ROBOTECH, INC.
COBRA RS
|
Processor |
80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
128MB |
|
Cache |
256/512/1024KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (3), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
JP2 |
Turbo switch |
JP19 |
|
Green power supply |
JP3 |
Green PC hardware switch |
JP20 |
|
Keyboard connector |
JP16 |
Turbo LED |
JP21 |
|
Speaker |
JP17 |
Reset switch |
JP26 |
|
Green PC LED |
JP18 |
32-bit VESA local bus slots |
SL1 - SL3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
CMOS memory normal operation |
JP1 |
pins 1 & 2 closed |
|
CMOS memory clear |
JP1 |
pins 2 & 3 closed | |
|
|
Monitor type select color |
JP4 |
Closed |
|
Monitor type select monochrome |
JP4 |
Open | |
|
|
Flash BIOS voltage select 5v |
JP5 |
pins 1 & 2 closed |
|
Flash BIOS voltage select 12v |
JP5 |
pins 2 & 3 closed | |
|
|
CPU type select Intel |
JP15 |
pins 1 & 2 closed |
|
CPU type select Cyrix |
JP15 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP24 |
Open |
|
|
Factory configured - do not alter |
JP25 |
Open |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
64MB |
(4) 8M x 9 |
(4) 8M x 9 |
|
128MB |
(4) 16M x 9 |
(4) 16M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
512KB |
(4) 128K x 8 |
NONE |
(1) 32K x 8 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JP11 |
JP12 |
|
256KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
512KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
1MB |
pins 2 & 4 closed |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION | |||
|
Type |
JP8 |
JP9 |
JP10 |
|
80486SX |
pins 2 & 3 closed |
Open |
Open |
|
80487SX |
pins 1 & 2, 3 & 4 closed |
Open |
Open |
|
80486DX/DX2 |
pins 1 & 2, 3 & 4 closed |
pins 2 & 3 closed |
Open |
|
Pentium Overdrive |
pins 1 & 2, 3 & 4 closed |
pins 1 & 2 closed |
Closed |
|
CPU SPEED CONFIGURATION | ||||
|
Speed |
JP13 |
JP14 |
JP27 |
JP28 |
|
25MHz |
Closed |
pins 1 & 2 closed |
pins 2 & 4 closed |
pins 2 & 3 closed |
|
33MHz |
Open |
pins 1 & 2, 5 & 6 closed |
pins 2 & 4 closed |
pins 2 & 3 closed |
|
40MHz |
Open |
pins 1 & 2, 3 & 4 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
50iMHz |
Closed |
pins 1 & 2 closed |
pins 2 & 4 closed |
pins 2 & 3 closed |
|
50MHz |
Open |
pins 1 & 2, 3 & 4, 5 & 6 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
66iMHz |
Open |
pins 1 & 2, 5 & 6 closed |
pins 2 & 4 closed |
pins 2 & 3 closed |
|
BUS SPEED CONFIGURATION | |
|
CPU speed |
JP22 |
|
<=33MHz |
Open |
|
>33MHz |
Closed |
|
VESA WAIT STATE CONFIGURATION | |
|
Wait states |
JP23 |
|
0 wait states |
Open |
|
1 wait state |
Closed |