Is my power supply sufficient for an MSI GTX 770?

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A
You'll need at last a 600W PSU and make sure to have minimum of 42 amps in a single +12V rail (that is not split). BTW, I have the same problem as you. Mine's a MSI GTX770 Twin Frozr also. Funny thing is, my 750W Thermaltake W0117RU PSU is unable to power it properly and PC reboots (without any error log) when I try to game with ultra/high settings. That happens ONLY because it doesn't have enough amps (42A) on a single +12V rail (It has four separate rails each with max. capacity of only 18 amps) although providing way more wattage than needed. I'm looking to buy a new PSU now meeting the requirements.
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Amit Roy

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Jan 13, 2014
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You'll need at last a 600W PSU and make sure to have minimum of 42 amps in a single +12V rail (that is not split). BTW, I have the same problem as you. Mine's a MSI GTX770 Twin Frozr also. Funny thing is, my 750W Thermaltake W0117RU PSU is unable to power it properly and PC reboots (without any error log) when I try to game with ultra/high settings. That happens ONLY because it doesn't have enough amps (42A) on a single +12V rail (It has four separate rails each with max. capacity of only 18 amps) although providing way more wattage than needed. I'm looking to buy a new PSU now meeting the requirements.
 
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hypergon

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Oct 17, 2013
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50A on 12V mean that that rail can supply up to 600watts (50A*12V) which is enough for a gtx770.

If your card has 2x 8pin connectors you should use them, card may end up with not enough juice supplied.

@amit your PSU is rated at max. 60A on 12V so you should have no problems using a 770 with it
 
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F1demon

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Sep 17, 2013
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Sorry about that- hadn't realized!
 
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