UNIDENTIFIED
HT101A 286
|
Processor |
80286 |
|
Processor Speed |
10/12MHz |
|
Chip Set |
Unknown |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo switch |
J4 |
Speaker |
J17 |
|
External battery |
J14 |
Turbo LED |
J19 |
|
Power LED & keylock |
J16 |
Reset switch |
J20 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
NPU mode select synchronous with CPU |
JP2 |
pins 2 & 3 closed | |
|
NPU mode select asynchronous with CPU |
JP2 |
pins 1 & 2 closed | |
|
Parity check enabled |
JP3 |
Closed | |
|
Parity check disabled |
JP3 |
Open | |
|
CPU speed select [CTRL][ALT][+] = fast, [CTRL][ALT][-] = slow |
JP4 |
pins 1 & 2 closed | |
|
CPU speed select fast |
JP4 |
pins 2 & 3 closed | |
|
DRAM select 0 wait states |
J18 |
pins 2 & 3 closed | |
|
DRAM select 1 wait state |
J18 |
Open | |
|
DRAM wait state select [CTRL][ALT][0] = 0 [CTRL][ALT][1] = 1 |
J18 |
pins 1 & 2 closed | |
|
Monitor type select color |
SW1/1 |
On | |
|
Monitor type select monochrome |
SW1/1 |
Off | |
|
DRAM CONFIGURATION | ||||||
|
Size |
Bank 0 |
P-0 |
Bank 1 |
P-1 |
Bank 2 |
Bank 3 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
NONE |
NONE |
|
640KB |
(4) 44256 |
(2) 41256 |
(4) 4464 |
(2) 4164 |
NONE |
NONE |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
|
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 |
SW1/2 |
SW1/3 |
SW1/4 |
|
512KB |
On |
On |
Off |
|
640KB |
On |
Off |
On |
|
1MB |
On |
Off |
Off |
|
2MB |
Off |
Off |
On |
|
4MB |
Off |
Off |
Off |