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Service Hints & Tips

Document ID: GSMH-3FHG8N

IBM PC730/PC750 - System board

Applicable to: World-Wide

PC 730/750 Series (Type 6877, 6887) - Pentium 100/133/150/166 MHz System Board:

PC 730/750 Series (Type 6877, 6887) - Pentium 100/133/150/166 MHz System Board Locations:

1

Power connector (5 V)

2 - J9

Modem ring

3 - J14

LAN wake-up

4 - J13

External ring wake-up

5 - J15

Password jumper (CMOS Clear)

6

Auxiliary power

7 - J18

On/Off switch

8 - J19

Tamper connector

9

Secondary IDE connector

10

Primary IDE connector

11

Diskette connector

12

Tamper (Reserved)

13

Battery

14

Voltage regulator connector

15

Power connector (3.3 V)

16

Switch set (SW1)

17

Processor socket

18

Cache memory module connector

19

Power LED connector

20

Hard Disk access LED connector

21

Speaker connector

22

DSP Audio connector

23

DIMM/SIMM connectors

24

VESA passthrough connector

25

Riser connector

26

Video port

27

ECP/EPP parallel port

28

Serial (B) port

29

Serial (A) port

30

Mouse port

31

Keyboard port

32

Infrared port


PC 730/750 Series (Type 6877, 6887) - Pentium 100/133/150/166 MHz Switch/Jumper Settings:
The following tables contain the switch and jumper setting information. (D) indicates the default setting.

Processor Speed Switch Settings (SW1 1-4):

Speed

SW1-1

SW1-2

SW1-3

SW1-4

75 MHz

Off

Off

On

On

90 MHz

Off

Off

On

Off

100 MHz

Off

Off

Off

On

120 MHz

On

Off

On

Off

133 MHz

On

Off

Off

On

150 MHz

On

On

On

Off

166 MHz

On

On

Off

On


Additional Switch Settings (SW1 5-6):

Description

SW1-5

SW1-6

Administrator
Password
Enabled

On (D)

N/A

Administrator
Password
Disabled

Off

N/A

Normal Diskette
Operation
Read-Only

N/A

Off (D)

Diskette
Operation

N/A

On


Jumper Settings:

Jumper

Setting

Description

J15

1-2 (D)
2-3

Password Enabled
Password Disabled



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Hardware Maintenance Information

Date Created

25-03-97

Last Updated

30-04-98

Revision Date

24-04-99

Brand

IBM PC

Product Family

PC 730, PC 750

Machine Type

6877, 6887

Model

all

TypeModel

Retain Tip (if applicable)

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