I ordered the power to replace that of my Dell Studio 540 had dropped. I took a corsair ATX, reputable brand, the same rated power: 350 W After 4 days of use, it stopped working! I realized that the power of the 3.3 / 5V was only 90W to 160W The power supply against original .... So I re-sent the alim and waits for reimbursement from Purchase mania for almost a month!