PSU or Grafics card problem?

[Rizzler]

Hi, i have a powersupply i got back in 2007 http://www.komplett.se/k/ki.aspx?sku=324818

I was just wondering if this thing can run 2X Radeon HD 5850 cause if i have both of them in my computer and start i have a blank screen, if i remove one of the cards the computer starts up like it should, is something wrong or is the powersupply possibly not doing what it should becuase of age ?

 

[refillable]

I think the PSU has problems or not enough, at least 50A on +12V in my opinion is needed for 5850 crossfire.

This will be a good replace http://www.komplett.se/k/ki.aspx?sku=657686 .

 

[JackNaylorPE]

http://www.amd.com/us/products/desktop/graphics/ati-radeon-hd-5000/hd-5850/Pages/ati-radeon-hd-5850-overview.aspx#3

500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in dual mode).