Tyan Computer S1854 - Manual (Page 24)

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24
Chapter 2
Board Installation
4. Installing the CPU and Cooling Fan
Socket 370 type Celeron processors (300 through 533MHz) and Slot 1 type Pentium
II/III can be used on the Trinity 400. Please refer to page 15 for the correct CPU
jumper settings for your CPU. Remember:
• The CPU is a sensitive electronic component and it can easily be damaged
by static electricity. Do not touch the CPU pins with your fingers. You
should be able to insert the CPU into the socket with virtually zero force.
Do not press down hard on the CPU as you will bend or break pins.
Installing Socket 370 Type CPUs
Pin 1 on the CPU is denoted by a small dot on one of the corners and Pin 1 on
the ZIF socket is denoted by an angled corner.
Note: If two CPUs
are installed
simultaneously,
there is a tremen-
dous risk of
shorting out both
CPUs and the
motherboard. DO
NOT install 2CPUs
at the same time!
Figure 2-8
Push down lightly on the CPU, and lower the arm on the ZIF socket to secure
the CPU. (Figure 2-8) A squeaking noise is normal as the arm lowers. Never
force a CPU into a socket. Forcing a CPU to seat will bend the pins on the CPU
and possibly damage the motherboard. Check with your vendor or manufac-
turer for proper voltage selection.After the CPU is securely seated, install the
appropriate cooling device. Tyan strongly recommends a heatsink/fan combi-
nation. Consult with your case manufacturer for other cooling options.
•
!
important!