It's a Bestec 300w PSU, standard ATX. It should have no problems. Make sure the card is properly plugged into the PCI-Ex16 socket and clipped in place. There's a chance that a SATA plug or 2 may be interfering with it. If so turn off the PC, switch to another plug that won't be blocked and reboot. Make sure your Monitor is plugged into the new card, not the old integrated plug.