AMERICAN MEGATRENDS, INC.
ENTERPRISE-II SERIES 16
|
Device Type |
Mainboard |
|
Processor |
80486SX/80487SX/80486DX |
|
Processor Speed |
25/33/50MHz |
|
Chip Set |
Intel |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
96MB |
|
Maximum Video Memory |
None |
|
Cache |
128KB |
|
BIOS |
AMI |
|
Dimensions |
355mm x 304mm |
|
I/O Options |
External memory card, floppy drive interface, PS/2 mouse port |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
AMI module connector |
J5 |
Turbo switch |
J18 |
|
PS/2 mouse port |
J6 |
Turbo LED |
J19 |
|
Floppy drive interface |
J8 |
Power connector |
PS1 |
|
AMI module connector |
J9 |
Power connector |
PS2 |
|
Speaker |
J13 |
Power connector |
PS3 |
|
Power LED & keylock |
J14 |
External memory card |
SL1 |
|
Reset switch |
J17 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
» |
Floppy drive select XT/AT |
J12 |
Pins 1 & 2 closed |
|
Floppy drive select PS/2 |
J12 |
Pins 2 & 3 closed | |
|
» |
Factory configured - do not alter |
J22 |
Closed |
|
» |
Factory configured - do not alter |
SW1/1 |
Off |
|
» |
Monitor type select monochrome |
SW1/2 |
Off |
|
Monitor type select color |
SW1/2 |
On | |
|
SIMM CONFIGURATION (MAINBOARD) | ||
|
Size |
Bank 0 |
Bank 1 |
|
4MB |
(4) 1M x 9 |
None |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
None |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
SIMM CONFIGURATION (EXTERNAL MEMORY CARD) | ||||
|
Size |
Bank 2 |
Bank 3 |
Bank 4 |
Bank 5 |
|
4MB |
(4) 1M x 9 |
None |
None |
None |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
None |
None |
|
8MB |
(4) 1M x 9 |
None |
(4) 1M x 9 |
None |
|
16MB |
(4) 4M x 9 |
None |
None |
None |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
None |
None |
|
32MB |
(4) 4M x 9 |
None |
(4) 4M x 9 |
None |
|
64MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
|
Note: To install maximum memory of 96MB, fully populate mainboard with 32MB & install memory card with 64MB installed. | ||||
|
CACHE CONFIGURATION | |
|
Size |
Bank 0 |
|
128KB |
(4) 32K x 8 |
|
CPU SPEED SELECTION | |||
|
Speed |
J2 |
J27 |
J35 |
|
25MHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
33MHz |
Pins 1 & 2 closed |
Open |
Pins 2 & 3 closed |
|
50MHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
Note: If CPU is revision, B6 or earlier, leave J2 open. | |||
|
CPU TYPE SELECTION | ||
|
Type |
J36 |
J37 |
|
80486SX |
Pins 2 & 3 closed |
Open |
|
80487SX |
Pins 1 & 2, 3 & 4 closed |
Pins 2 & 3 closed |
|
80486DX |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
|
P24 |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |