IBM CORPORATION

PS/2 MODEL 70 386 16/20RS

Processor	80386DX
Processor Speed	16/20MHz
Chip Set	IBM
Max. Onboard DRAM	6MB
Cache	None
BIOS	IBM
Dimensions	355mm x 240mm
I/O Options	Serial port, parallel port, pointing device connector, proprietary hard/floppy drive controller connector, proprietary 16-bit MCA video adapter slot, VGA port
NPU Options	80387

CONNECTIONS
Purpose	Location	Purpose	Location
Battery/speaker	J1	Keyboard	J5
Serial port	J2	Hard/floppy drive	J6
Parallel port	J3	Video adapter slot	J7
Pointing device	J4	Display connector	J8

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
1MB	(1) 256K x 36	NONE	NONE
2MB	(1) 256K x 36	(1) 256K x 36	NONE
2MB	(1) 512K x 36	NONE	NONE
3MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
4MB	(1) 512K x 36	(1) 512K x 36	NONE
5MB	(1) 256K x 36	(1) 512K x 36	(1) 512K x 36
6MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
Notes:SIMMs are a proprietary IBM design, standard 36-bit SIMMs can not be used. Onboard memory does not need to be installed in order to use memory expansion cards.

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