System Board
1-5
1.4.2
Jumper Settings
The following tables list the jumper settings and their corresponding
functions:
Table 1-1
Jumper Settings
Jumper
Setting
Function
JP1
1-2
2-3
BIOS Logo
Acer
OEM
JP2
1-2
2-3
LED Function
for IDE and FDD
for IDE only
JP3
1-2
2-3 *
Suspend/Reset Switch Function
Suspend
Reset
JP5
1-2
2-3
L2 Cache Mode
Intel or Cyrix M1/M2 “1+4” mode
Cyrix M1/M2 linear-burst mode
JP10
3-5, 4-6
1-3, 2-4
Power Supply Type
With standby power current > 1A
With standby power current < 1A
CN23
1-3, 2-4
3-5, 4-6
CPU Voltage Option
Single-voltage CPU (P54C)
Dual-voltage CPU (P55C)
CN36
1-2
3-4
5-6
7-8
9-10
Vcore Select
2.8V
2.9V
3.2V
3.31V
3.52V
S1
Switch 1
On
Off
Password Check
Bypass password
Check password