IBM CORPORATION

APTIVA 2139 SL-A

Device Type	Mainboard
Processor	Pentium II
Processor Speed	350/400/450MHz
Chip Set	Unidentified
Video Chip Set	ATI
Maximum Onboard Memory	384MB (EDO & SDRAM supported)
Maximum Video Memory	4MB
Cache	512KB (located on Pentium II CPU)
BIOS	Unidentified
Dimensions	305mm x 244mm
I/O Options	32-bit PCI slots (3), floppy drive interface, game/MIDI port, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, USB connectors (2), ATX power connector, line in, line out, microphone in, audio in – CD-ROM

CONNECTIONS
Purpose	Location	Purpose	Location
ATX power connector	ATX	AMC connector	CN7
USB connector 1	CN2	Modem connector	CN8
USB connector 2	CN2A	Audio in – CD-ROM	CN9
PS/2 mouse port	CN3	Wake on modem connector	CN10
Parallel port	CN4	Floppy drive interface	CN11
Serial port 1	CN4B	IDE interface 1	CN12
VGA port	CN4C	IDE interface 2	CN13
Game/MIDI port	CN5	CS4610 connector	CN15
Microphone in	CN5A	CPU fan power	FN1
Line in	CN5B	CPU fan power	FN2
Line out	CN5C	Power LED & keylock	JP4
IDE interface LED	CN6	32-bit PCI slots	PC1 – PC3
Note: The location of CN10 is unidentified.

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Audio resource write protected	J1	Pins 1 & 2 closed
	Audio resource programmable	J1	Pins 2 & 3 closed
	VGA IRQ disabled	JP2	Pins 1 & 2 closed
	VGA IRQ enabled	JP2	Pins 2 & 3 closed
»	Factory configured - do not alter	JP3	Unidentified
»	Factory configured - do not alter	JPX2	Unidentified
	Password enabled	S1/2	Off
	Password disabled	S1/2	On
»	Factory configured - do not alter	S1/3	Unidentified
»	Factory configured - do not alter	S1/4	Unidentified
Note: The location of J1 is unidentified.

DIMM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
16MB	(1) 2M x 64	None	None
32MB	(1) 4M x 64	None	None
32MB	(1) 2M x 64	(1) 2M x 64	None
48MB	(1) 4M x 64	(1) 2M x 64	None

DIMM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2
48MB	(1) 2M x 64	(1) 2M x 64	(1) 2M x 64
64MB	(1) 8M x 64	None	None
64MB	(1) 4M x 64	(1) 2M x 64	(1) 2M x 64
64MB	(1) 4M x 64	(1) 4M x 64	None
80MB	(1) 8M x 64	(1) 2M x 64	None
80MB	(1) 4M x 64	(1) 4M x 64	(1) 2M x 64
96MB	(1) 8M x 64	(1) 2M x 64	(1) 2M x 64
96MB	(1) 8M x 64	(1) 4M x 64	None
96MB	(1) 4M x 64	(1) 4M x 64	(1) 4M 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) 2M x 64	None
144MB	(1) 8M x 64	(1) 8M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 2M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 4M x 64	None
160MB	(1) 8M x 64	(1) 8M x 64	(1) 4M 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) 16M x 64	(1) 8M x 64	None
192MB	(1) 8M x 64	(1) 8M x 64	(1) 8M 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
Note: Board accepts SDRAM memory.

CACHE CONFIGURATION

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

VIDEO MEMORY CONFIGURATION

Note: 4MB video memory is factory installed and is not configurable. The location is unidentified.

CPU SPEED SELECTION
CPU speed	Clock speed	Multiplier	S1/1	S1/5	SW1/6	S1/7	S1/8
350MHz	100MHz	3.5x	Off	On	On	Off	On
400MHz	100MHz	4x	Off	Off	On	On	On
450MHz	100MHz	4.5x	Off	Off	On	Off	On

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APTIVA 2139 SL-A, motherboard, processor, socket, pentium, pentium pro, celeron, powerpc, alpha, 8088, 8086, 286, 386, 486, configuration, RAM, DRAM, floppy, jumper, connections