One World Touch OP 1200, Руководство по обслуживанию, Страница: 50 / 135

Service Manual version 1008
OP 1200/1500/1700 (PC920 Intel 945G)
5-42
5.2.1. Motherboard Assembly
5.2.1.1. Installing the CPU
The motherboard provides one LGA775 Socket, able to adapt a LGA775 Socket Intel

Core 2 Duo CPU.
Please note that the Core 2 Duo 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 CPU (2) from the PC850 motherboard and DDR
from both motherboards. The CPU in the OP SERIES (PC920) system must come with a heat sink and
cooling fan on to avoid overheating. To install or upgrade a new CPU for OP SERIES system, follow the
instructions below.
1. Pull the CPU lever up by pulling it outwards a little bit, then upwards. To insert the CPU (1) into the
socket (2), the notch on the corner of the CPU (the corner with golden or white dot) should point
toward the end of the socket lever. If the insertion of the CPU to the socket is not easy, check
whether the CPU pins correspond with the holes on the socket.
2. After inserting the CPU into the socket, pull the lever down to make sure the CPU is in place.
3. Put the heat sink set (3) on the CPU and lock four screws at each side.
4. Put the fan (4) on the heat sink and lock four screws at each side..
5. The CPU cooling fan comes with a power wire (5). Connect the power wire to the 3-pin power
connector FAN1 at the left side of the CPU retention on the motherboard. Tie the power wires
together with a nylon cable tie.
(1) (2)
(3)
(4)
(5)
(7)