21xx 386SX 25 MHz / 4MB RAM and 512KB VRAM

21xx 386SX-25 MHz / 4MB RAM and 512KB VRAM


B2 Battery
J1 72-Pin Memory SIMM Bank 1
J2 72-Pin Memory SIMM Bank 0
J3 VESA Video feature connector
J4 Display
J5 Parallel Port
J6 Riser
J7 Serial Port
J8 Password Bypass
J9 Mouse
J10 Keyboard
J11 Hard Disk Drive
J12 Beeper Bypass
J13 PINs 1 and 2 = Power On LED
PINs 3 and 4 = Hard Disk LED

J14 Diskette
J15 Power

U10 386SX Processor
U20 BIOS
U23 Math Coprocessor

U5 512K x 9 System Memory
U6 512K x 9 System Memory
U8 512K x 9 System Memory
U9 512K x 9 System Memory
U13 512K x 9 System Memory
U14 512K x 9 System Memory
U16 512K x 9 System Memory
U17 512K x 9 System Memory

U32 256K x 4 Video Memory
U33 256K x 4 Video Memory
U35 256K x 4 Video Memory
U36 256K x 4 Video Memory


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