System Boards3-7Connector FunctionCN43 Feature connectorCN44 HDD activity indication from Add-on card (seeCN35)CN45 Fan connector 1CN46 Wake-on-LAN connectorCN47 Wide SCSI connector channel BCN48 Wide SCSI connector channel ACN49 Serial ports 1 (above) and 2 (below)CN50 Backplane board connector (connects to CN10)JP1 CPU 1 fan connectorJP10 CPU 2 fan connectorJP12 CPU 3 fan connectorJP13 CPU 4 fan connectorJP14 MIOC chipset fan connectorJP18 PXB U64 fan connectorJP21 ReservedJP22 ReservedJP23 Reserved (Right door intrusion connector)3.1.3 Installing and Removing an Intel Pentium IIXeon CPUIntel’s Pentium II Xeon CPU is a Slot 2 processor that uses a 330-contact connector which is a bit longer that a Slot 1 processor. Otherthan the size, the major improvement of the Slot 2 processor is at theL2 cache. Pentium II Xeon processors access the L2 cache at fullclock speed, 400 MHz or 450 MHz, whereas a Slot 1 processoraccesses the L2 at only half the CPU’s clock speed. Thus, Slot 2processor significantly boost performance and speed. Here are someof the other features of the Pentium II Xeon processor:• 0.25 micron P6 microarchitecture core
