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Is corsair 650w psu enough for gtx560ti sli cards

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  • CPUs
  • SLI
  • Corsair
Last response: in CPUs
July 22, 2011 7:04:54 PM

i have asus p8p67 pro board im already using gtx 560ti and i want to add an another one and activate sli my psu is corsair 650w psu is this power enough or i should replace the psu or add an another one if i had to add how to do it..

More about : corsair 650w psu gtx560ti sli cards

a b à CPUs
July 22, 2011 8:34:51 PM

That's 500 watts already on the SLI... I Recommend getting the Corsair Tx750 v2 or Corsair Tx850 v2...
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a b à CPUs
July 22, 2011 8:54:14 PM

That would be enough. a GTX 560ti usually uses no more than 160-180w on full load while the cpu should be around 95w under full load or more. Even when under full load on stress programs, you would probably be around 400watt's on the 12v rails. More than enough for a quality psu from a reputable company such as corsair.

Only time where you'll even see them running at these power levels are when you're running a stress testing program. Most of the time, it will not get that high. A corsair tx650 is more than enough to power two gtx 560ti's. =]
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a c 173 à CPUs
July 23, 2011 2:10:34 PM

The 650 watt PSU will run your system, but I estimate that your PSU will be running at around 85% of capacity at full system load.

I would put in a good 750 watt PSU.
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a b à CPUs
July 23, 2011 4:17:52 PM

jsc said:
The 650 watt PSU will run your system, but I estimate that your PSU will be running at around 85% of capacity at full system load.

I would put in a good 750 watt PSU.

The way I understand PSU's that would have the unit at maximum efficiency or very close to it.
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a b à CPUs
July 23, 2011 4:31:19 PM

Just get a Corsair Tx750 V2 on it and your good... Overclocking the Video Card dont use a lot(Around 10 watts or so) until you start overvolt it(Getting higher clock)...
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a b à CPUs
July 23, 2011 4:36:21 PM

legendkiller said:
Just get a Corsair Tx750 V2 on it and your good... Overclocking the Video Card dont use a lot(Around 10 watts or so) until you start overvolt it(Getting higher clock)...

Overvolting any of the Fermi cards could well end in tears and a pair of OC'd 560Ti's and an OC'd 2600k can be run by a five year old 620HX PSU.
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a b à CPUs
July 23, 2011 5:07:47 PM

Mousemonkey said:
Overvolting any of the Fermi cards could well end in tears and a pair of OC'd 560Ti's and an OC'd 2600k can be run by a five year old 620HX PSU.

He's running 560Ti in SLI not in single card... 560Ti SLI requires more power or twice the power of a single 560Ti so i wouldn't compare it an single OC 560Ti+OC 2600k... Also Overvolting dont usually lead to tears(depends how much you OV it) but sometimes leads to winner
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a b à CPUs
July 23, 2011 5:11:56 PM

legendkiller said:
He's running 560Ti in SLI not in single card... 560Ti SLI requires more power or twice the power of a single 560Ti so i wouldn't compare it an single OC 560Ti+OC 2600k... Also Overvolting dont usually lead to tears(depends how much you OV it) but sometimes leads to winner

So why would a single card need such a large PSU?
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a b à CPUs
July 23, 2011 7:47:12 PM

Mousemonkey said:
So why would a single card need such a large PSU?

IDK, people cant really estimate how much power they need, they just needa get a 700Watts on a 1grand build or at least i seen on nearly every 1grand build...
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a b à CPUs
July 23, 2011 8:22:39 PM

legendkiller said:
IDK, people cant really estimate how much power they need, they just needa get a 700Watts on a 1grand build or at least i seen on nearly every 1grand build...

Like I said earlier, that rig could be run by a five year old 620w PSU and I know that for a fact.
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July 24, 2011 9:19:30 AM

my psu is corsair 700w ..in future i will sli my card ..my mobo is p67a-gd55
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a b à CPUs
July 24, 2011 12:33:12 PM

Depends on what cpu that you have, if your overclocking, and what other components are.
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a b à CPUs
July 24, 2011 12:33:54 PM

Here is Guru3D's power supply recommendation:

GeForce GTX 560 Ti
On your average system the card requires you to have a 500 Watt power supply unit.

GeForce GTX 560 Ti in 2-way SLI
A second card requires you to add another ~175 Watts. You need a 700+ Watt power supply unit if you use it in a high-end system (800+ to a KiloWatt is recommended if you plan on any overclocking).
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a c 173 à CPUs
July 24, 2011 1:57:17 PM

Seems to be a common question.

Something like a Corsair TX650 would work , but you would have little in reserve.

I'd use something like a TX750V2.

By the way, if you are going to overclock only the CPU, that will not add more than about 25 watts to the load on the PSU with any modern Intel CPU.
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a b à CPUs
July 24, 2011 2:41:50 PM

This next topics has been merged by Mousemonkey
  • How much watts is required run gtx 560ti in sli
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    a b à CPUs
    July 24, 2011 2:43:06 PM

    @OP, Stop making duplicate threads please.
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    Best solution

    July 28, 2011 5:17:14 PM

    Hey Buddy Don't Worry, I Had Run 2x GTX 560 Ti [Over-Clocked] On 600W [NON Branded PSU, The Worst One ;)  ], & The Over-Clocked Cards Were Running Stable ! ;)  !

    &

    That Meanx You Can Run Over-Clocked 2x GTX 560 Ti On That CORSAIR PSU, Don't WOrry, Am With You ;)  !
    Share
    July 29, 2011 6:56:37 AM

    Best answer selected by vishalaestro.
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    July 29, 2011 7:08:05 AM

    Mousemonkey said:
    @OP, Stop making duplicate threads please.

    ban hammer
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    a b à CPUs
    July 29, 2011 7:10:47 AM

    XeeshanRahat said:
    Hey Buddy Don't Worry, I Had Run 2x GTX 560 Ti [Over-Clocked] On 600W [NON Branded PSU, The Worst One ;)  ], & The Over-Clocked Cards Were Running Stable ! ;)  !

    &

    That Meanx You Can Run Over-Clocked 2x GTX 560 Ti On That CORSAIR PSU, Don't WOrry, Am With You ;)  !

    Have you ever stress test your computer to maximum/near max? There's a peek were your computer will shutdown due to overwattage... LMSAO...
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    July 29, 2011 7:16:02 AM

    legendkiller said:
    Have you ever stress test your computer to maximum/near max? There's a peek were your computer will shutdown due to overwattage... LMSAO...


    Any One Typing Like This Is A Troll #J.U.S.T.S.A.Y.I.N.G
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    a b à CPUs
    July 29, 2011 1:06:37 PM

    This topic has been closed by Mousemonkey
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