Sram Installation And Jumpers Setup; Cpu Installation And Jumpers Setup - Pentium GA - 586IP User Manual

GA-586IP
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3.5. SRAM INSTALLATION AND JUMPERS SETUP

The cache memory system consists of SRAM, the SRAM type is 3.3V 32Kx8-15 ns, 64Kx8-
15 ns or 128Kx8-15
The mainboard can be installed 256 KB or 512 KB cache memory when using 32Kx8 or
64Kx8 (128Kx8) type DATA SRAM separately. Please refer to the following table to install
cache memory system :
SIZE
256 KB 32 K x 8
512 KB 64 K x 8 or 128 K x 8
Because there are not standard IC's coding number of SRAM, refer to the following table to
identify the SRAM component:
32 K x 8
W24257AK-15
UM61256-15
71256-15

3.6. CPU INSTALLATION AND JUMPERS SETUP

The system's speed depends on the frequency of CLOCK GENERATOR. The user can
change the JUMPER (J19) selection to set up the system speed to 60 MHz or 66 MHz for 60
or 66 MHz PENTIUM
The mainboard can use 3.3V PENTIUM
with the frequency of CLOCK GEN. It will cause system hanging up if the CLOCK GEN.'S
frequency is higher than CPU's.
J19 CPU Type
1-2
PENTIUM
2-3
PENTIUM
M
The CPU is a sensitive electric component and it can be easily damaged by static
electricity, so users must keep it away from metal surface when the CPU is installed
onto mainboard.
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ns.
TYPE
64 K x 8
W24512AK-15
AS7C512-15
CPU.
or P54CT CPU, and the CPU speed must match
CLK. GEN. Speed
66.667 MHz
- 100
60 MHz
- 90
J15
1 - 2
2 - 3
128 K x 8
W241024AK-15
AS7C1024-15
CPU Speed
100 MHz
90 MHz