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Service Hints & Tips

Document ID: GSMH-3FGJD9

IBM PC330/PC350 - (Type 65x6) Pentium 75/90/100 MHz system board

Applicable to: World-Wide

PC 330/350 Series (Type 65X6) - Pentium 75/90/100 MHz System Board:

This system board is for models 3XX, 4XX, 5XX.

See ¿PC 330/350 Series (Type 65X6) - Pentium 133/166 MHz System Board— for 6XX, 7XX, 8XX, and 9XX models.

PC 330/350 Series (Type 65X6) - Pentium 75/90/100 MHz System Board Locations:

1

Video display connector

2

Parallel port connector

3

Serial port connector

4 - J5J1

BIOS Flash jumper

5

Serial port connector

6

Mouse port connector

7

Keyboard connector

8

PCI/ISA Riser connector

9

Primary (outer) IDE connectors

9

Secondary (inner) IDE connectors

10

Power connector

11 - J9D1

Diskette drive connector

12 - J9C1

Processor VRE Enable

13

Memory module connectors

14

CPU 3.3V voltage regulator

15

RTC Battery

16

512 KB Cache memory connectors

17

Processor connector

18 - J2A2

Front panel I/O connector

19

Cache Tag memory connector

20 - J1D1

Front panel I/O connector

21 - SW1

Configuration switch block
- L2 Cache
- CMOS settings
- Power-on password
- Processor type

22

VESA connector

23

2MB Video memory connectors


See ¿PC 330/350 Series (Type 65X6) - Pentium 75/90/100 MHz Jumper Settings— for jumper and switch settings.

PC 330/350 Series (Type 65X6) - Pentium 75/90/100 MHz Jumper Settings:
The following tables contain the jumper and switch setting information. (D) indicates the default setting.

L2 Cache Size - SW1 Switch 1, 2:

L2 Cache Size

Switch1

Switch2

0 KB

On

N/A

256 KB

Off

Off

512 KB

Off

On


CMOS Setup Utility - SW1 Switch 3, 4, 5:

Description

Switch3

Switch4

Switch5

Power-on Password Enabled

Off (D)

Off

Off

Power-on Password Reset

On (D)

Off

Off

Normal CMOS Settings

Off

Off (D)

Off

Reset CMOS Settings

Off

On

Off


Processor Type - SW1 Switch 6, 7, 8:

Processor

Switch6

Switch7

Switch8

50/75 MHz

Off

Off

Off

60/90 MHz

Off

On

Off

66/100 MHz

Off

Off

On

Reserved

Off

N/A

N/A


BIOS Flash Reset - J5J1:

Jumper

Position

Description

J5J1

1-3

Normal (D)

J5J1

1-2

Reset


ISA Bus Clock Speed Jumper - J5J1:

CPU External
Clock Speed

ISA 1/6 Clock Speed
Jumper 5-7 Not Installed

ISA 1/8 Clock Speed
Jumper 5-7 Installed

50/75 MHz

8.33 MHz (D)

6.25 MHz

60/90 MHz

10 MHz

7.5 MHz (D)

66/100 MHz

11 MHz

8.25 MHz


Note:
J5J1 pins 4, 6, and 8 are reserved and should not be jumpered.


Processor VRE Enable - J9C1:

Jumper

Description

J9C1 1-3 (D)

Standard Voltage Processor

J9C1 5-7

VRE Rated Processor



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Hardware Maintenance Information

Date Created

24-03-97

Last Updated

30-04-98

Revision Date

23-04-99

Brand

IBM PC

Product Family

PC 330, PC 350

Machine Type

6576, 6586

Model

Various

TypeModel

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