Specifications

Chapter 2 63

Parts Replacement Procedures

Voltage Regulator Modules (VRMs)

This section explains how to remove and replace the voltage regulator modules (VRMs).

WARNING Turn the workstation off and unplug the power cord before

removing or installing voltage regulator modules. Reference “Safely

Powering Down the B2000 Workstation” on page 12.

CAUTION To prevent damage to the VRMs, observe all of the ESD precautions as

described in the “Electrostatic Discharge (ESD) Precautions” on page 9.

VRMs are installed on the system board in pairs. The top VRM is a master and the bottom

VRM is the slave.

Figure 2-53. VRMs on the System Board

Removing VRMs

To replace defective VRMs follow the steps below:

1. Remove the left side panel. See “Opening the Left Side Panel” on page 16.

VRM Master

VRM Slave