IBM 6643, Руководство пользователя

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Chapter 5. Installing options
45
Removing the system board cover
You must remove the system board cover to install memory DIMMs or PCI
adapters.
Attention: Proper cooling is necessary to avoid damage to your computer. Do not
operate your computer without all covers in place.
To remove the system board cover, do the following:
1. Remove the rear cover. See “Removing the rear cover” on page 42.
2. Remove the hard disk drive. See “Removing the hard disk drive” on page 44.
3. Remove the four thumbscrews holding the system board cover.
Attention:
A fan is mounted inside the system board cover and is connected to the
system board with a cable. Be careful to not damage the cable when removing
the cover.
4. Carefully lift the system board cover upward approximately .64 cm (.25 in.)
and position it so that you can access the memory DIMMs and PCI expansion
slots.