PC SERVER 300 (TYPE 8640) OPO, 1P0, OPT, 1PT Motherboard Settings and Configuration

IBM CORPORATION

PC SERVER 300 (TYPE 8640) OPO, 1P0, OPT, 1PT

Processor
Pentium
Processor Speed
60MHz
Chip Set
Unidentified
Video Chip Set
None
Maximum Onboard Memory
192MB
Maximum Video Memory
None
Cache
256/512KB
BIOS
Unidentified
Dimensions
355mm x 304mm
I/O Options
32-bit PCI slots (3), floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Speaker
J11
IDE interface
J22
PS/2 mouse port
J15
Auxiliary power
P3
Parallel port
J18
Power LED
W9
Floppy drive interface
J19
IDE interface LED
W10
Serial port 1
J20
32-bit PCI slots
PC1 – PC3
Serial port 2
J21

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
Parity check enabled
J1
Closed

Parity check disabled
J1
Open
»
Cache type select write back
J2
Open

Cache type select write through
J2
Closed
»
Oscillator for U15
J6
Pins 1 & 2 closed

Clock synthesizer
J6
Pins 2 & 3 closed
»
BIOS normal operation
W2
Pins 2 & 3 closed

BIOS recovery mode
W2
Pins 1 & 2 closed
»
PS/2 mouse enabled
W6
Closed

PS/2 mouse disabled
W6
Open
»
Factory configured - do not alter
W20
Pins 2 & 3 closed

SIMM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
8MB
(2) 1M x 36
None
None
16MB
(2) 1M x 36
(2) 1M x 36
None
16MB
(2) 2M x 36
None
None
24MB
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
32MB
(2) 2M x 36
(2) 2M x 36
None
32MB
(2) 4M x 36
None
None
48MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
64MB
(2) 4M x 36
(2) 4M x 36
None
64MB
(2) 8M x 36
None
None
96MB
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
128MB
(2) 8M x 36
(2) 8M x 36
None
128MB
(2) 16M x 36
None
None
192MB
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36

CACHE CONFIGURATION
Note: The location of the cache is unidentified.

CACHE JUMPER CONFIGURATION
Size
J3
J4
J35
None
Pins 1 & 2 closed
Pins 1 & 2 closed
Open
256KB
Pins 2 & 3 closed
Pins 1 & 2 closed
Pins 1 & 2 closed
512KB
Pins 2 & 3 closed
Pins 2 & 3 closed
Pins 2 & 3 closed

CPU CLOCK SPEED SELECTION
Speed
J5
50MHz
Closed
66MHz
Open

CPU VOLTAGE SELECTION
Voltage
J40
J41
J42
5v
Closed
N/A
N/A
5.3v
Power module installed
Power module installed
Power module installed
Note: All pins on J40 must be closed.

DMA CHANNEL SELECTION
Channel
W14
W16
6
Pins 1 & 2 closed
Pins 1 & 2 closed
7
Pins 2 & 3 closed
Pins 2 & 3 closed

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PC SERVER 300 (TYPE 8640) OPO, 1P0, OPT, 1PT Motherboard Settings and Configuration

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Processor	Pentium
Processor Speed	60MHz
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	192MB
Maximum Video Memory	None
Cache	256/512KB
BIOS	Unidentified
Dimensions	355mm x 304mm
I/O Options	32-bit PCI slots (3), floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker	J11	IDE interface	J22
PS/2 mouse port	J15	Auxiliary power	P3
Parallel port	J18	Power LED	W9
Floppy drive interface	J19	IDE interface LED	W10
Serial port 1	J20	32-bit PCI slots	PC1 – PC3
Serial port 2	J21

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Parity check enabled	J1	Closed
	Parity check disabled	J1	Open
»	Cache type select write back	J2	Open
	Cache type select write through	J2	Closed
»	Oscillator for U15	J6	Pins 1 & 2 closed
	Clock synthesizer	J6	Pins 2 & 3 closed
»	BIOS normal operation	W2	Pins 2 & 3 closed
	BIOS recovery mode	W2	Pins 1 & 2 closed
»	PS/2 mouse enabled	W6	Closed
	PS/2 mouse disabled	W6	Open
»	Factory configured - do not alter	W20	Pins 2 & 3 closed

SIMM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
8MB	(2) 1M x 36	None	None
16MB	(2) 1M x 36	(2) 1M x 36	None
16MB	(2) 2M x 36	None	None
24MB	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
32MB	(2) 2M x 36	(2) 2M x 36	None
32MB	(2) 4M x 36	None	None
48MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36
64MB	(2) 4M x 36	(2) 4M x 36	None
64MB	(2) 8M x 36	None	None
96MB	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36
128MB	(2) 8M x 36	(2) 8M x 36	None
128MB	(2) 16M x 36	None	None
192MB	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36

CACHE JUMPER CONFIGURATION
Size	J3	J4	J35
None	Pins 1 & 2 closed	Pins 1 & 2 closed	Open
256KB	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
512KB	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

CPU CLOCK SPEED SELECTION
Speed	J5
50MHz	Closed
66MHz	Open

CPU VOLTAGE SELECTION
Voltage	J40	J41	J42
5v	Closed	N/A	N/A
5.3v	Power module installed	Power module installed	Power module installed
Note: All pins on J40 must be closed.

DMA CHANNEL SELECTION
Channel	W14	W16
6	Pins 1 & 2 closed	Pins 1 & 2 closed
7	Pins 2 & 3 closed	Pins 2 & 3 closed