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Thermal sensor header
Front USB 3.0 connector
SATA connectors (4)
Power fan header
Front panel connector
Serial (COM2) connector
Front USB connectors (2)
Mini PCI-E slot
Front audio connector
PCI express X 1 adapter slots (2)
PCI express X 16 adapter slots (2)
System fan header
Attention: Do not remove the computer cover or attempt any repair
before reading the “Important safety information” in the Safety and
Warranty Guide that was included with your computer or in the Hardware
Maintenance Manual (HMM) for the computer. To obtain copies of the
Safety and Warranty Guide or HMM, go to the Support Web site at
Before proceeding with the disassembly procedure, make sure that you do the
1. Turn off the power to the system and all peripherals.
2. Unplug all power and signal cables from the computer.
3. Place the system on a flat, stable surface.