EFI E-45, Installation And Service Manual, Page: 69 / 126

69 Installation and Service Guide: Color Controller E-45
Replacing parts
Replacing parts on the motherboard
Before you remove and replace the DIMMs, CPU, and battery on the motherboard, shut down and open the E-45 (see
page 50 ).
DIMMs
When installing DIMMs, note the following:
•
Different capacity DIMMs look alike. Make sure that you know the capacity of each DIMM before you install it in a
socket.
• Install only approved DIMMs available from your service representative.
• DIMMs must be installed in matched pairs. A matched pair is comprised of two alternate sockets. DIMMs within a pair
must be identical (same capacity and same number of chips on each side). For example, in a two-DIMM configuration,
populate DIMM 1 and DIMM 2 with DIMMs of identical capacity, with the same number of chips on each side.
To replace a DIMM
1
Shut down, and then open the E-45 (see page 50 ).
To access the DIMMs, you must remove the left panel.
2
Remove the printer interface board from the motherboard (see page 57 ).
3
To release a DIMM, push outward on the levers on each side of the DIMM.
4
Pull the DIMM straight out of the socket.
5
To replace a DIMM, insert the DIMM straight into the socket and close the levers at each side to lock it into place.
Note:
The socket is keyed so that the DIMM fits only one way. (See the notches in the preceding figure.)
6
If you installed a new DIMM, make sure to reset the time and date in Setup (see Configure Help for more information).
7
Replace the printer interface board (see page 58 ).
8
Reassemble the E-45 and verify its functionality (see page 85 ).
CPU
The CPU is installed in a socket on the motherboard. Before you remove the CPU from its socket, remove the motherboard
from the chassis (see
page 59 ), disconnect the CPU fan cable from the motherboard, and then remove the cooling assembly
from the E-45 (see page 70 ). The CPU cooling assembly consists of a fan and a heatsink.
Note:
Do not remove the CPU fan from the heatsink.
Important:
Make sure that the entire length of the DIMM (ends and center) is fully seated in the socket and that
the levers close securely around the ends of the DIMM.