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Is 750W Sufficient?

post #1 of 19
Thread Starter 
Hi everyone,

I am have just decided to be a member of overclock.net. I have been reading the forum for about a week and find that this is the forum I am looking for. I have decided to build a gaming PC. The following is the current component I decided to build, so is not complete yet. My main issue is the Power Supplies. I wonder if I change to the Corsair HX620 will it be enough for drive all the component without shortage of power. I have not plan for the lighting part yet. The whole system will be on air. I will be overclocking my Q6600 to about 3.2Ghz and RAM too.

Core Component
Asus NVIDIA® 750i SLI (P5N-D)
Intel® Core™2 Quad Processors (Q6600)
XFX GeForce GTX 260 (GX-260N-ADF9)
Corsair XMS2 DHX Series (TWIN2X4096-6400C4DHX)
Barracuda 7200.10 SATA 3.0Gb/s 250-GB Hard Drive (ST3250410AS)
LiteOn Optical Storage DVD RW (LH-20A1P)
Cooler Master (CM690)
Corsair TX Series Power Supply Units (CMPSU-750TX)

Cooling & Lighting Component
Thermalright Ultra 120 Extreme
SunBeam Rheobus Extreme
Delta FFB 120 x 120 x 38 mm Series 3600 RPM (FFB1212SHE) X 8

Any comment or suggestion on my build will be most welcome. ^_^
post #2 of 19
A decent 600w would be enough.
So, try a coolermaster, tagan, etc.
Edit: Corsair HX620 would be fine
hektik skidz
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hektik skidz
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post #3 of 19
Thread Starter 
Hi dasparx,

Thanks for the quick reply. But as mention on the XFX website that GTX 260 run on non-SLI require minimium of 630W power supplies. I am a bit worry that the performance of the GTX 260 will not run at the max.
post #4 of 19
Well, the 630 watt is calculated of the amperage the lines can give.
But, a decent PSU like the HX620, can give more than the minimum amperage needed on the 12v line.
so you'll be fine

(On my 9600gso's box, it said i'd need a 600W psu for Sli, but i have a 500W and works totally fine , SInce it can give enough amp. on the 12v line)
Edited by dasparx - 6/23/08 at 8:58am
hektik skidz
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hektik skidz
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Sapphire Radeon R9 290 48GB 6x8 Corsair 1600Mhz Samsung 840 evo 120GB Toshiba 3TB 
CoolingOSMonitorKeyboard
Scythe Mugen 4 PCGH Windows 7 BenQ G2222HDL KeyCool 87 MX Browns 
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post #5 of 19
Quote:
Originally Posted by larrytan View Post
Hi dasparx,

Thanks for the quick reply. But as mention on the XFX website that GTX 260 run on non-SLI require minimium of 630W power supplies. I am a bit worry that the performance of the GTX 260 will not run at the max.
Anandtech did a review and showed that the 260 and 280 use less power then the 9800GTX series. My friend has the 750w Corsair PSU and he is able to run his setup just fine. So from experience and testing I have seen, you will be fine.
My System
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post #6 of 19
When it comes to PSU's - quality certainly trumps quantity. A GOOD 550W - 650W PSU with enough juice flowing down the rails is going to be far beeter then an OK 650W - 750W PSU. It all boils down to amperage on the rail.

The Corsair should work out just fine...
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ABS Black Pearl
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post #7 of 19
Thread Starter 
Thanks people for your precious time spend on me. love it man. ^^ So I will settle down on a 650W power supplies. So which manufacturer you people will recommend? i have one in mind. SilverStone 650W (DA650).
post #8 of 19
Silverstone would be fine.
But i myself would recommend a PC power&Cooling
hektik skidz
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CPUMotherboardGraphicsGraphics
Xeon L5639  Asus SABERTHOOTH X58 Sapphire Radeon R9 290 Sapphire Radeon R9 290 
GraphicsRAMHard DriveHard Drive
Sapphire Radeon R9 290 48GB 6x8 Corsair 1600Mhz Samsung 840 evo 120GB Toshiba 3TB 
CoolingOSMonitorKeyboard
Scythe Mugen 4 PCGH Windows 7 BenQ G2222HDL KeyCool 87 MX Browns 
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Corsair RM1000W DeepCool Pangu Modded WMO 1.1a Roccat Taito 
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Xonar DS 
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hektik skidz
(17 items)
 
  
CPUMotherboardGraphicsGraphics
Xeon L5639  Asus SABERTHOOTH X58 Sapphire Radeon R9 290 Sapphire Radeon R9 290 
GraphicsRAMHard DriveHard Drive
Sapphire Radeon R9 290 48GB 6x8 Corsair 1600Mhz Samsung 840 evo 120GB Toshiba 3TB 
CoolingOSMonitorKeyboard
Scythe Mugen 4 PCGH Windows 7 BenQ G2222HDL KeyCool 87 MX Browns 
PowerCaseMouseMouse Pad
Corsair RM1000W DeepCool Pangu Modded WMO 1.1a Roccat Taito 
Audio
Xonar DS 
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post #9 of 19
you could get away with a decent 500w psu.
Sold the 360!!!
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Sold the 360!!!
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post #10 of 19
I noticed you had 8 120x38 fans, a 120x38 fan will not work in the front of the case and might have clearance issues above the TRUE and the in rear of the case depending on how your going to use the fans.
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