page 2-3
Mainboard Setup
===============
P54C CPU JUMPER SETTING
=======================
When you look for jumper setting for H/W configuration. Please refer to page
2-4 the MP058 Mainboard placement chart.
CPU SPEED CPU Clock Selector CPU Internal Clock Selector
Yellow Jumper Cap Yellow Jumper Cap
JP18 JP17 JP31 JP32
P54C-75 Mhz CLOSE CLOSE (50 Mhz) 1-2 1-2 (x1.5)
P54C-90 Mhz CLOSE OPEN (60Mhz) 1-2 1-2 (x1.5)
P54C-100 Mhz CLOSE CLOSE (50 Mhz) 1-2 2-3 (x2 )
OPEN CLOSE (66.6Mhz) 1-2 1-2 (x1.5)
P54C-120 Mhz CLOSE OPEN (60Mhz) 1-2 2-3 (x2)
P54C-133 Mhz OPEN CLOSE (66.6Mhz) 1-2 2-3 (x2)
P54C-150 Mhz CLOSE OPEN (60Mhz) 2-3 2-3 (x2.5)
P54C-166 Mhz OPEN CLOSE (66.6Mhz) 2-3 2-3 (x2.5)
P54C-180 Mhz CLOSE OPEN (60Mhz) 2-3 1-2 (x3)
P54CST-200Mhz OPEN CLOSE (66.6Mhz) 2-3 1-2 (x3)
CYRIX 6x86 CPU JUMPER SETTING
=============================
CPU SPEED CPU Clock Selector CPU Internal Clock Selector
Yellow Jumper Cap Yellow Jumper Cap
JP18 JP17 JP31 JP32
6x86-P120(100 Mhz) CLOSE CLOSE (50Mhz) 1-2 2-3 (x2)
6x86-P150(120 Mhz) CLOSE OPEN (60Mhz) 1-2 2-3 (x2)
6x86-P166(133 Mhz) OPEN CLOSE (66 Mhz) 1-2 2-3 (x2)
NOTE: This motherboard only can support single voltage CPU.
CPU VOLTAGE SELECTOR Red Jumper Cap
===================================
JP36 JP37
CLOSE OPEN 3.38 Volts for Intel P54C, Cyrix 6x86 Standard CPU Type
page 2-5
SRAM Configuration
==================
SRAM Configuration is used to configure the external cache of the mainboard.
External cache can be configured by using 32K*8 and 64K*8 DIP type SRAM or
synchronous cache module.
There are 3 types external cache configuration.
A. DIP Type SRAM (Asynchronous Cache with pin legs)
JP20 SRAM TAG RAM
256K cache size 1-2 32K*8 8K*8 / 16K*8 / 32K*8
512K cache size 2-3 64K*8 16K*8 / 32K*8
Note: Please use mix (3/5 volt) or 3 volt DIP cache.
B. Cache Module With Built-in TAG RAM(Synchronous Cache)
Please remove DIP type SRAM on the mainboard because Asynchronous and
Synchronous can't be simultaneously installed.
C. Cache Module Without Built-in TAG RAM (Synchronous Cache)
JP20 TAG RAM
256K cache size 1-2 8K * 8 / 16K * 8 / 32K * 8 TAG RAM
on the U19 socket
512K cache size 2-3 16K*8 / 32K * 8 TAG RAM
