Central Processing Unit (Cpu) - Asus P5-99VM User Manual

III. HARDWARE SETUP

3. Central Processing Unit (CPU)

The motherboard provides a 321-pin ZIF Socket 7 that is backwards compatible
with ZIF Socket 5 processors. The CPU that came with the motherboard should
have a fan attached to it to prevent overheating. If this is not the case then purchase
a fan before you turn on your system.
WARNING! Without a fan circulating air on the CPU, the CPU can overheat
and cause damage to both the CPU and the motherboard.
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 right angle. Insert the CPU with the correct orientation as
shown. Use the notched corner of the CPU with the white dot as your guide. The
white dot should point toward the end of the lever. Notice that there is a blank area
where one hole is missing from that corner of the square array of pin holes and a "1"
printed on the motherboard next to that corner. Because the CPU has a corner pin
for three of the four corners, the CPU will only fit in the one orientation as shown.
The picture is for reference only; you should have a CPU fan that will cover the face
of the CPU. With the added weight of the CPU fan, no force is required to insert the
CPU. Once completely inserted, hold down on the fan and close the socket's lever.
IMPORTANT: You must set jumpers for "CPU to BUS Frequency Ratio" and
jumpers for "BUS Frequency Selection" depending on the CPU that you install.
CAUTION! Be careful not to scrape the motherboard when mounting a clamp-
style processor fan or else damage may occur to the motherboard.
P5-99VM ZIF Socket 7
22 ASUS P5-99VM User's Manual
Lock
Lever
1
Blank