Chapter 5. Installing options 45Removing the system board coverYou must remove the system board cover to install memory DIMMs or PCIadapters.Attention: Proper cooling is necessary to avoid damage to your computer. Do notoperate 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 thesystem board with a cable. Be careful to not damage the cable when removingthe 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 expansionslots.
