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PB680 CPU Upgrade Information

Caution

Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system themselves should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty.

CPU Support
This motherboard can accommodate any of the following CPUs:

Intel Pentium 75 MHz
Intel Pentium 90 MHz
Intel Pentium 100 MHz
Intel Pentium 120 MHz
Intel Pentium 133 MHz
Intel Pentium 150 MHz
Intel Pentium 166 MHz
Intel Pentium 200 MHz

Note
This motherboard does NOT support MMX.

Specifications

Zero Insertion Force (ZIF) socket
Uses the 321-pin Type 7 CPU socket
Supports Pentium Overdrive Processor
Not keyboard switchable
Disable cache to slow down the system

CPU Speed Jumper Settings

Clock Speed(J1F2C) CPU Multiplier(J1F2D) Clock Speed Multiplier CPU Speed
2-3, 5-6 1-2, 4-5 50MHz x 1.5 75MHz

2-3, 4-5 1-2, 4-5 60MHz x 1.5 90MHz

1-2, 5-6 1-2, 4-5 66MHz x 1.5 100MHz

2-3,4-5 2-3, 4-5 60MHz x 2.0 120MHz

1-2, 5-6 2-3, 4-5 66MHz x 2.0 133MHz

2-3, 4-5 2-3, 5-6 60MHz x 2.5 150MHz

1-2, 5-6 2-3, 5-6 66MHz x 2.5 166MHz

1-2, 5-6 1-2, 5-6 66MHz x 3.0 200MHz

.

Clock Speed(J1F2C)	CPU Multiplier(J1F2D)	Clock Speed	Multiplier	CPU Speed
2-3, 5-6	1-2, 4-5	50MHz	x 1.5	75MHz
2-3, 4-5	1-2, 4-5	60MHz	x 1.5	90MHz
1-2, 5-6	1-2, 4-5	66MHz	x 1.5	100MHz
2-3,4-5	2-3, 4-5	60MHz	x 2.0	120MHz
1-2, 5-6	2-3, 4-5	66MHz	x 2.0	133MHz
2-3, 4-5	2-3, 5-6	60MHz	x 2.5	150MHz
1-2, 5-6	2-3, 5-6	66MHz	x 2.5	166MHz
1-2, 5-6	1-2, 5-6	66MHz	x 3.0	200MHz