how much PSU do i need

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senungas

Honorable
Jun 13, 2013
2
0
10,510
how much PSU do i need with this setup? i wonder if my 650w psu will be enough
im planning to upgrade my vcard from gtx 660ti to gtx 770 i wonder if my old psu will be enough
i dont plan to SLI or overclock

Video card: asus gtx 770
Cpu: i5-3570k, 3.4ghz
Heatsink: noctua nh-d14 cpu cooler
MOBO: asus p8z77-v le plus
CD rom: asus 24x dvd-rw
RAM: 8gb DDR3 pc3-12800
HHD: 1tb WD caviar black 7200
SSD: samsung pro 840 128gb
 
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senungas

Honorable
Jun 13, 2013
2
0
10,510


i wonder if my corsair tx650w v2 psu will be enough for my system if i upgrade my video card
will it have enough power to support my system with gtx770
 
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ko888

ko888

Titan
Feb 18, 2009
16,708
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84,990
For a system using a single GeForce GTX 770 graphics card NVIDIA specifies a minimum of a 600 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 42 Amps or greater and that has at least one 6-pin and one 8-pin PCI Express supplementary power connectors. NVIDIA is being overly cautious with the +12V 42 Amp spec when it should be more realistically 33 Amps or greater.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most important factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The Corsair Enthusiast Series TX650 V2 (SKU# CMPSU-650TXV2), with its maximum combined +12 Volt continuous current rating of 53 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with a single GeForce GTX 770 graphics card.
 
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