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Corsair TX650 v2 for dual SAPPHIRE HD 7870 XT

Last response: in Graphics & Displays
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July 19, 2013 2:38:50 PM

Would the Corsair TX650 v2 be able to handle the below configuration without any issues? It has only 2X75 Watt 6-pin PCI Express power connector but I do have the adapters for 2 more.

DZ-77RE Board
i7 3770K (Stock Clock)
4 DDR3 ram
H100i Water Cooler
Wireless PCIe
2 x SAPPHIRE HD 7870 XT (Stock Clock)
256GB 830 Pro SSD
3TB 7200 HDD
Few regular case fans (no LEDs in any of them)
Few USB devices (Keyboard, Mouse, Card Reader, Passport HD)

Thanks!
July 19, 2013 8:37:16 PM

I would avoid anything less that a good quality 750W PSU for CF with those two cards. One clue is when a PSU only has 2 x 6 pin connectors. That usually indicates that it is only designed to provide power for 150W worth of graphic card (+75W from the slot). Each HD 7870 is a 175W card at max. That relates to 14.6A on the +12V rail for each card. It will probably work fine until you really get pushing the cards/processor... then you'll experience shutdowns or re-boots.
July 19, 2013 8:50:15 PM

I would really replace it :) .
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July 23, 2013 3:03:57 PM

clutchc said:
I would avoid anything less that a good quality 750W PSU for CF with those two cards. One clue is when a PSU only has 2 x 6 pin connectors. That usually indicates that it is only designed to provide power for 150W worth of graphic card (+75W from the slot). Each HD 7870 is a 175W card at max. That relates to 14.6A on the +12V rail for each card. It will probably work fine until you really get pushing the cards/processor... then you'll experience shutdowns or re-boots.


I apologize for the delay. I'm new to TomsHardware so I don't really know how it works.

My initial doubts were the same as the psu had just 2 6-pin connectors. Well, I've ordered the HX850 and hopefully works out well.
July 23, 2013 3:40:23 PM

I think you'll be happier knowing the PSU won't be underpowered. Good choice.
July 24, 2013 1:55:56 AM

Very Good Choice indeed.
!