PC Server 325 (Type 8639-Pxx, RBx) Processor / System - Board
Pentium® II (Klamath) - Processor-Card Type A - Jumper Settings
Pentium® II (Klamath) - Processor-Card Type B - Jumper Settings
On Server 8639-325 models PT0, PTW, PB0, RB0
J12 must be placed to pin 2-3.