Dell Precision 330 Service Manual - Page 160

Overview, Removing the VRM

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www.dell.com | support.dell.com Overview The voltage regulator module (VRM) senses the microprocessor's voltage requirements and ensures that the correct voltage is maintained. Removing the VRM CAUTION: Before you perform this procedure, see "Precautionary Measures." NOTICE: Before disconnecting a peripheral from the system or removing a component from the system board, verify that the standby power indicator on the system board has turned off. To locate this indicator, see "System Board Components" or "Interior Service Label." 1 Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover. 2 Rotate the power supply away from the system board. 3 Remove the VRM securing clip: a Press down on the two raised points of the clip's top surface to release it from the VRM connector. b Lift the clip away from the VRM (see the following figure). 160 VR M

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VRM
www.dell.com | support.dell.com
Overview
The voltage regulator module (VRM) senses the microprocessor’s voltage
requirements and ensures that the correct voltage is maintained.
Removing the VRM
CAUTION:
Before you perform this procedure, see "
Precautionary
Measures
."
NOTICE:
Before disconnecting a peripheral from the system or removing a
component from the system board, verify that the standby power indicator on
the system board has turned off. To locate this indicator, see "
System Board
Components
" or "
Interior Service Label
."
1
Turn off the computer and peripherals, disconnect them from their
electrical outlets, wait at least 5 seconds, and then
remove the
computer cover
.
2
Rotate the power supply
away from the system board.
3
Remove the VRM securing clip:
a
Press down on the two raised points of the clip²s top surface to
release it from the VRM connector.
b
Lift the clip away from the VRM (see the following figure).