User`s guide

MegaRUM II PCI Motherboard User’s Guide

Step 3 Install Additional Voltage Regulator

One Voltage Regulator Module (VRM) is shipped with

every MegaRUM II motherboard. You need another VRM

if you install two CPUs. You can order VRMs for Intel

Pentium II CPUs from:

Manufacturer Part Number AMI Part Number

VXI 073-20740-20 MDL-PII-V5A190

Step 4 Connect CPU Fans

JP1 and JP2 (shown below) are 3-pin bergs that connect

the fan on the CPU heat sink to the motherboard power.

JP1 is the CPU fan connector for the CPU in CPU Slot1.

JP2 is the CPU fan connector for the CPU in CPU Slot2.

All Pentium II CPUs are shipped with a heat sink and a

CPU fan.

JP1 and JP2 are keyed in such a way that the CPU fan

connector can only be attached in the correct manner.

The connector from the CPU fan usually has three leads

(red, yellow, and black leads).

JP19, JP18 System Fan JP19and JP18 are 3-pin bergs. The pinout is the

same for JP19 and JP18 as it is for JP1 and JP2. JP19 and

JP18 provide +12V power to the main chassis fan. The

chassis fan should provide a tachometer output on Pin 3

so it can be monitored by the onboard server management

hardware.