PC SERVER 320 (TYPE 8640) Motherboard Settings and Configuration

IBM CORPORATION

PC SERVER 320 (TYPE 8640)

MODELS MXO, MXT, MYO, MYT, MYR

Processor
Pentium
Processor Speed
75/90MHz
Chip Set
Unidentified
Video Chip Set
None
Maximum Onboard Memory
256MB
Maximum Video Memory
Unidentified
Cache
256/512KB
BIOS
Unidentified
Dimensions
355mm x 304mm
I/O Options
External memory card, 32-bit PCI slots (2), floppy drive interface,IDE interface, SCSI connectors (3), parallel port, PS/2 mouse port, serial ports (2), VGA port, cache slot
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
SCSI interface LED
J2
Serial port 1
J24
IDE interface LED
J3
Reset switch
J25
Chassis fan power
J4
SCSI interface
J28
Speaker
J6
SCSI fast/wide internal interface
J35
Chassis fan power
J8
SCSI fast/wide external interface
J39
Chassis fan power
J9
VGA port
J40
Power LED
J10
PS/2 mouse port
J42
IDE interface
J13
32-bit PCI slots
PC1 & PC2
Parallel port
J19
Cache slot
SL1
Floppy drive interface
J20
External memory card
SL2
Serial port 2
J21

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
Factory configured - do not alter
J12
Open

Password write enabled
J15
Pins 2 & 3 closed

Password write disabled
J15
Pins 1 & 2 closed

C2 cover open
J16
Unidentified

C2 keylock
J17
Unidentified
»
On board SCSI enabled
J26
Pins 1 & 2 closed

On board SCSI disabled
J26
Pins 2 & 3 closed
»
On board video enabled
J27
Pins 1 & 2 closed

On board video disabled
J27
Pins 2 & 3 closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
8MB
(2) 1M x 36
None
None
None
16MB
(2) 1M x 36
(2) 1M x 36
None
None
16MB
(2) 2M x 36
None
None
None
24MB
(2) 1M x 36
(2) 2M x 36
None
None
24MB
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
None
24MB
(2) 2M x 36
(2) 1M x 36
None
None
32MB
(2) 2M x 36
(2) 2M x 36
None
None
32MB
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
32MB
(2) 2M x 36
(2) 1M x 36
(2) 1M x 36
None
32MB
(2) 4M x 36
None
None
None
40MB
(2) 1M x 36
(2) 4M x 36
None
None
40MB
(2) 1M x 36
(2) 2M x 36
(2) 2M x 36
None
40MB
(2) 2M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
40MB
(2) 4M x 36
(2) 1M x 36
None
None

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
48MB
(2) 2M x 36
(2) 4M x 36
None
None
48MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
None
48MB
(2) 4M x 36
(2) 2M x 36
None
None
48MB
(2) 4M x 36
(2) 1M x 36
(2) 1M x 36
None
56MB
(2) 1M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
56MB
(2) 4M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
64MB
(2) 4M x 36
(2) 4M x 36
None
None
64MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
64MB
(2) 4M x 36
(2) 2M x 36
(2) 2M x 36
None
64MB
(2) 8M x 36
None
None
None
72MB
(2) 1M x 36
(2) 8M x 36
None
None
72MB
(2) 1M x 36
(2) 4M x 36
(2) 4M x 36
None
72MB
(2) 8M x 36
(2) 1M x 36
None
None
80MB
(2) 2M x 36
(2) 8M x 36
None
None
80MB
(2) 2M x 36
(2) 4M x 36
(2) 4M x 36
None
80MB
(2) 8M x 36
(2) 2M x 36
None
None
80MB
(2) 8M x 36
(2) 1M x 36
(2) 1M x 36
None
88MB
(2) 8M x 36
(2) 1M x 36
(2) 1M x 36
(2) 1M x 36
96MB
(2) 4M x 36
(2) 8M x 36
None
None
96MB
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
None
96MB
(2) 8M x 36
(2) 4M x 36
None
None
96MB
(2) 8M x 36
(2) 2M x 36
(2) 2M x 36
None
104MB
(2) 1M x 36
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
112MB
(2) 2M x 36
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
112MB
(2) 8M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
128MB
(2) 8M x 36
(2) 8M x 36
None
None
128MB
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
136MB
(2) 1M x 36
(2) 8M x 36
(2) 8M x 36
None
144MB
(2) 2M x 36
(2) 8M x 36
(2) 8M x 36
None
160MB
(2) 4M x 36
(2) 8M x 36
(2) 8M x 36
None
160MB
(2) 8M x 36
(2) 4M x 36
(2) 4M x 36
(2) 4M x 36
192MB
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
None
200MB
(2) 1M x 36
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
208MB
(2) 2M x 36
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
224MB
(2) 4M x 36
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
256MB
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
(2) 8M x 36
Note: Memory is located on the external memory card.

