Lenovo ThinkStation P900 Hardware Maintenance Manual page 177

Notes:
• Ensure that you install the correct type of microprocessor option your computer supports. When two
microprocessors are installed, both must be identical.
• For E5-1600 v3 series microprocessors, the computer can support only one installed. If you want to install
two microprocessors into your computer, use the E5-2600 v3 series microprocessors.
• A second heat sink and fan assembly is also required. Ensure that you have this assembly available
before you start the installation.
• Your microprocessor, socket, and socket cover might look slightly different from the illustrations in this
topic.
To install the second microprocessor, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 111.
3. Remove the direct cooling air baffle. See "Removing and reinstalling the direct cooling air baffle" on
page 128.
4. Lay the computer on its side for easier access to the system board.
5. Locate the microprocessor socket 2 on the system board. See "Locating parts on the system board"
on page 34.
6. Open the small handle
outward to release it from the secured position. Then, open the other small handle
same instructions. Ensure that the small handles are in the fully open position.
Note: There are two marks on the microprocessor retainer. You must open the small handle marked
with first and then you can open the other small handle marked with
Figure 86. Opening the handles
2 by gently pressing down the small handle. Then pull the small handle slightly
1
.
.
Chapter 11 Installing or replacing hardware
by following the
169