UNIDENTIFIED
A-B 333SX
|
Processor |
AM386SX/80386SX |
|
Processor Speed |
25/33MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
16MB |
|
Cache |
16/32/64/128KB |
|
BIOS |
AMI |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80387SX (exact location unidentified) |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J10 |
Turbo switch |
JP9 |
|
Power LED & keylock |
J15 |
Turbo LED |
JP12 |
|
Speaker |
J18 |
Reset switch |
JP13 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
CMOS memory normal operation (internal battery) |
JP8 |
pins 2 & 3 closed |
|
CMOS memory normal operation (external battery) |
JP8 |
Open | |
|
CMOS memory clear |
JP8 |
pins 1 & 2 closed | |
|
» |
Monitor type select color |
JP10 |
Closed |
|
Monitor type select monochrome |
JP10 |
Open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(2) 256K x 9 |
NONE |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
NONE |
|
2.5MB |
(2) 1M x 9 |
(2) 256K x 9 |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
|
8MB |
(2) 4M x 9 |
NONE |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
16KB |
(2) 8K x 8 |
NONE |
|
32KB |
(2) 8K x 8 |
(2) 8K x 8 |
|
64KB |
(2) 32K x 8 |
NONE |
|
128KB |
(2) 32K x 8 |
(2) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
JP1 |
JP2 |
JP3 |
JP4 |
|
16KB |
pins 2 & 3 closed |
Open |
Open |
pins 2 & 3 closed |
|
32KB |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
64KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
128KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
Note: Jumper location is approximated, check board for actual location. | ||||