Review on 💡 Dell Optiplex 390 790 990 3010 9010 SFF Power Supply - POINWER H240AS-01 2TXYM 3WN11 709MT 240W, Compatible with CCCVC 3RK5T F79TD L240AS-00 H240ES-00 D240ES-00 by Ryan Mosqueda

I had to buy a total of 5 power supplies for our machines in the office. I have found that this particular power supply has worked well and has survived in other computers. I hope it's another 3 years before we have to upgrade our systems. Overall very happy with the purchase. For the installation it is recommended to remove the hard disk and the CDs. This will help you take out the old power supply and put in this one. You need this when you hit the power button and nothing works, or when it turns on and off within minutes or seconds.