IBM P 615 series User Manual

Voltage Regulator Modules
The following procedures describe the removal and replacement of the voltage regulator modules. Before
performing the following procedures, read the “Safety Notices” on page xi.
The system backplane for the Model 6C3 and Model 6E3 contains three voltage regulator modules: a 1.2V
VRM, a 2.5V VRM, and a 1.8V VRM. See the following figure for the location of each module.
1
2
3
4
J0A
V1
V3 V2 J3B
J1A
J2B
J2A
J0B J1B
J3A
1 System Backplane 3 2.5V Voltage Regulator Module
2 1.8V Voltage Regulator Module 4 1.2V Voltage Regulator Module
Removing Voltage Regulator Modules
To remove a voltage regulator module, do the following:
1. Shut down the system as described in “Stopping the System” on page 282.
2. Disconnect the power source from the system.
Note:
This system may be equipped with a second power supply. Before continuing with this
procedure, ensure that the power source to the system has been completely disconnected.
3. If you are removing the 1.8V or 2.5V module, disconnect the power cables from the primary power
supply and secondary power supply if present.
4. Place the system into the service position as described in “Placing the Model 6C3 into the Service
Position” on page 284 or “Placing the Model 6E3 into the Service and Operating Position” on page
286.
5. Remove the service access cover as described in “Removing the Model 6C3 Service Access Cover”
on page 288 or “Removing the Model 6E3 Service Access Cover” on page 289.
6. Before handling any card, board, or memory DIMM, be sure to use your electrostatic discharge strap
to minimize static-electric discharge. Refer to “Handling Static-Sensitive Devices” on page 280.
7. To access the voltage regulator module, do one of the following:
a. If you are removing the 1.8V or 2.5V module, remove the primary power supply and secondary
power supply or power supply filler as described in “Removing a Power Supply with the System
Power Off” on page 348.
b. If you are removing the 1.2V module, remove the fan tray assembly as described in “Removing
the Fan Tray Assembly” on page 321.
Chapter 9. Removal and Replacement Procedures 357

IBM P 615 series Specifications

General

Brand	IBM
Model	P 615 series
Category	Server
Language	English