If you are looking for the manual to resolve an issue, consult these common points:
If you plug a 3-pin fan into the CPU_FAN header, the manual suggests you will lose speed control, and the BIOS may throw a "CPU Fan Error" at boot. The " new " manual update for Ver 12 clarifies that SYS_FAN1 now supports fan curves via the BIOS version 8.15 or later. hp ms7860 ver 12 motherboard manual new