2 different prossers on same board

i have a motherboard that has 2 different prossers
holder’s:
#1 is an AMD holder
#2 is a socket PGA 370
i have never seen a motherboard like this, i dont know which prosser to use, how do you pick which prosser to use????
i need your help, i got no manual and feel lost,
motherboard is PC100EXCEL. ill be awaiting your return by e-mail.
skybird4me@yahoo.com