3-18 Disassembly and Reassembly
5. Install a replacement heat sink and fan as follows and in accordance with the procedures
contained in the heat sink kit.
! If the kit includes a thermal pad, center it on top of the processor.
! Align the heat sink and fan assembly with the processor and set it down on the
processor (see the previous figure for alignment).
! Attach the heat sink retention clip b y hooking the non-flange end of the clip over the
socket tab.
! Press the opposite end of the clip over the tab on the socket until it snaps in place.
6. Plug the cooling fan cable into its connector (CPU Fan) on the system board.
7. Replace the cover (see “Replacing the Cover”).
8. Connect any peripherals and power cords, and power up the system.
5 1/4-Inch Accessible Devices
The chassis is designed so devices within it are easy to install and remove. Note these guidelines
before installing or removing a 5 1/4-inch device.
! Special rails are used on 5 1/4-inch devices that allow them to be easily inserted and
removed.
! The rails are designed to be stored in an empty bay when they are not attached to a device.
The bay cover cannot be secured over an empty bay if the bay has no rails.
! Always place a bay cover over an empty bay.
! NECC recommends that you always keep the rails if you remove a device from the system.
! Use your stored rails on a new device if it doesn’t have the correct type of rail.
! When you convert the chassis to a desktop or a minitower, always move the stored rails for
the new position as well.
For procedures on removing or replacing rails, covers, or devices, see the following sections:
! “Removing or Replacing a Bay Cover”
! “Storing and Retrieving Unused Rail s”
! “Removing or Installing Device Rails ”
! “Removing a 5 1/4-Inch Accessible Device”
! “Installing a 5 1/4-Inch Accessible Device.”