Brand new L255P-01 Power Supply for Dell Optiplex 760 780 960 DT Power Supply 255W AC255AD-00.All power supplies are tested by our in house technicians and they are guaranteed to function properly.
Please make sure that you are ordering the correct power supply. All of the compatible models listed below come in different sizes and each size has a different power supply. Please check the part #'s, pictures and specifications carefully to make sure that you are ordering the correct power supply.
255W Power Supply Unit (PSU) for Dell Optiplex 780 760 790 960 980
Connectors
(1) Black Mini-24-Pin ATX Connector
(1) 12V 4-Pin Connector
(1) FDD Connector
(2) SATA Connectors
Compatible Dell Part Numbers:
PC8051, N249M , RM110, FR597, CY826, WU123, T164M, N249M, C112T, D390T, F283T, G238T, H255E-01
Model Numbers: F255E-01, D255P-00, L255P-01, AC255AD-00, H255E-01 Model: F255E-01
Reference Numbers: DPS-255BB A, PS-5261-3DF1-LF, VP09500052-00, HP-D2553A0 , v6v76
Compatible Models (not limited to)
Dell Optiplex 760 DT
Dell Optiplex 780 DT
Dell Optiplex 960 DT
Dell Optiplex 980 DT
1.Remove the dead pc power supply Once you've disconnected all the leads, look at the rear of the case and find the three or four screws holding the power supply in place. Remove them, then gently lift out the PS, making sure that the cabling doesn't get tangled on, say, a RAM module or expansion card and accidentally pull it loose.
2. Install the new dell L255P-01 Pc power supply Out with the old, in with the new. Make sure the replacement Pc power supply is set to the correct voltage. Once the old PS is out, put the new one in its place and screw it in. Now just reverse the steps you performed: connect the leads to their respective outlets, replace any extracted components, and consult your photos to make sure you've left no lead unplugged. (You'd be surprised how easy it is to forget, say, the DVD lead, especially when you've spent 10 minutes trying to wedge in that pesky front-panel lead.)
3. Fire it up Before you close up the case, make sure everything works. Connect the power cord to the Pc power supply, plug in your monitor and keyboard, and fire up the machine. Unless you've failed to connect the main leads to the motherboard, it should come right to life, just like before. Let it boot completely, then check to make sure there's power to the optical drive(s) and, if applicable, the front panel.