DTK COMPUTER, INC.
FEAT-5031
Processor | 80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 16/20/25/33/50(internal)/50MHz |
Chip Set | Symphony |
Max. Onboard DRAM | 32MB |
Cache | 64/256KB |
BIOS | AMI/DTK |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Reset switch | J1 | Turbo LED | J4 |
Turbo switch | J2 | Power LED & keylock | J5 |
Speaker | J3 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
Turbo enabled | J2 | Open | |
Turbo disabled | J2 | Pins 1 & 2 closed | |
Turbo controlled by keyboard CTRL, ALT, - | J2 | Pins 2 & 3 closed | |
» | Cache wait state select 0 wait states | J9 | Closed |
» | Cache wait state select 1 wait state | J9 | Open |
» | Monitor type select monochrome | J13 | Pins 1 & 2 closed |
Monitor type select color | J13 | Pins 2 & 3 closed |
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 |
5MB | (4) 256K x 9 | (4) 1M x 9 |
5MB | (4) 1M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
17MB | (4) 256K x 9 | (4) 4M x 9 |
17MB | (4) 4M x 9 | (4) 256K x 9 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | ||
Size | Bank 0 | TAG |
64KB | (8) 8K x 8 | (1) 8K x 8 |
256KB | (8) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||
Size | J6 | J7 | J8 |
64KB | Pins 1 & 2 closed | Pins 1 & 2 closed | Pins 1 & 2 closed |
256KB | Pins 2 & 3 closed | Pins 2 & 3 closed | Pins 2 & 3 closed |
CPU TYPE CONFIGURATION | |||
Type | J10 | J11 | J12 |
80486SX | Open | Pins 2 & 3 closed | Open |
80487SX | N/A | N/A | N/A |
80486DX | Closed | Pins 1 & 2 closed | Closed |
80486DX2 | Closed | Pins 1 & 2 closed | Closed |
CPU SPEED CONFIGURATION | |||||
Speed | J14 | J15 | J16 | J17 | J18 |
16MHz | Closed | Open | Open | Pins 1 & 2 closed | Open |
20MHz | Closed | Open | Open | Pins 1 & 2 closed | Open |
25MHz | Closed | Open | Open | Pins 1 & 2 closed | Open |
33MHz | Closed | Open | Open | Pins 1 & 2 closed | Open |
50iMHz | Closed | Open | Open | Pins 1 & 2 closed | Closed |
50MHz (A) | Closed | Closed | Closed | Pins 2 & 3 closed | Closed |
50MHz (B) | Open | Closed | Open | Pins 2 & 3 closed | Closed |
Note: (A) 20ns cache installed. (B) 15ns cache installed. |