Hardware for 4x7970

[trancekat]

Hi All,
I'm looking to build a system with 4x7970's. I have the cards already, but am not sure as to what mobo/case/PSU's (and how many PSUs) to buy.

Can anyone please recommend some hardware for a build for around the $4k?

Thank you in advance for your time and help.

[epixoip]

This is our standard build:

Chenbro RM41300-FS81
LEPA G1600-MA
Gigabyte GA-990FXA-UD7
AMD FX-8150
CORSAIR CMZ16GX3M2A1866C9

Due to heat considerations I would only recommend using three GPUs max, leaving a one-slot gap in between each GPU so that they cool properly. With this setup your temps will stay < 70C under 100% load.

But this setup is capable of four GPUs if that's what you want to do.

[epixoip]

If you're feeling particularly adventurous, check out the SUPERMICRO SYS-7047GR-TPRF. But that's only if you're looking to really trip balls.