Chapter 2: installation 2-7 chassis intrusion, Keyboard wake-up, Overheat led – Hypertherm SuperMicro 370SBA 533Mhz User Manual

Page 37: Bus speed

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Chapter 2: Installation

2-7

Chassis Intrusion

The Chassis Intrusion Detector is

located on JL1. See the board lay-

outs in Chapter 1 and the PC Health

Monitor section on page 1-15 for

more information. See Table 2-15 for

pin definitions.

Pin

N u m b e r

1
2

Definition

Intrusion Input

Ground

Table 2-15

Chassis Intrusion

Detector Settings on

JL1

Open = Default, Close = Intrusion

Keyboard Wake-Up

The Keyboard Wake-Up jumper is lo-

cated on JPWAKE. To enable Key-

board Wake-Up, set the JPWAKE

j u m p e r t o 2 - 3 a n d

enable the Keyboard Wake-Up func-

tion in the system BIOS (see page 5-

18 for more details). Refer to Table 2-

16 for pin definitions.

Overheat LED

The Overheat LED connector is lo-

cated on pins 1 and 2 of JOH. Re-

fer to Table 2-17 for pin definitions.

Bus Speed

The Bus Speed jumper is located on

JP11. Note: Bus speed select

(JP11) is not available on the

370SLA and 370SLM, which use

the 440LX chipset. Refer to Table

2-18 for instructions on setting the

bus speed using jumper JP11.

JP11 jumper setting 1-2 is the

default setting.

(Note: Current

Celeron processors only support a

66 MHz bus speed. Future Celeron

processors may support a 100 MHz

bus speed.)

Table 2-16

Keyboard Wake-Up Pin

Definitions for JPWAKE

Jumper

Position

1-2
2-3

Definition

Disabled

Wake-Up Enabled

Position

1 - 2

Position

2 - 3

Disabled

Wake-Up Enabled

Table 2-18

Bus Speed Pin

Definitions for JP11

Jumper

Position

1-2
2-3

O F F

Definition

Auto Select

66 MHz

100 MHz

Position

1-2

Position

2-3

Auto Select

66 MHz

Position

O F F

100 MHz

Pin

N u m b e r

1
2

Definition

1 2 V

OH Active

Table 2-17

Overheat LED Pin

Definition for JOH

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