You have a Dell OptiPlex 3010, 7010, or 390. The motherboard is the (often labeled CN-0Y8H8Y or similar). You decided to move this motherboard into a standard ATX case to save money, or perhaps you are trying to diagnose a power button failure.
You plugged in the standard Intel front panel header connector. You pressed the power button. Nothing happened. Dell Mih61r Mb Front Panel Pinout
Press F1 to continue, or flash a modified BIOS (risky) or simply short the two sensor pins together (Pin 8 and Pin 9 in some revisions—research your specific board first). Final Verdict The Dell MH61R is a perfectly capable LGA1155 board (supports Ivy Bridge i5/i7), but it was designed to be e-waste, not upgraded. By understanding the pinout—specifically that the power switch uses Pins 6 & 7 instead of 6 & 8—you can resurrect this board in any case. You have a Dell OptiPlex 3010, 7010, or 390
You have a Dell OptiPlex 3010, 7010, or 390. The motherboard is the (often labeled CN-0Y8H8Y or similar). You decided to move this motherboard into a standard ATX case to save money, or perhaps you are trying to diagnose a power button failure.
You plugged in the standard Intel front panel header connector. You pressed the power button. Nothing happened.
Press F1 to continue, or flash a modified BIOS (risky) or simply short the two sensor pins together (Pin 8 and Pin 9 in some revisions—research your specific board first). Final Verdict The Dell MH61R is a perfectly capable LGA1155 board (supports Ivy Bridge i5/i7), but it was designed to be e-waste, not upgraded. By understanding the pinout—specifically that the power switch uses Pins 6 & 7 instead of 6 & 8—you can resurrect this board in any case.