Processor Configuration (J9C1-C, D); Jumper Settings; Jumper Settings For Processor And Bus Frequencies - Intel AN430TX - Motherboard - ATX Technical Product Specification

AN430TX Motherboard Technical Product Specification
Table 29.

Jumper Settings

Function
Processor Voltage
Password
CMOS (NVRAM and ESCD) Clear
BIOS Setup Access
Reserved
Host Bus Frequency*
Processor Frequency
BIOS recovery
* These jumpers also set the PCI and ISA bus frequencies

1.13.1 Processor Configuration (J9C1-C, D)

The motherboard must be configured for the frequency of the installed processor. Table 30 shows
the jumper settings for each frequency and the corresponding host bus, PCI bus, and ISA bus
frequencies.
Table 30.

Jumper Settings for Processor and Bus Frequencies

Processor Jumpers
Freq. (MHz) J9C1-C
200 5-6
166 5-6
150 4-5
133 5-6
120 4-5
100 5-6
90 4-5
NOTE
There are no separate or additional jumpering requirements for Pentium processors with MMX
technology.
42
Jumper
J6M1
J9C1-A
J9C1-A
J9C1-B
J9C1-B
J9C1-C
J9C1-D
J8A1
Jumpers Host Bus
J9C1-D Freq. (MHz)
1-2 and 5-6 66
2-3 and 5-6 66
2-3 and 5-6 60
2-3 and 4-5 66
2-3 and 4-5 60
1-2 and 4-5 66
1-2 and 4-5 60
Configuration
1-2 Standard voltage
2-3 VRE voltage (Default)
1-2 Password enabled (Default)
2-3 Password clear/disabled
4-5 Keep (Default)
5-6 Clear
1-2 Access enabled (Default)
2-3 Access denied
4-5 (Reserved)
5-6 (Reserved)
See Table 30
See Table 30
1-2 Normal (Default)
2-3 Recovery
PCI Bus ISA Bus
Freq. (MHz) Freq. (MHz)
33 8.33
33 8.33
30 7.5
33 8.33
30 7.5
33 8.33
30 7.5
Bus/Processor
Freq. Ratio
3
2.5
2.5
2
2
1.5
1.5