Chapter 7
Removing and Replacing Components
Voltage Regulator Modules (VRM)
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Voltage Regulator Modules (VRM)
The server contains 3 VRMs that are located on I/O baseboard. Each is labeled with one of the following voltages:
• 3.3 Volts
• 5.0 Volts
• 12.0 Volts
CAUTION VRMs must be inserted into the slot with the corresponding voltage. Ensure VRMs are located in the proper
slot by checking the voltage label on the I/O baseboard. See Figure 7-26, “VRM Board Remove and
Replace.”
WARNING Ensure that the system is powered down and all power sources have been disconnected from the server
prior to removing or replacing a VRM.
Voltages are present at various locations within the server whenever an AC power source is connected.
This voltage is present even when the main power switch is in the off position.
Failure to observe this warning could result in personal injury or damage to equipment.
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