Upgrading

[Vaad]

I am thinking about upgrading my 3XS Z77 Performance GTX.
I want to SLI the Evga GTX 680 that is currently in the system. But I am wondering if my PSU will be up to the job. Its a Corsair TX650M ENTHUSIAST 650W PSU Would like to know if Ben and the guys at scan think that this PSU will be up to the task of running SLI.

[herulach]

Tx650m only has 2 pcie Power plugs, if it had the 4 you'll need I'd say the power would be marginal anyway.

[Ben @ Scan]

Hi Vaad

You would need a bigger PSU for 2 x 680s maybe a 800 watt or higher would be a more realistic option

Regards

Ben

[rfu3]

I reckon you can get away with 700-800W but 650W seems a bit borderline. Although you can use PCI-E adapters try to get a PSU with at least 2x 6+2PCI and 2x 6 pci (4 total).
I recommend the XFX Black 750W / Seasonic 750W or a Corsair HX / AX unit. BeQuiet also make some pretty nice PSU's but worth checking reviews. For me 5v/12v rail stability and low noise levels were the priority. Most come with a 5 or 7 year warranty so I recommend don't skimp and consider it an investment.