One World Touch OP 1200, Service Manual, Page: 41 / 135

Service Manual version 1008
OP 1200/1500/1700 (PC920 Intel 945G)
4-33
4.1.2.8. Removing CPU & DDR
The two components you might need to remove from the motherboard are the CPU and DDR memory
module. Follow the steps below to remove the CPU (2) and DDR module (3) from the motherboard.
The two components you might need to remove from the motherboard are the CPU and DDR memory
module. Please note that the Celeron M CPU in OP SERIES (PC920) system is an onboard BGA type
and irremovable, therefore, the CPU in OP SERIES is not upgradeable unless the motherboard is
replaced. The following steps illustrate the way to remove the Pentium M CPU (2) from the PC920
motherboard and DDR from both motherboards.
1. Unplug the CPU fan cable from
FAN1 on the motherboard.
2. Remove the fan by loosening the four retaining screws.
3. Release the four screws to remove the heatsink.
4. Remove the heatsink on the CPU. Then remove the CPU by pulling the lever out a little and
raising it, then lifting out the existing CPU from the socket.
5. Cut the cable ties on the DDR sockets. There are two white eject levers at each end of the DDR
socket. Push them outwards until they separate from the two vertical posts.
6. Holding the DDR with the notch on the upper right corner, then remove the DDR from the DDR
socket at 90  angle.
(1)
(2)
(3)
(4)
(5)