Lenovo B540 User Manual
34
User Guide
SATA IDE connectors (3)
Front panel connector
Serial (com2) connector
Front USB connectors (2)
Front audio connector
PCI Express X 1 adapter connectors (3)
PCI Express X 16 adapter connector
System fan connector
12V power connector
Front panel connector
Serial (com2) connector
Front USB connectors (2)
Front audio connector
PCI Express X 1 adapter connectors (3)
PCI Express X 16 adapter connector
System fan connector
12V power connector
Replacing hardware
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
http://support.lenovo.com
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
http://support.lenovo.com
Note: Use only parts provided by Lenovo.
Removing the computer cover
Attention: Turn off the computer and wait three to five minutes to let it
cool down before removing the cover.
To remove the computer cover:
1. Remove any media (disks, CDs, or memory cards) from the drives, shut down
the operating system, and turn off the computer and all attached devices.
2. Unplug all power cords from electrical outlets.
3. Disconnect all cables attached to the computer. This includes power cords,
3. Disconnect all cables attached to the computer. This includes power cords,
input/output (I/O) cables, and any other cables that are connected to the
computer. Refer to “Locating connectors on the rear of the computer”.
computer. Refer to “Locating connectors on the rear of the computer”.
4. Remove the two screws that secure the computer cover at the rear of the
chassis.