4
Safety information for replacing CRUs
Do not open your computer or attempt any repairs before reading the “Important safety information” in the
Safety, Warranty, Environment, Recycling Information Guide
and
Important Product Information Guide
that was
included with your computer.
If you no longer have this copy of the
Safety, Warranty, Environment, Recycling Information Guide
and
Important
Product Information Guide
, you can obtain one online from the website at http://www.lenovo.com/UserManuals.
Pre-disassembly instructions
Before proceeding with the disassembly procedure, make sure that you do the following:
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.
CRUs for your computer include:
• keyboard
• mouse
• hard disk drive
• optical drive
• PCI express adapter
• memory module
This part contains instructions for replacing the following parts:
• Hard disk drive (Follow steps:
1
2
3
)
• Optical drive (Follow steps:
1
2
4
)
• PCI express adapter (Follow steps:
1
2
5
)
• Memory module (Follow steps:
1
2
6
)
