IBM CORPORATION

PC300 (TYPE 6588)

Device Type

Mainboard

Processor

Pentium II

Processor Speed

233/266/300MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

512MB (EDO supported)

Maximum Video Memory

Unidentified

Cache

256/512KB (located on Pentium II CPU)

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Ethernet 10BaseT connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial port, VGA feature connector, VGA port, riser slot, IR connector, USB connectors (2), line in, line out, wavetable connector, audio in – CD-ROM

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

5v auxiliary power

C1

Ethernet 10BaseT connector

CN2

Telejack connector

C2

USB connector 2

CN3

Audio in - CD-ROM

C3

USB connector 1

CN4

Wavetable connector

C4

Parallel port

CN5

5v power

C5

PS/2 mouse port

CN6

3.3v auxiliary power

C6

Line out

CN7

Power switch connector

C7

Line in

CN8

Power LED/IDE interface LED

C8

VGA feature connector

CN9

CPU fan power

C9

Floppy drive interface

CN10

Chassis fan power

C10

IDE interface 2

CN11

SCSI interface LED

C11

IDE interface 1

CN12

Wake on LAN connector

C12

IR connector

J3M1

Wake on modem connector

C13

Serial port

J4M1

Chassis security connector

C14

Riser slot

SL1

VGA port

CN1

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Flash BIOS normal operation

J1

Pins 5 & 6 closed

 

Flash BIOS recovery mode

J1

Pins 4 & 5 closed

 

Floppy drive normal operation

J2

Pins 5 & 6 closed

 

Floppy drive read only

J2

Pins 4 & 5 closed

»

Factory configured - do not alter

J4

Pins 2 & 3 closed

»

CMOS memory normal operation

J4

Pins 5 & 6 closed

 

CMOS memory clear

J4

Pins 4 & 5 closed

 

Password normal operation

J5

Pins 2 & 3 closed

 

Password clear

J5

Pins 1 & 2 closed

 

Setup access normal operation

J5

Pins 5 & 6 closed

 

Setup access disabled

J5

Pins 4 & 5 closed

DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 2M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

24MB

(1) 2M x 64

(1) 1M x 64

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 4M x 64

None

None

32MB

(1) 2M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

None

32MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

DIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

40MB

(1) 4M x 64

(1) 1M x 64

None

40MB

(1) 2M x 64

(1) 2M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 1M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

56MB

(1) 4M x 64

(1) 2M x 64

(1) 1M x 64

64MB

(1) 8M x 64

None

None

64MB

(1) 4M x 64

(1) 4M x 64

None

64MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

72MB

(1) 8M x 64

(1) 1M x 64

None

72MB

(1) 4M x 64

(1) 4M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 1M x 64

(1) 1M x 64

80MB

(1) 4M x 64

(1) 4M x 64

(1) 2M x 64

88MB

(1) 8M x 64

(1) 2M x 64

(1) 1M x 64

96MB

(1) 8M x 64

(1) 2M x 64

(1) 2M x 64

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

104MB

(1) 8M x 64

(1) 4M x 64

(1) 1M x 64

112MB

(1) 8M x 64

(1) 4M x 64

(1) 2M x 64

128MB

(1) 16M x 64

None

None

128MB

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

144MB

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

None

144MB

(1) 8M x 64

(1) 8M x 64

(1) 2M x 64

152MB

(1) 16M x 64

(1) 2M x 64

(1) 1M x 64

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

160MB

(1) 8M x 64

(1) 8M x 64

(1) 4M x 64

168MB

(1) 16M x 64

(1) 4M x 64

(1) 1M x 64

176MB

(1) 16M x 64

(1) 4M x 64

(1) 2M x 64

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

200MB

(1) 16M x 64

(1) 8M x 64

(1) 1M x 64

208MB

(1) 16M x 64

(1) 8M x 64

(1) 2M x 64

224MB

(1) 16M x 64

(1) 8M x 64

(1) 4M x 64

256MB

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 32M x 64

None

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium II CPU.

VIDEO MEMORY CONFIGURATION

Note: The size and location of the video memory is unidentified.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

J2

J3

233MHz

66MHz

3.5x

2 & 3

2 & 3, 5 & 6

266MHz

66MHz

4x

1 & 2

1 & 2, 4 & 5

300MHz

66MHz

4.5x

1 & 2

2 & 3, 4 & 5

Note: Pins designated should be in the closed position.