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Is this PSU Sufficient (Seasonic 620W)

Last response: in Components
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February 3, 2013 6:51:15 PM

I've purchased the below components, and was pretty settled. Just had a conversation with a friend who thinks 620W might be a little light for the system. I researched it to the point of boredom, and don't ever plan for SLI, but do plan on overclocking my CPU and possibly a little on the GPU. Will the Seasonic 620W cut it?

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($223.79 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($33.04 @ Amazon)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($129.99 @ Microcenter)
Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory ($89.99 @ Newegg)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($91.77 @ Amazon)
Storage: Samsung 840 Pro Series 256GB 2.5" Solid State Disk ($226.99 @ Mac Mall)
Video Card: MSI GeForce GTX 660 Ti 2GB Video Card ($287.99 @ Microcenter)
Case: Corsair 200R ATX Mid Tower Case ($34.99 @ Newegg)
Power Supply: SeaSonic 620W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($79.99 @ Amazon)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.99 @ Microcenter)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($89.98 @ Outlet PC)
Other: Asus PCE-N15 ($26.99)
Total: $1335.50
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-02-03 15:49 EST-0500)

Best solution

a c 260 ) Power supply
February 3, 2013 7:00:42 PM
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PhilH930 said:
I've purchased the below components, and was pretty settled. Just had a conversation with a friend who thinks 620W might be a little light for the system. I researched it to the point of boredom, and don't ever plan for SLI, but do plan on overclocking my CPU and possibly a little on the GPU. Will the Seasonic 620W cut it?

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($223.79 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($33.04 @ Amazon)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($129.99 @ Microcenter)
Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory ($89.99 @ Newegg)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($91.77 @ Amazon)
Storage: Samsung 840 Pro Series 256GB 2.5" Solid State Disk ($226.99 @ Mac Mall)
Video Card: MSI GeForce GTX 660 Ti 2GB Video Card ($287.99 @ Microcenter)
Case: Corsair 200R ATX Mid Tower Case ($34.99 @ Newegg)
Power Supply: SeaSonic 620W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($79.99 @ Amazon)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.99 @ Microcenter)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($89.98 @ Outlet PC)
Other: Asus PCE-N15 ($26.99)
Total: $1335.50
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-02-03 15:49 EST-0500)


Hi - your friend is mistaken - the Seasonic 620 is a lot more than you need for
a system with one 660ti. realhardtech suggests a quality 450w unit and a minimum
of 24a on the +12v rail(s). You plenty more of both, you are good to go.

Tom
a b ) Power supply
February 3, 2013 7:04:23 PM

to back up toy's comments and prove your friend is clueless



you won't even break 350w total system power while gaming with a single GTX660ti

CPU: Intel Core i7-3960X @ 4.3GHz
Motherboard: EVGA X79 SLI
Chipset Drivers: Intel 9.​2.​3.​1022
Hard Disk: Samsung 470 (256GB)
Memory: G.Skill Ripjaws DDR3-1867 4 x 4GB (8-10-9-26)
Case: Thermaltake Spedo Advance

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February 3, 2013 7:46:21 PM

Best answer selected by PhilH930.
February 3, 2013 7:46:25 PM

Thanks for the quick replies.
a c 260 ) Power supply
February 3, 2013 7:48:02 PM

PhilH930 said:
Thanks for the quick replies.


enjoy your rig!
!