 cores, great card. Also 650w should be plenty, even with a gtx 260 and a i7, but don't expect to get two gtx 260's on a 650w power supply, for sli you are looking at a 750w.

------------------------------ http://www.boostingmoney.com
Reply to Tech-Boy

Power supplies are a great question especially with the i7. I originally had a Q6600 88ooGTX Extreme and 4GIGS DDR2 on a 680iLT mobo. My 600 watt cheapo brand (I forget) was making a loud noise. I got a Corsair TH650X. I then order an i7 920, 6 gigs of DDR3 tri channel 1333MHZ, Asus P6T Deluxe. I salvaged my 8800GTX since it was a great card and I was not ready to upgrade GPU's. My 8800GTX goes out one month into being used with the i7. I baught a GTS 250 OC and Crysis keeps crashing now. I cannot keep Crysis running past 5 or 10 minutes. BFG the maker of that POS card said that my 12 volt system should not be at 11.4 which they said could cause a problem. I do not think the 650 watt power suplly is enough for my specs. Does anyone know of a more recent power supply estimator or a method of calculating the needed voltages?

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Reply to ryanhell078

ryanhell078 wrote :

Power supplies are a great question especially with the i7. I originally had a Q6600 88ooGTX Extreme and 4GIGS DDR2 on a 680iLT mobo. My 600 watt cheapo brand (I forget) was making a loud noise. I got a Corsair TH650X. I then order an i7 920, 6 gigs of DDR3 tri channel 1333MHZ, Asus P6T Deluxe. I salvaged my 8800GTX since it was a great card and I was not ready to upgrade GPU's. My 8800GTX goes out one month into being used with the i7. I baught a GTS 250 OC and Crysis keeps crashing now. I cannot keep Crysis running past 5 or 10 minutes. BFG the maker of that POS card said that my 12 volt system should not be at 11.4 which they said could cause a problem. I do not think the 650 watt power suplly is enough for my specs. Does anyone know of a more recent power supply estimator or a method of calculating the needed voltages?

Should've started a new thread for this.

The TX650 is more than enough for your system. How did you measure the 11.4V? If you didn't use a DMM then you should.

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theAnimal wrote :

Should've started a new thread for this.

The TX650 is more than enough for your system. How did you measure the 11.4V? If you didn't use a DMM then you should.

I am using a few different pieces of software to obtain voltages. The first is System Information for Windows (SIW), and the next is PC WIzard (upon suggestion by BFG Tech). PC Wizard shows 11.4 on the 12 volt pretty regularly. SIW reports the 12 volt as 12.10 . I would like to see something that is a little more real time and I already questioned the accuracy of either test. I am unsure what a good software is to determine if these voltages are the cause of my Crysis crashes.

Also: I am tempted to move this to a new thread if you think I should. Thanks for your help!

Reply to ryanhell078

Software readings cannot be trusted. Use a DMM.

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theAnimal wrote :

Software readings cannot be trusted. Use a DMM.

Thanks. I have to pick my meter up from a friends acrost town.

Reply to ryanhell078

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