Hi! I want to know if I can plug a Dell t5500 cpu riser in a Dell t7500. I have another question. Can I fit a Dell t7500 PSU in a t5500. I am having auto reboot and blue screen every 3 or 4 hours after I installed msi gforce gtx 970 gaming graphic card. I think the two 6-pin pcie cable ( rated 75W each) from the t5500 PSU does not have enough amperage to drive the 970 graphic card. The two 6-pin pcie cable (rated 150W each) from the t7500 PSU should be able to drive the 970 card.