DIAMOND FLOWER, INC.
RACER-286
|
Processor |
80286 (exact location unknown) |
|
Processor Speed |
6/12.5MHz |
|
Chip Set |
Suntac |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J20 |
External battery |
JP12 |
|
Turbo LED |
JP8 |
Reset switch |
JP6 |
|
Speaker |
JP10 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
|
Wait state select 0 wait states |
JP5 |
Closed |
|
Wait state select 1 wait state |
JP5 |
Open | |
|
|
Clock speed control keyboard |
JP9 |
pins 1 & 2 closed |
|
Clock speed control DIP switch |
JP9 |
pins 2 & 3 closed | |
|
|
On board battery enabled |
JP11 |
Closed |
|
On board battery disabled |
JP11 |
Open | |
|
|
Monitor type select color |
SW1/2 |
On |
|
Monitor type select monochrome |
SW1/2 |
Off | |
|
|
Parity check enabled |
SW1/3 |
On |
|
Parity check disabled |
SW1/3 |
Off | |
|
|
Port address select 0E8H |
SW1/4 |
On |
|
Port address select 098H |
SW1/4 |
Off | |
|
|
BIOS type select 27128 |
SW1/5 |
On |
|
BIOS type select 27256 |
SW1/5 |
Off | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
512KB |
(16) 41256 |
NONE |
NONE |
NONE |
|
512KB |
NONE |
NONE |
(4) 44256 |
NONE |
|
640KB |
(16) 41256 |
(16) 4164 |
NONE |
NONE |
|
1MB |
(16) 41256 |
(16) 41256 |
NONE |
NONE |
|
1MB |
NONE |
NONE |
(4) 44256 |
(4) 44256 |
|
2MB |
(16) 411000 |
NONE |
NONE | |
|
4MB |
(16) 411000 |
(16) 411000 |
NONE |
NONE |
|
Note: When installing the above chips, do not use sockets IC9, IC21, IC36 & IC45. | ||||
|
DRAM CONFIGURATION (PARITY CHIP) | ||||
|
Size |
IC9, IC21 |
IC36, IC45 |
U38 - U39 |
U40 - U41 |
|
512KB |
(2) 41256 |
NONE |
NONE |
NONE |
|
512KB |
NONE |
NONE |
(2) 41256 |
NONE |
|
640KB |
(2) 41256 |
(2) 4164 |
NONE |
NONE |
|
1MB |
(2) 41256 |
(2) 41256 |
NONE |
NONE |
|
1MB |
NONE |
NONE |
(2) 41256 |
(2) 41256 |
|
2MB |
(2) 411000 |
NONE |
NONE |
NONE |
|
4MB |
(2) 411000 |
(2) 411000 |
NONE |
NONE |
|
Note:This section is used only if parity chips are installed. | ||||
|
DRAM SWITCH CONFIGURATION | ||||||
|
Size |
SW1/6 |
SW1/7 |
SW1/8 |
Conventional |
Extended |
Expanded |
|
512KB |
On |
On |
On |
512KB |
0KB |
0KB |
|
640KB |
On |
On |
Off |
640KB |
0KB |
0KB |
|
1MB |
On |
Off |
On |
640KB |
384KB |
0KB |
|
1MB |
On |
Off |
Off |
640KB |
0KB |
384KB |
|
2MB |
Off |
On |
On |
640KB |
1408KB |
0KB |
|
2MB |
Off |
On |
Off |
640KB |
0KB |
1408KB |
|
4MB |
Off |
Off |
On |
640KB |
3456KB |
0KB |
|
4MB |
Off |
Off |
Off |
640KB |
0KB |
3456KB |
|
CPU SPEED CONFIGURATION | ||
|
Speed |
JP7 |
SW1/1 |
|
6MHz |
Open |
On |
|
12.5MHz |
Closed |
Off |
|
KEYBOARD BIOS CONFIGURATION | ||||
|
Connector |
JP1 |
JP2 |
JP3 |
JP4 |
|
8742 |
pin 32 |
pin 27 |
pin 23 |
pin30 |