DFI G486VPA User Manual page 42

PCI/ISA System Board
Intel Write-back 486 CPU
1 2 3
JP14
1
Intel Write-back 486
Note:
Set Jumper JP33 pins 1 and 2 to On to support the
write through mode for the Intel Write-back 486 CPU.
Make sure Jumpers JP18, JP19 and JP21 are set cor-
rectly. To get the external CPU clock speed of the Intel
Write-back 486 CPU, divide its internal clock speed by
2. Please refer to page 2-42.
Jumpers JP31, JP32 and JP41 are used to select the
CPU voltage. Make sure they are set correctly. Please
refer to pages 2-42 and 2-43.
2-32 u Installation Overview
JRN1
JP34
JP36
CPU
1 2 3
JP26
1
JP42
JRN2
JRN3
1
JP35
1 2 3