CACHE CONFIGURATION
Size
SL1
256KB
256KB module installed
512KB
512KB module installed

CPU SPEED SELECTION
CPU speed
Clock speed
J43
75MHz
50MHz
Pins 2 & 3 closed
90MHz
60MHz
Pins 1 & 2 closed

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PC SERVER 320 (TYPE 8640) Motherboard Settings and Configuration

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Processor	Pentium
Processor Speed	75/90MHz
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	256MB
Maximum Video Memory	Unidentified
Cache	256/512KB
BIOS	Unidentified
Dimensions	355mm x 304mm
I/O Options	External memory card, 32-bit PCI slots (2), floppy drive interface,IDE interface, SCSI connectors (3), parallel port, PS/2 mouse port, serial ports (2), VGA port, cache slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
SCSI interface LED	J2	Serial port 1	J24
IDE interface LED	J3	Reset switch	J25
Chassis fan power	J4	SCSI interface	J28
Speaker	J6	SCSI fast/wide internal interface	J35
Chassis fan power	J8	SCSI fast/wide external interface	J39
Chassis fan power	J9	VGA port	J40
Power LED	J10	PS/2 mouse port	J42
IDE interface	J13	32-bit PCI slots	PC1 & PC2
Parallel port	J19	Cache slot	SL1
Floppy drive interface	J20	External memory card	SL2
Serial port 2	J21

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	J12	Open
	Password write enabled	J15	Pins 2 & 3 closed
	Password write disabled	J15	Pins 1 & 2 closed
	C2 cover open	J16	Unidentified
	C2 keylock	J17	Unidentified
»	On board SCSI enabled	J26	Pins 1 & 2 closed
	On board SCSI disabled	J26	Pins 2 & 3 closed
»	On board video enabled	J27	Pins 1 & 2 closed
	On board video disabled	J27	Pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
8MB	(2) 1M x 36	None	None	None
16MB	(2) 1M x 36	(2) 1M x 36	None	None
16MB	(2) 2M x 36	None	None	None
24MB	(2) 1M x 36	(2) 2M x 36	None	None
24MB	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36	None
24MB	(2) 2M x 36	(2) 1M x 36	None	None
32MB	(2) 2M x 36	(2) 2M x 36	None	None
32MB	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
32MB	(2) 2M x 36	(2) 1M x 36	(2) 1M x 36	None
32MB	(2) 4M x 36	None	None	None
40MB	(2) 1M x 36	(2) 4M x 36	None	None
40MB	(2) 1M x 36	(2) 2M x 36	(2) 2M x 36	None
40MB	(2) 2M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
40MB	(2) 4M x 36	(2) 1M x 36	None	None

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
48MB	(2) 2M x 36	(2) 4M x 36	None	None
48MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	None
48MB	(2) 4M x 36	(2) 2M x 36	None	None
48MB	(2) 4M x 36	(2) 1M x 36	(2) 1M x 36	None
56MB	(2) 1M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36
56MB	(2) 4M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
64MB	(2) 4M x 36	(2) 4M x 36	None	None
64MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36
64MB	(2) 4M x 36	(2) 2M x 36	(2) 2M x 36	None
64MB	(2) 8M x 36	None	None	None
72MB	(2) 1M x 36	(2) 8M x 36	None	None
72MB	(2) 1M x 36	(2) 4M x 36	(2) 4M x 36	None
72MB	(2) 8M x 36	(2) 1M x 36	None	None
80MB	(2) 2M x 36	(2) 8M x 36	None	None
80MB	(2) 2M x 36	(2) 4M x 36	(2) 4M x 36	None
80MB	(2) 8M x 36	(2) 2M x 36	None	None
80MB	(2) 8M x 36	(2) 1M x 36	(2) 1M x 36	None
88MB	(2) 8M x 36	(2) 1M x 36	(2) 1M x 36	(2) 1M x 36
96MB	(2) 4M x 36	(2) 8M x 36	None	None
96MB	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36	None
96MB	(2) 8M x 36	(2) 4M x 36	None	None
96MB	(2) 8M x 36	(2) 2M x 36	(2) 2M x 36	None
104MB	(2) 1M x 36	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36
112MB	(2) 2M x 36	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36
112MB	(2) 8M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36
128MB	(2) 8M x 36	(2) 8M x 36	None	None
128MB	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36
136MB	(2) 1M x 36	(2) 8M x 36	(2) 8M x 36	None
144MB	(2) 2M x 36	(2) 8M x 36	(2) 8M x 36	None
160MB	(2) 4M x 36	(2) 8M x 36	(2) 8M x 36	None
160MB	(2) 8M x 36	(2) 4M x 36	(2) 4M x 36	(2) 4M x 36
192MB	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36	None
200MB	(2) 1M x 36	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36
208MB	(2) 2M x 36	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36
224MB	(2) 4M x 36	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36
256MB	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36	(2) 8M x 36
Note: Memory is located on the external memory card.

CACHE CONFIGURATION
Size	SL1
256KB	256KB module installed
512KB	512KB module installed

CPU SPEED SELECTION
CPU speed	Clock speed	J43
75MHz	50MHz	Pins 2 & 3 closed
90MHz	60MHz	Pins 1 & 2 closed