| Pin Number | Signal | Description | Standard Intel Equivalent | | :--- | :--- | :--- | :--- | | 1 | HDD LED + | Hard Drive Activity (Anode) | Pin 1 | | 2 | HDD LED - | Hard Drive Activity (Cathode) | Pin 3 | | 3 | GND | Ground | Pin 2 or 4 | | 4 | PWR LED + | Power LED (Anode - Green) | Pin 2 (Usually) | | 5 | PWR LED - | Power LED (Cathode) | Pin 4 | | 6 | PWR_SW | | Pin 6 (Usually) | | 7 | GND | Ground for Power Button | Pin 8 (Usually) | | 8 | NC | Not Connected (Key pin on Intel) | Pin 5 (Missing on Intel) | | 9 | +5V (Standby) | 5V always on | N/A | | 10 | GND | Aux Ground | N/A |
On the Dell MH61R, the power switch circuit is on and Pin 7 (GND) .
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.
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.
Do not trust the color of the wires on a Dell OEM case. Dell changes wire colors between revisions. You must go by pin position, not wire color. The Actual MH61R Pinout (Verified) Here is the pinout looking at the motherboard header with the PCIe slots facing down (bottom edge of the board towards you).
You plugged in the standard Intel front panel header connector. You pressed the power button. Nothing happened.
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) .
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.
Dell Mih61r Mb Front Panel Pinout Now
| Pin Number | Signal | Description | Standard Intel Equivalent | | :--- | :--- | :--- | :--- | | 1 | HDD LED + | Hard Drive Activity (Anode) | Pin 1 | | 2 | HDD LED - | Hard Drive Activity (Cathode) | Pin 3 | | 3 | GND | Ground | Pin 2 or 4 | | 4 | PWR LED + | Power LED (Anode - Green) | Pin 2 (Usually) | | 5 | PWR LED - | Power LED (Cathode) | Pin 4 | | 6 | PWR_SW | | Pin 6 (Usually) | | 7 | GND | Ground for Power Button | Pin 8 (Usually) | | 8 | NC | Not Connected (Key pin on Intel) | Pin 5 (Missing on Intel) | | 9 | +5V (Standby) | 5V always on | N/A | | 10 | GND | Aux Ground | N/A |
On the Dell MH61R, the power switch circuit is on and Pin 7 (GND) .
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. Dell Mih61r Mb Front Panel Pinout
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.
Do not trust the color of the wires on a Dell OEM case. Dell changes wire colors between revisions. You must go by pin position, not wire color. The Actual MH61R Pinout (Verified) Here is the pinout looking at the motherboard header with the PCIe slots facing down (bottom edge of the board towards you). | Pin Number | Signal | Description |
You plugged in the standard Intel front panel header connector. You pressed the power button. Nothing happened.
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) . Dell, however, uses a 10-pin or 12-pin header
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.