DASH COMPUTER, INC.
DC3486 VESA
|
Processor |
80386DX/CX486DLC/80486SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
311mm x 226mm |
|
I/O Options |
32-bit VESA card slot (2) |
|
NPU Options |
80387DX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Turbo LED |
JP32 |
|
Power LED & keylock |
J19 |
Reset switch |
SW1 |
|
Speaker |
J20 |
32-bit VESA local bus slots (2) |
S1 & S2 |
|
Turbo switch |
JP31 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
CMOS memory normal operation |
JP1 |
pins 2 & 3 closed |
|
CMOS memory clear |
JP1 |
pins 1 & 2 closed | |
| » |
Factory configured - do not alter |
JP2 |
open |
|
AT Bus speed select CLK/5 with 80386 CPU |
JP3 |
open | |
|
AT Bus speed select CLK/4 with 80386 CPU |
JP3 |
closed | |
| » |
Monitor type select color |
JP4 |
open |
|
Monitor type select monochrome |
JP4 |
closed | |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
JP10 |
JP11 |
JP13 |
JP15 |
|
64KB |
pins 2 & 3 closed |
open |
open |
open |
|
128KB |
pins 1 & 2 closed |
closed |
closed |
open |
|
256KB |
pins 2 & 3 closed |
closed |
closed |
closed |
|
CACHE CONFIGURATION | ||||
|
Size |
Cache |
Location |
TAG (U39) |
TAG (U40) |
|
64KB |
(8) 8K x 8 |
Banks 0 & 1 |
(1) 8K x 8 |
NONE |
|
128KB |
(4) 32K x 8 |
Bank 0 |
(1) 8K x 8 |
(1) 8K x 8 |
|
256KB |
(8) 32K x 8 |
Banks 0 & 1 |
(1) 8K x 8 |
(1) 8K x 8 |
|
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) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
SLOTS 3 & 4 BUS CONFIGURATION | |||||||
|
Bus Type |
JP8 & 9 |
JP14 & 16 |
JP23 & 27 |
JP19 |
JP21 |
JP24 | |
| » |
VESA |
open |
open |
pins 1 & 2 |
open |
open |
open |
|
AT |
closed |
closed |
pins 2 & 3 |
closed |
closed |
closed | |
|
Note:Slots 3 & 4 must both be configured as either 16-bit or 32-bit. Note:Pins designated should be in the closed position. | |||||||
|
CONFIGURATION FOR 80486DX & 80486DX2 CPU | ||||||
|
Jumper |
Postition |
25MHz |
33MHz |
50iMHz |
50MHz |
66iMHz |
|
JP5 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
|
JP6 |
open |
open |
open |
open |
open |
open |
|
JP7 |
open |
open |
open |
open |
open |
open |
|
JP12 |
closed |
closed |
closed |
closed |
closed |
closed |
|
JP17 |
closed |
closed |
closed |
closed |
closed |
closed |
|
JP18 |
open |
open |
open |
open |
open |
open |
|
JP22 |
N/A |
open |
open |
open |
closed |
open |
|
JP25 |
N/A |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
pins 2 & 3 |
|
JP26 |
N/A |
open |
open |
open |
closed |
open |
|
JP28 |
N/A |
closed |
open |
closed |
closed |
open |
|
JP29 |
N/A |
open |
closed |
open |
open |
closed |
|
JP30 |
N/A |
open |
open |
open |
open |
open |
|
JP33 |
N/A |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
pins 2 & 3 |
|
JP34 |
N/A |
closed |
closed |
closed |
closed |
closed |
|
JP35 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
|
JP36 |
closed |
closed |
closed |
closed |
closed |
closed |
|
JP37 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
|
Note:Pins designated should be in the closed position. | ||||||
|
CONFIGURATION FOR 80486SX CPU | |||
|
Jumper |
Position |
25MHz |
33MHz |
|
JP5 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
JP6 |
open |
open |
open |
|
JP7 |
open |
open |
open |
|
JP12 |
closed |
closed |
closed |
|
JP17 |
see note 1 |
see note 1 |
see note 1 |
|
JP18 |
open |
open |
open |
|
JP22 |
N/A |
open |
open |
|
JP25 |
N/A |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
JP26 |
N/A |
open |
open |
|
JP28 |
N/A |
closed |
closed |
|
JP29 |
N/A |
open |
closed |
|
JP30 |
N/A |
open |
open |
|
JP33 |
N/A |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
JP34 |
N/A |
closed |
closed |
|
JP35 |
open |
open |
open |
|
JP36 |
open |
open |
open |
|
JP37 |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
Note 1 :Jumper JP17 should be closed when a PGA cpu is installed, open for PQFP. | |||
|
CONFIGURATION FOR 80386DX & CX486DLC CPU | |||
|
Jumper |
Position |
33MHz |
40MHz |
|
JP5 |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
JP6 |
see note 1 |
see note 1 |
see note 1 |
|
JP7 |
open |
open |
open |
|
JP12 |
open |
open |
open |
|
JP17 |
open |
open |
open |
|
JP18 |
see note 2 |
see note 2 |
see note 2 |
|
JP22 |
N/A |
closed |
open |
|
JP25 |
N/A |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
JP26 |
N/A |
open |
closed |
|
JP28 |
N/A |
open |
open |
|
JP29 |
N/A |
closed |
open |
|
JP30 |
N/A |
closed |
closed |
|
JP33 |
N/A |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
JP34 |
N/A |
open |
open |
|
JP35 |
open |
open |
open |
|
JP36 |
open |
open |
open |
|
JP37 |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
Note 1 :Jumper JP6 should be closed when a CX486DLC is installed, open for 80386DX.Note 2 :Jumper JP18 should be closed when a PGA cpu is installed, open for PQFP. | |||