Lenovo ThinkCentre A58 Manual page 48

You can find the replacement instructions for the following CRUs in the
ThinkCentre User Guide.
List of machine types: 7515, 7523, 7569
and 7611.
Self-service CRUs
Hard disk drive
Heat sink and fan
assembly
Keyboard
Memory module
Mouse
PCI (Peripheral
Component
Interconnect) card
34
Safety and Warranty Guide
ThinkCentre User Guide
Optional-service
CRUs
Diskette drive or
card reader (varies
by model type)
Microprocessor
Optical drive
Power supply
assembly
System fan
assemblies (front
and rear)
List of machine types: 7522, 7560, 7610,
and 7705.
Self-service CRUs
Battery
Hard disk drive
Heat sink and fan
assembly
Keyboard
Memory module
Microprocessor
Mouse
Optical drive
PCI card
Optional-service
CRUs
Power supply
assembly