|
LASER 8088 MAIN BOARD (VER. 1)
LASER COMPUTER, INC.
LASER 8088 MAIN BOARD (VER. 1)
|
Processor
|
8088
|
|
Processor Speed
|
10MHz
|
|
Chipset
|
Unidentified
|
|
Maximum Onboard Memory
|
1664KB DRAM
|
|
BIOS
|
Unidentified
|
|
Dimensions
|
270 x 218mm
|
|
I/O Options
|
None
|
|
NPU Options
|
8087
|
|
CONNECTIONS
|
|
Purpose
|
Location
|
Purpose
|
Location
|
|
Speaker
|
J11
|
Power LED & keylock
|
J12
|
|
USER CONFIGURABLE SETTINGS
|
|
Function
|
Label
|
Position
|
|
»
|
Factory configured - do not alter
|
SW1/1
|
Off
|
|
»
|
NPU not installed
|
SW1/2
|
Off
|
|
|
NPU installed
|
SW1/2
|
On
|
|
»
|
Factory configured - do not alter
|
SW2/7
|
N/A
|
|
»
|
Factory configured - do not alter
|
SW2/8
|
N/A
|
|
DRAM CONFIGURATION
|
|
Size
|
Bank 0
|
Bank 1
|
Bank 2
|
Bank 3
|
|
256KB
|
(9) 41256
|
None
|
None
|
None
|
|
512KB
|
(9) 41256
|
(9) 41256
|
None
|
None
|
|
576KB
|
(9) 41256
|
(9) 41256
|
(9) 4164
|
None
|
|
640KB
|
(9) 41256
|
(9) 41256
|
(9) 4164
|
(9) 4164
|
|
896KB
|
(9) 41256
|
(9) 41256
|
(9) 4164
|
(9) 4164
|
|
1152KB
|
(9) 41256
|
(9) 41256
|
(9) 4164
|
(9) 4164
|
|
1408KB
|
(9) 41256
|
(9) 41256
|
(9) 4164
|
(9) 4164
|
|
1664KB
|
(9) 41256
|
(9) 41256
|
(9) 4164
|
(9) 4164
|
|
DRAM CONFIGURATION
|
|
Size
|
Bank 4
|
Bank 5
|
Bank 6
|
Bank 7
|
|
256KB
|
None
|
None
|
None
|
None
|
|
512KB
|
None
|
None
|
None
|
None
|
|
576KB
|
None
|
None
|
None
|
None
|
|
640KB
|
None
|
None
|
None
|
None
|
|
896KB
|
(9) 4164
|
None
|
None
|
None
|
|
1152KB
|
(9) 4164
|
(9) 4164
|
None
|
None
|
|
1408KB
|
(9) 4164
|
(9) 4164
|
(9) 4164
|
None
|
|
1664KB
|
(9) 4164
|
(9) 4164
|
(9) 4164
|
(9) 4164
|
|
DRAM CONFIGURATION
|
|
Size
|
SW1/3
|
SW1/4
|
|
256KB
|
On
|
On
|
|
512KB
|
Off
|
On
|
|
576KB
|
On
|
Off
|
|
640KB
|
Off
|
Off
|
|
896KB
|
Off
|
Off
|
|
1152KB
|
Off
|
Off
|
|
1408KB
|
Off
|
Off
|
|
1664KB
|
Off
|
Off
|
|
EXPANDED MEMORY BANK 4 AND 5 ADDRESS
|
|
Setting
|
SW2/1
|
SW2/2
|
SW2/3
|
|
208h
|
Off
|
On
|
On
|
|
218h
|
On
|
Off
|
On
|
|
258h
|
Off
|
Off
|
On
|
|
268h
|
On
|
On
|
Off
|
|
2A8h
|
Off
|
On
|
Off
|
|
2B8h
|
On
|
Off
|
Off
|
|
2E8h
|
Off
|
Off
|
Off
|
|
Disabled
|
On
|
On
|
On
|
|
EXPANDED MEMORY BANK 6 AND 7 ADDRESS
|
|
Setting
|
SW2/4
|
SW2/5
|
SW2/6
|
|
208h
|
Off
|
On
|
On
|
|
218h
|
On
|
Off
|
On
|
|
258h
|
Off
|
Off
|
On
|
|
268h
|
On
|
On
|
Off
|
|
2A8h
|
Off
|
On
|
Off
|
|
2B8h
|
On
|
Off
|
Off
|
|
2E8h
|
Off
|
Off
|
Off
|
|
Disabled
|
On
|
On
|
On
|
|
FLOPPY DRIVE CONFIGURATION
|
|
Setting
|
SW1/7
|
SW1/8
|
|
1 drive attached
|
On
|
On
|
|
2 drives attached
|
Off
|
On
|
|
3 drives attached
|
On
|
Off
|
|
4 drives attached
|
Off
|
Off
|
|
MONITOR TYPE SELECTION
|
|
Setting
|
SW1/5
|
SW1/6
|
|
Monochrome
|
Off
|
Off
|
|
CGA, 40 x 25
|
Off
|
On
|
|
CGA, 80 x 25
|
On
|
Off
|
|
EGA or no monitor
|
On
|
On
|
|