UNIDENTIFIED
ELT-286B-120GM
|
Processor |
80286 |
|
Processor Speed |
10/12MHz |
|
Chip Set |
G-2 |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
AMI/Phoenix |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
J5 |
External battery |
J24 |
|
Power LED & keylock |
J18 |
Turbo switch |
J25 |
|
Speaker |
J19 |
Reset switch |
J30 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
Factory configured - do not alter |
DSW1/1 |
N/A | |
|
NPU mode select synchronous with CPU |
JNP |
pins 1 & 2 closed | |
|
NPU mode select asynchronous with CPU |
JNP |
pins 2 & 3 closed | |
|
Wait state select CTRL-ALT-0 = 0 wait, CTRL-ALT-1 is 1 wait |
JP2 |
pins 1 & 2 closed | |
|
Wait states select zero |
JP2 |
pins 2 & 3 closed | |
|
Wait state select one |
JP2 |
Open | |
|
Factory test disabled |
JP22 |
Open | |
|
Factory test enabled |
JP22 |
Closed | |
|
CPU speed select switchable from keyboard |
JP25 |
Open | |
|
CPU speed select fast |
JP25 |
Closed | |
|
Factory configured - do not alter |
JPX |
N/A | |
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
Bank 4 |
Bank 5 |
|
256KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
256KB |
NONE |
NONE |
NONE |
NONE |
(2) 256K x 9 |
NONE |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
512KB |
NONE |
NONE |
NONE |
NONE |
(2) 256K x 9 |
NONE |
|
640KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(4) 4164 |
NONE |
NONE |
|
640KB |
NONE |
NONE |
(4) 4464 |
(4) 4164 |
(2) 256K x 9 |
NONE |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
|
1MB |
NONE |
NONE |
NONE |
NONE |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
NONE |
NONE |
NONE |
NONE |
(2) 1M x 9 |
NONE |
|
4MB |
NONE |
NONE |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
|
DRAM SWITCH CONFIGURATION | |||
|
Size |
DSW1/2 |
DSW1/3 |
DSW1/4 |
|
256KB |
On |
On |
On |
|
512KB |
On |
On |
Off |
|
640KB |
On |
Off |
On |
|
1MB |
On |
Off |
Off |
|
2MB |
Off |
Off |
On |
|
4MB |
Off |
Off |
Off |