The standard Intel layout (Power SW on pins 6 & 8) does not apply.
This motherboard was predominantly used in the and similar variations within HP's "Mini" form factor lineup. Identifying this board is the first step in ensuring you are looking for the correct documentation. Hp 81c5 Motherboard Manual
Have a specific question about the HP 81C5 jumper layout or BIOS version? Leave a comment on the HP Support Forum citing this guide, and the community can help you decode the exact revision you own. The standard Intel layout (Power SW on pins
However, I can give you a that explains: Have a specific question about the HP 81C5
Primarily supports Intel Xeon W-2000 series and Core i7/i9 X-series processors. 8 DIMM slots
If you are repairing the board (for example, repairing a broken power switch header), the "HP 81C5 Motherboard Manual" or Service Guide becomes