Jumper Settings - Acer V55LA-2 User Manual

1.2.2

Jumper Settings

Table 1-1 lists the system board jumpers with their corresponding
settings and functions.
Table 1-1 System Board Jumper Settings
Jumper
BIOS Type
JP1
LED Function
JP2
Second-level Cache
JP3, JP4 1-2, 1-2
1-2, 2-3
2-3, 2-3
Regulator
JP7
SMM/Reset Switch
JP11
Software Shutdown
JP16
CPU Voltage
JP43 (for I/O)
JP44 (for core)
1-6
Setting
1-2 For models with Acer BIOS
2-3 For models with OEM BIOS
1-2 LED for IDE and FDD
2-3 LED for IDE only
256 KB
512 KB
1 MB
Closed For single-voltage CPUs (P54C, K5, M1)
Open For dual-voltage CPUs (P55C, K6, M2)
1-2 CN19 pins 19-20 support SMM switch
2-3 Reserved
1-2 UPS enabled
2-3 UPS disabled
1-2 3.5V
2-3 3.3V
1-2 3.2V
2-3 2.8V
Function
User's Guide