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1-6
User’s Guide
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
Setting
Function
BIOS Type
JP1
1-2
*
2-3
For models with Acer BIOS
For models with OEM BIOS
Password Check
JP2
1-2
2-3*
Check password
Bypass password
Boot Block Feature
1
JP3
1-2
2-3*
(For Intel 28F001 only)
Enable Flash ROM boot block
feature
Disable Flash ROM boot block
feature
BIOS ROM Type
JP5
1-2
2-3
3-4*
EPROM
Flash ROM (Intel 28F010, 28F001)
Flash ROM (SST 29EE010)
CPU Core/Host Bus
Frequency
JP4
1-4
2-5*
3-6
75/50 MHz
90/60, 120/60, 150/60 MHz
100/66, 133/66, 167/66 MHz
Second-level Cache
JP6, JP7
1-2*,1-2*
256 KB
All other setting combinations are
reserved.
*
Default setting
1
The boot block feature works only for Intel 28F001 Flash ROM and requires JP5 to
be set to pins 2-3.