A: That is a proprietary HP power command header. Ignore it unless you need to use an original HP chassis with a special power button board. Conclusion The Pegatron IPMSB-H61 manual is essential for anyone repurposing this durable, budget-friendly board. While HP does not make it easy to find, you can download the Maintenance and Service Guide for the HP Compaq 8200 Elite or HP Pro 3500 – that document is your true manual.
Before messing with jumpers or BIOS, always unplug the PSU and press the power button to drain residual charge. This board has sensitive power management circuits. Have a specific issue with your Pegatron IPMSB-H61 not covered here? Check the HP support forums with your exact PC model number – there is over a decade of community knowledge waiting. pegatron ipmsb-h61 manual
| Pin | Signal | Pin | Signal | |-----|----------------|-----|-----------------| | 1 | HDD LED + | 2 | Power LED + | | 3 | HDD LED - | 4 | Power LED - | | 5 | Ground | 6 | Power Switch | | 7 | Ground | 8 | Power Switch | | 9 | Reset Switch | 10 | (Key - missing) | A: That is a proprietary HP power command header