Will Corsair CS550M PSU power 2 x Sapphire AMD Radeon R9 270X DUAL-X (+everything else)?

[aukh64]

Hi there,

I have a Corsair CS550M PSU which has been running great on my current system. I want to add an additional matching graphics card for better performance in FCPX. Therefore system will be

2 x Sapphire AMD Radeon R9 270X DUAL-X OC (2048 MB)
1 x Gigabyte Z87MX-D3H
1 x Intel Core i7 4770K
1 x SSD
1 x 3.5 HDD
4 x 8gb RAM

The PSU is 550W has two spare 6PIN outputs (8 Pin already occupied on current GPU) and the GPU's require 2 x 6 Pin.

Three questions:

1. Can I connect these directly or do they not carry enough current?
2. If no to Q1 can I use an 8 pin splitter from my current 8 pin to power both GPUs?
3. Is my PSU simply not powerful enough?

Thanks for your help.

Alex

 

[alexoiu]

Hi,

AMD R9 270X - On your average system the card requires you to have a 500 Watt power supply unit.
AMD R9 270X Crossfire - On your average system the cards require you to have a 700 Watt power supply unit as minimum.

http://www.guru3d.com/articles-pages/amd-radeon-r9-270-review,8.html