Stop guessing. Start shorting. Good luck. Have a different Dell board like the 0Y2MRG or 0KWVT8? The pinout is usually identical, but always verify the ground plane with a multimeter before connecting.
There isn't one. Dell does not route a reset button to the front panel header on the MH61R. If you want a reset button, you must short two specific pins on the super I/O chip—which is not recommended for beginners. The "Dell Trap" Explained Why does your standard case power switch not work?
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. Dell Mih61r Mb Front Panel Pinout
If you are reading this, you have likely just experienced a specific flavor of PC building frustration.
On a standard Intel motherboard, the power switch pins are usually and Pin 8 (Ground) . On the Dell MH61R, Pin 8 is NC (No Connection) . Stop guessing
Let's tear down the schematic, identify the pins, and get your machine booting. On most standard motherboards (Asus, MSI, Gigabyte), the front panel header is a block of 9 pins (missing one for keying). Dell, however, uses a 10-pin or 12-pin header layout that redefines everything.
Welcome to the world of Dell proprietary pinouts. The MH61R does not follow the Intel standard. At all. Have a different Dell board like the 0Y2MRG or 0KWVT8
You plugged in the standard Intel front panel header connector. You pressed the power button. Nothing happened.