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How much will my core i5 build need?

Last response: in Components
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December 25, 2009 3:19:18 AM

I am having trouble with picking the right wattage for my system and i need some help to find a PSU for around $100 (give or take $20).
Here are the specs.

case: Thermaltake HAF-932

Motherboard: ASUS P7P55D

CPU: core i5 750

HDD: Western Digital 500G SATA 2 7200RPM 32M Green Power

RAM: GSKILL 4G(2x2G) DDR3 1333 PC 10666

Graphics card: HIS ATI HD 5750 1G DDR5

CPU cooler: Thermaltake V8

And i will be using this PC for gaming. I will also be using Microsoft Windows XP

More about : core build

December 25, 2009 3:55:43 AM

Quote:
500-600


Hi thanx for the reply, but i was wandering if there is a specific PSU u could reccomend me?
December 25, 2009 1:11:03 PM

corsair 550vx .. i am using it and its good .
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December 25, 2009 1:12:29 PM

good that u have haf 932 , the corsair would take in cold air from bottom and throw out hot air at back ... will not affect your case temps much ...

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a c 248 ) Power supply
December 25, 2009 7:47:22 PM
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Here are the official power recommendations for the ATI Radeon HD 5750 video card:

PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard

450 watt or greater power supply with one, 75 watt, 6-pin, PCI Express® power connector

600 watt or greater power supply with two, 75n watt, 6-pin, PCI Express® connectors for ATI CrossFireX™ technology in dual mode

The recommendations are for the entire system.

The Corsair VX550 would be an appropriate choice. Corsair has a reputation for high quality power supplies that consistently earn high marks in tecnical reviews. They are stable, reliable, and come with a 5 year warranty.

December 26, 2009 5:58:55 AM

I'd say get the corsair 650w just incase you need to crossfire them later on...
December 26, 2009 6:07:30 AM

hey guys thanks for replying, i was wandering what u people think of the Thermaltake Litepower 700W PSU?
a c 248 ) Power supply
December 26, 2009 6:27:58 AM

bubbatran - There is a technical problem with your recommendation. The Intel Core i5 750 is an LGA 1156 socket cpu that uses p55 motherboards. The cpu and motherboards were actually designed for mainstream use. The p55 motherboards only have one 16 lane PCI-Express connection. Additional connections are only 8 lane PCI-Express connections. Using two video cards in dual mode would reduce the configuration to two 8 lane connections. It would be better to use a single high end video card. A high quality 500 to 550 watt power supply is sufficient.

For mutiple video cards an Intel Core i7 cpu with an LGA 1366 socket and an x58 motherboard would be more appropriate for gaming. The x58 motherboards are available with two 16 lane PCI-Express connections that can actually be used in dual 16 lane configuration.
a c 248 ) Power supply
December 26, 2009 6:45:24 AM

Litepower seems to be an appropriate name for the psu. The current (amps) on the +12 volt rails is just a little bit "lite" for a 700 watt power supply and maximum power output is actually 600 watts. A high quality psu will have a +12 volt rail or rails rated at about 60 amps and can deliver close to their maximum power rating even at high temperatures.

It's usually the Thermaltake Toughpower and Purepower psu's that are reviewed.

December 26, 2009 8:48:02 AM

Well I know that.. I wouldn't think that he would be looking for a new board anytime soon...
December 26, 2009 7:49:40 PM

JohnnyLucky said:
Litepower seems to be an appropriate name for the psu. The current (amps) on the +12 volt rails is just a little bit "lite" for a 700 watt power supply and maximum power output is actually 600 watts. A high quality psu will have a +12 volt rail or rails rated at about 60 amps and can deliver close to their maximum power rating even at high temperatures.

It's usually the Thermaltake Toughpower and Purepower psu's that are reviewed.


Well according to new egg the Thermaltake Litepower PSU have two +12v rails, but it says they have a combined loading of 34A.
December 27, 2009 3:35:34 AM

550vx can easily do 5750 CF . i am running a 5850 with oc'ed i5 to 3.8 , 4 fans , 3 drives etc .
a b ) Power supply
December 27, 2009 3:40:13 AM

JohnnyLucky said:
bubbatran - There is a technical problem with your recommendation. The Intel Core i5 750 is an LGA 1156 socket cpu that uses p55 motherboards. The cpu and motherboards were actually designed for mainstream use. The p55 motherboards only have one 16 lane PCI-Express connection. Additional connections are only 8 lane PCI-Express connections. Using two video cards in dual mode would reduce the configuration to two 8 lane connections. It would be better to use a single high end video card. A high quality 500 to 550 watt power supply is sufficient.

For mutiple video cards an Intel Core i7 cpu with an LGA 1366 socket and an x58 motherboard would be more appropriate for gaming. The x58 motherboards are available with two 16 lane PCI-Express connections that can actually be used in dual 16 lane configuration.


The x8/x8 configuration of the P55 will not bottleneck ANY dual card setup known to man enough to make a difference. 2 5970s even see a <5% performance hit.

Look at Antec, not the Basiq series, Corsair, PC Power and Cooling, and Seasonic for great power supplies.
December 27, 2009 11:20:14 AM

corsair and pc power psu's are some of the best around .
December 28, 2009 2:30:33 AM

Thanks ti everyone for there comments, especially cyberkuberiah and JohnnyLucky.
and i have decided to get the corsair vx-550, I have already ordered it from u mart and will be picking it up on the 4th of January(1 day after my birthday).
December 28, 2009 5:45:27 AM

happy birthday in advance ! happy gaming on your new system :) 
!