|If you do a seatch/trawl vi google/yahoo etc. usingthe string/term:|
asus p4g533-la manual
You will get quite a few hits... Possiby you've done this lready?
If not suggest you do just that.
It would seem this board in used in some HP/Compaq systems; and some Dell Optiplex systems... And some of this hits I browsed do include pointers to possible sources for manual...
What make is the system you have that uses this board?
What exactly does this fan do?