3-4
Owner's Handbook
6.
Change the appropriate jumper settings on the 486 CPU board. Refer to
section 3.3 for the jumper settings.
7.
Re-attach the heat sink to the board with the four screws and the clip.
8.
Change the appropriate jumper settings on the system board. Refer to
section 2.5 for the jumper settings.
9.
Re-install the CPU board to the system board.
10.
Reconnect the cables.
NOTE:
If you are upgrading to Pentium CPU, you have to
change the 486 CPU board with a Pentium CPU board.
Read the manual that comes with the Pentium CPU
board for more information.
3.2
Upgrading the Second-Level Cache
The 486 CPU board has a standard 256 KB of cache memory expandable to
1 MB. The cache memory is a high-speed buffer between the main memory
and the CPU. It stores frequently-used instructions and data, greatly reducing
the CPU memory access time and ultimately improves system performance.
NOTE:
Read the electrostatic discharge (ESD) precautions in
Chapter 1 before handling chips.
