hello i orderd a new graphics card its a sapphire radeon hd 6870 and im worried about the power supply but will it be able to run on this ? http://www.ebay.co.uk/itm/Aerocool-Strike-X-600W-80-Bronze-PSU-ATX2-3-14cm-Fan-Power-Supply-/170871508247?pt=UK_Computing_PowerSupplies_EH&hash=item27c8bc4d17