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Power Supply for my build

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  • New Build
  • Power Supplies
  • Systems
  • Product
Last response: in Systems
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December 23, 2012 4:11:48 AM

I want a reliable power supply for the following parts:

i7-3770k
Gigabyte z77-D3H
Samsung 840 pro -256gb
corsair vengence
Corsair Carbide Series 400R

EVGA 01G-P4-2650-KR GeForce GTX 650 1GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready Video Card

I've heard seasonic is a good brand, what size should I get? I'm going to get the essential parts first and the video card when I save another $100 so I need something that works for both loads. Like most I also like to connect a few devices via usb (keyboard, wireless mouse, a kindle, flash drives...Normal stuff) Not sure what power requrements I have.

I'm thinking something in the 450 to 650 W range, but really don't know. This is not something that I want to replace later.

Thanks,
-Cy

More about : power supply build

a b ) Power supply
December 23, 2012 4:24:52 AM

it the 12v plus line that you have to size right. intel ib chip rated for 77w.
http://ark.intel.com/products/65523
round that up to 100w to be safe.
the 650 cards rated for Maximum load: 64W nvidia looks for a 450w ps with a 20amp rail on the 12v. as min spec for there cards,
the cpu and the gpu going to take 200w. the lowest i would go is 500w but that not replacing your gpu or adding another one.
if your thinking of sli or swapping out the gpu with a faster one look into a 750w ps. with a power supply the 50-70 percent load is the sweet spot for power supplys.) any more then 70 percent and under high load they can shut down or ripple out.
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December 23, 2012 4:33:01 AM

@smorizio
Will I be fine for the time being w/o the video card? It seems like this would put my load well below 50% of the PS capacity. Do the other components draw like no power? I thought the mobo was around 100W draw.
I'm planning to go with the SeaSonic M12II 620, but this seems quite large for my needs. Especially without the video card. It might be like a year before I get it unless I can't get dual monitor's to work without it.

Thanks again.
-Cy
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a b ) Power supply
December 23, 2012 5:36:35 AM

I would go with:

Minimum Needed:
$42 shipped! Has 30A on the combined 12v Rails (used for GPU's mainly).

* 1 x 6 pin PCI-e power connector (used for GPU's up to AMD 7850 & nVidia 660)
* 2 yr. Warranty

Antec VP-450 450W ATX 12V v2.3 Power Supply
$39 @ Amazon!

Another option:
$46 - $20 MIRc = $26!! 32A on the 12v rail and is 80 Plus Bronze Certified!

* 1 x 6 pin PCI-e power connector (used for GPU's up to AMD 7850 & nVidia 660)
* 3 yr. Warranty

CORSAIR Builder Series CX430 430W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

Also
$70 - $15 MIRc = $55! Has 44A on the 12v rail!

* 80 PLUS Bronze Certified
* 5 Yr. Warranty
* 1 x 6 Pin and 1 x 6+2 pin (8 pin) PCI-e power connectors for any single GPU out right now!

XFX Core Edition PRO550W (P1-550S-XXB9) 550W ATX12V 2.2 & ESP12V 2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Active PFC Power Supply
JonnyGuru.com Review of this PSU.

$60 + $2 S/H - $10 MIRc = $52!! Has 38A on the 12v rail!

* 80 Plus Bronze Certified!
* Has 2 x 6+2 pin (8 pin) PCI-e power connectors
* 3 yr. Warranty
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December 23, 2012 6:13:15 AM

The XFX Core Edition PRO550W is actually just $40 after promo code and rebate at Newegg and also at NCIX US after rebate too.
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a b ) Power supply
December 23, 2012 6:20:24 AM

johnsonjohnson said:
The XFX Core Edition PRO550W is actually just $40 after promo code and rebate at Newegg and also at NCIX US after rebate too.

Yeah I missed the $15 Promo code and $15 MIRc!!!! :) 
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