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Technical Articles

Acer Acros

Date Created:

03/22/2001

Article Number:

DP-10452

CPU Speeds and Jumper Settings for CPU Speeds

CPU Speeds

Intel Pentium 75

Intel Pentium 90

Intel Pentium 100

Intel Pentium 120

Intel Pentium 133*

CPU Speed

JP11

JP13

CN13

75 MHz

1-2

1-2

1-4,2-5

90 MHz

2-3

1-2

1-4,3-6

100 MHz

2-3

1-2

2-5

120 MHz

2-3

2-3

1-4,3-6

133 MHz

2-3

2-3

2-5*

*For 133MHz operation, the V2.0R01-N9 BIOS is required.

CPU Installation Instructions:

The system board comes with a zero-insertion force (ZIF) CPU socket for easy installation.

Follow these steps to install a CPU upgrade:

  • Pull up the socket lever.
  • Insert the CPU, making sure that pin 1 (indicated by a notched corner) of the CPU connects to hole 1 of the socket.
  • Pull down the socket lever to lock the CPU into the socket.
V30 CPU Installation

Pentium Bus Speed and CPU Speed Relationships

BUS Speed

Multiplier

CPU Speed

60

1.0(1/1)

60

66

1.0(1/1)

66

50

1.5(3/2)

75

60

1.5(3/2)

90

66

1.5(3/2)

100

60

2.0(2/1)

120

66

2.0(2/1)

133

 

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