DASH COMPUTER, INC.
486 VL3 CACHE (MV035E)
|
Device Type |
Mainboard |
|
Processor |
80486SX/80487SX/80486DX/CX M6/CX M7/P24C/P24D/P24T |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)/100(internal)MHz |
|
Chip Set |
OPTI |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB |
|
Maximum Video Memory |
None |
|
Cache |
64/128/256/512KB |
|
BIOS |
Award |
|
Dimensions |
250mm x 220mm |
|
I/O Options |
32-bit VESA local bus slots (3), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J2 |
Speaker |
JP38 |
|
Power LED & keylock |
J22 |
Green PC connector |
JP39 |
|
Green PC connector |
JP6 |
Green PC LED |
JP41 |
|
Turbo LED |
JP34 |
Reset switch |
S1 |
|
Turbo switch |
JP36 |
32-bit VESA local bus slots |
SL1 – SL3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Monitor type select color |
JP1 |
Closed | |
|
Monitor type select monochrome |
JP1 |
Open | |
|
» |
CMOS memory normal operation |
JP2 |
Pins 2 & 3 closed |
|
CMOS memory clear |
JP2 |
Pins 1 & 2 closed | |
|
» |
Factory configured - do not alter |
JP7 |
Closed |
|
» |
Factory configured - do not alter |
JP31 |
Pins 2 & 3 closed |
|
DRAM CONFIGURATION 1 | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
None |
None |
None |
|
2MB |
(4) 256K x 9 |
(1) 256K x 36 |
None |
None |
|
4MB |
(4) 1M x 9 |
None |
None |
None |
|
4MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
5MB |
(4) 256K x 9 |
(1) 1M x 36 |
None |
None |
|
6MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
None |
|
8MB |
(4) 1M x 9 |
(1) 1M x 36 |
None |
None |
|
8MB |
(4) 1M x 9 |
None |
(1) 1M x 36 |
None |
|
10MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
12MB |
(4) 1M x 9 |
None |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(4) 4M x 9 |
None |
None |
None |
|
16MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
17MB |
(4) 256K x 9 |
(1) 4M x 36 |
None |
None |
|
20MB |
(4) 1M x 9 |
(1) 4M x 36 |
None |
None |
|
20MB |
(4) 1M x 9 |
None |
(1) 4M x 36 |
None |
|
32MB |
(4) 4M x 9 |
(1) 4M x 36 |
None |
None |
|
64MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
80MB |
(4) 4M x 9 |
(1) 16M x 36 |
None |
None |
|
96MB |
(4) 4M x 9 |
(1) 16M x 36 |
(1) 4M x 36 |
None |
|
112MB |
(4) 4M x 9 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
DRAM CONFIGURATION 2 | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
None |
(1) 256K x 36 |
None |
None |
|
4MB |
None |
(1) 1M x 36 |
None |
None |
|
8MB |
None |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
12MB |
None |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
None |
(1) 4M x 36 |
None |
None |
|
20MB |
None |
(1) 1M x 36 |
(1) 4M x 36 |
None |
|
32MB |
None |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
64MB |
None |
(1) 16M x 36 |
None |
None |
|
80MB |
None |
(1) 16M x 36 |
(1) 4M x 36 |
None |
|
96MB |
None |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
72MB |
None |
(1) 16M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
128MB |
None |
(1) 16M x 36 |
(1) 16M x 36 |
None |
|
DRAM JUMPER CONFIGURATION | |
|
Configuration |
JP5 |
|
1 |
Pins 2 & 3 closed |
|
2 |
Pins 1 & 2 closed |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
None |
(1) 8K x 8 |
|
256KB (A) |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 16K x 8 |
|
256KB (B) |
(2) 64K x 32 |
None |
(1) 32K x 8 |
|
512KB |
(4) 128K x 8 |
None |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
JP8 |
JP27 |
JP28 |
JP43 |
JP44 |
|
64KB |
2 & 3 |
Open |
Open |
Open |
1 & 2 |
|
128KB |
1 & 2 |
Closed |
Open |
Open |
1 & 2 |
|
256KB (A) |
2 & 3 |
Closed |
Closed |
Open |
2 & 3 |
|
256KB (B) |
2 & 3 |
Closed |
Closed |
Open |
1 & 2 |
|
512KB |
1 & 2 |
Closed |
Closed |
Closed |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU SPEED SELECTION | |||
|
Speed |
JP16 |
JP17 |
JP18 |
|
25MHz |
Open |
Open |
Open |
|
33MHz |
Open |
Closed |
Closed |
|
40MHz |
Open |
Closed |
Open |
|
50iMHz |
Open |
Open |
Open |
|
50MHz |
Open |
Open |
Closed |
|
66iMHz |
Open |
Closed |
Closed |
|
100iMHz |
Open |
Closed |
Closed |
|
CPU TYPE SELECTION | |||||||
|
Type |
JP9 |
JP11 |
JP12 |
JP13 |
JP15 |
JP23 |
JP32 |
|
80486SX |
Open |
1 & 2 |
Open |
Open |
Open |
2 & 3 |
Open |
|
80487SX |
Open |
1 & 2 |
Open |
2 & 3 |
Open |
1 & 2, 3 & 4 |
Open |
|
80486DX |
Open |
1 & 2 |
Open |
1 & 2 |
Open |
1 & 2, 3 & 4 |
Open |
|
CX M6 |
Closed |
2 & 3 |
2 & 3 |
Open |
Open |
2 & 3 |
1 & 2 |
|
CX M7 |
Closed |
2 & 3 |
2 & 3 |
1 & 2 |
Open |
1 & 2, 3 & 4 |
Open |
|
P24C |
Open |
1 & 2 |
Open |
1 & 2 |
Open |
1 & 2, 3 & 4 |
Open |
|
P24D |
Open |
2 & 3 |
Open |
1 & 2 |
Closed |
1 & 2, 3 & 4 |
2 & 3 |
|
P24T |
Open |
2 & 3 |
Open |
1 & 2 |
Open |
1 & 2, 3 & 4 |
Open |
|
Note: Pins designated should be in the closed position. | |||||||
|
CPU TYPE SELECTION (SL/NON-SL CPU) | ||||
|
Type |
JP10 |
JP12 |
JP20 |
JP21 |
|
SL-enhanced |
Open |
Open |
Open |
Open |
|
Non SL-enhanced |
Closed |
Pins 1 & 2 closed |
Closed |
Closed |
|
CPU TYPE SELECTION (CX M7) | |
|
Type |
JP22 |
|
All CPU types |
Open |
|
CX M7 2x |
Closed |
|
CPU TYPE SELECTION (P24D ONLY) | |
|
Type |
JP19 |
|
Write through |
Pins 2 & 3 closed |
|
Write back |
Pins 1 & 2 closed |
|
CPU MULTIPLIER SELECTION (80486DX4 ONLY) | |
|
Multiplier |
JP30 |
|
2x |
Pins 1 & 2 closed |
|
2.5x |
Pins 2 & 3 closed |
|
3x |
Open |
|
CPU VOLTAGE SELECTION | |
|
Voltage |
JP29 |
|
3.45v |
Pins 3 & 5, 4 & 6 closed |
|
5v |
Pins 1 & 3, 2 & 4 closed |
|
VL BUS WAIT STATE SELECTION | |
|
Setting |
JP35 |
|
0 |
Open |
|
1 |
Closed |
|
VL BUS SPEED SELECTION | ||
|
Speed |
JP33 |
JP37 |
|
<= 33MHz |
Pins 2 & 3 closed |
Open |
|
>33 MHz |
Pins 1 & 2 closed |
Closed |