PB770 CPU Upgrade Information

Caution There are NO end user upgradeable parts in this system except the Flash BIOS. Anyone other than authorized service personnel opening the case will void the warranty.

Note

This motherboard can accommodate the following CPUs.

Intel Pentium 75 MHz

Intel Pentium 133 MHz

Intel Pentium 90 MHz

Intel Pentium 150 MHz

Intel Pentium 100 MHz

Intel Pentium 166 MHz

Intel Pentium 120 MHz

Intel Pentium 200 MHz

Uses the 321-pin Type 7 Zero Insertion Force (ZIF) CPU Socket.

Disable cache to slow down the system.

CPU Speed Jumper Settings

Function

Jumpers

Configuration

CPU Clock JP8 Off JP7 Off 55

Off On 60

On Off 66.6

On On 50

CPU Clock Ratio JP5 1-2 JP4 1-2 x1.5

2-3 1-2 x2.0

2-3 2-3 x2.5

1-2 2-3 x3.0

Flash JP10 Open Normal

Close Record

Password Clear JP12 Open Save

Close Clear

I2C JP2 1-2 JP1 1-2 IMPACTV

2-3 2-3 AMC

Processor Voltage JP6 1-2 VR

2-3 VRE

CPU Clock	JP8 Off	JP7 Off	55
	Off	On	60
	On	Off	66.6
	On	On	50


CPU Clock Ratio	JP5 1-2	JP4 1-2	x1.5
	2-3	1-2	x2.0
	2-3	2-3	x2.5
	1-2	2-3	x3.0

Flash	JP10	Open	Normal
		Close	Record

Password Clear	JP12	Open	Save
		Close	Clear

I2C	JP2 1-2	JP1 1-2	IMPACTV
	2-3	2-3	AMC

Processor Voltage	JP6	1-2	VR
		2-3	VRE