YK840 0YK840 275Watt Power Supply for Dell OptiPlex 740 740 745 SFF L275E-01

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Product SKU: YK840


Item YK840 0YK840 275Watt Power Supply for Dell OptiPlex 740 740 745 SFF L275E-01 
Part Number YK840,0YK840,CN-0YK840
Model Number L275E-01
Max Power 275W
Application Dell OptiPlex 740 740 745 SFF Dell Dimension 9200c Dell Dimension 5100C, 5150C, 9200C, Dell XPS 200, XPS 210, Dell OptiPlex GX520, GX620, 740 and 745 Small Form Factor Systems
Detail Description Have Original Tested Working 0YK840 L275E-01 275Watt Power Supply In Good Condition.Fitting For Dell OptiPlex 740 740 745 SFF .
Connectors P1 - 24-pin ATX Motherboard Power P2 - 4-pin P4 motherboard power P3 - 4-pin SATA Standard Power Connector P5 - 4-pin small connector
Condition Refurbished, Tested, Working Good

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 Pc power supply Out with the old, in with the new. Make sure the replacement Pc power supply is set to the correct voltage, which for U.S. users means 115 (look for the little red switch on the back: If it's showing 230, slide it to 115). 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.


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