CUSL-L User’s Manual
15
3. HARDWARE SETUP
3.5 Central Processing Unit (CPU)
The motherboard provides a ZIF Socket 370. The CPU that came with the mother-
board should have a fan attached to prevent overheating. If this is not the case, then
purchase a fan before turning on your system.
WARNING!
Be sure that there is sufficient air circulation across the processor’s
heatsink by regularly checking that your CPU fan is working. Without sufficient
circulation, the processor could overheat and damage both the processor and the
motherboard. You may install an auxiliary fan, if necessary.
To install a CPU, first turn off your system and remove its cover. Locate the ZIF
socket and open it by first pulling the lever sideways away from the socket then
upwards to a 90-degree angle. Insert the CPU with the correct orientation as shown.
The notched corner should point towards the end of the lever. Because the CPU has
a corner pin for two of the four corners, the CPU will only fit in the orientation as
shown. You should have a CPU fan that covers the face of the CPU. With the added
weight of the CPU fan, no force is required to insert the CPU. Once completely
inserted, close the socket’s lever while holding down the CPU. After the CPU is in
place, install an Intel recommended fan heatsink. Locate the CPU fan connector
(see 3.1 Motherboard Layout or 3.7 External Connectors) and connect the CPU
fan cable to it.
NOTE: Socket 370 processors provide internal thermal sensing so that a socket
mounted thermal resistor is not needed.
CAUTION!
Be careful not to scrape the motherboard when mounting a clamp-
style processor fan or else damage may occur to the motherboard.
CUSL-L
CUSL-L Socket 370
Gold Arrow
Pentium III
CPU
3. H/W SETUP
