MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
MICROFRAME 486EX
|
Processor |
80486DX |
|
Processor Speed |
25/33Mhz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
64MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
355mm x 304mm |
|
I/O Options |
None |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
CPU ready LED |
J9 |
|
Power LED & keylock |
J2 |
Auxiliary keyboard |
J12 |
|
Disk acess connector |
J3 |
PS/2 mouse port |
J13 |
|
Front panel/ribbon cable connector |
J7 |
Speaker |
J28 |
|
Reset switch |
J8 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
|
IRQ12 enabled for mouse |
J11 |
pins 1 & 2 closed |
|
IRQ12 disabled |
J11 |
pins 2 & 3 closed | |
|
|
CPU speed select 25MHz |
J29 |
pins 1 & 2 closed |
|
CPU speed select 33MHz |
J29 |
pins 2 & 3 closed | |
|
|
Wait state enabled |
J30 |
Closed |
|
Wait state disabled |
J30 |
Open | |
|
|
Factory configured - do not alter |
J35 |
Open |
|
|
Factory configured - do not alter |
J36 |
Open |
|
|
CMOS memory normal operation |
J45 |
Open |
|
CMOS memory clear |
J45 |
Closed | |
|
|
DMA active select high |
J46 |
pins 1 & 2 closed |
|
DMA active select low |
J46 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
SW1/switch 1 |
Off |
|
|
Factory configured - do not alter |
SW1/switch 2 |
Off |
|
Factory configured - do not alter |
SW1/switch 3 |
Off | |
|
|
Monitor type select color |
SW1/switch 4 |
On |
|
Monitor type select monochrome |
SW1/switch 4 |
Off | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
8MB |
(2) 4M x 36 |
NONE |
NONE |
NONE |
|
16MB |
(2) 4M x 36 |
(2) 4M x 36 |
NONE |
NONE |
|
16MB |
NONE |
(2) 8M x 36 |
NONE |
NONE |
|
24MB |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
NONE |
|
24MB |
NONE |
(2) 4M x 36 |
(2) 8M x 36 |
NONE |
|
32MB |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
|
32MB |
NONE |
(2) 8M x 36 |
(2) 8M x 36 |
NONE |
|
32MB |
NONE |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 8M x 36 |
|
40MB |
NONE |
(2) 4M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
|
40MB |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 8M x 36 |
|
48MB |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 8M x 36 |
|
48MB |
NONE |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
|
56MB |
(2) 4M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
|
64MB |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |