DIAMOND FLOWER, INC.
DFI-386SX
|
Processor |
80386SX |
|
Processor Speed |
16MHz |
|
Chip Set |
Intel |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
DFI |
|
Dimensions |
330mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Turbo LED |
J12 |
|
Turbo switch |
J2/J11 |
Power LED & keylock |
J13 |
|
Reset switch |
J3/J9 |
Auxiliary keyboard |
J14 |
|
Speaker |
J10 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
Battery select internal |
J4 |
pins 2 & 3 closed |
|
Battery select external |
J4 |
pins 1 & 2 closed | |
| » |
Monitor type select monochrome |
J5 |
pins 2 & 3 closed |
|
Monitor type select color |
J5 |
pins 1 & 2 closed | |
| » |
BIOS type select 27256 |
J6 |
pins 2 & 3 closed |
|
BIOS type select 27512 |
J6 |
pins 1 & 2 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
512KB |
(18 41256 |
NONE |
NONE |
NONE |
|
512KB |
NONE |
NONE |
(2) 256K x 9 |
NONE |
|
1MB |
(18) 41256 |
(18) 41256 |
NONE |
NONE |
|
1MB |
NONE |
NONE |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(18) 41256 |
(18) 41256 |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(18) 411000 |
NONE |
NONE |
NONE |
|
2MB |
NONE |
NONE |
(2) 1M x 9 |
NONE |
|
4MB |
(18) 411000 |
(18) 411000 |
NONE |
NONE |
|
4MB |
NONE |
NONE |
(2) 1M x 9 |
(2) 1M x 9 |
|
8MB |
(18) 411000 |
(18) 411000 |
(2) 1M x 9 |
(2) 1M x 9 |
|
DRAM JUMPER CONFIGURATION | ||||||
|
Size |
J15 |
J16 |
J17 |
J18 |
J19 |
J20 |
|
512KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
512KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
1MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
1MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
2MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
2MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
2MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
4MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
4MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
8MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | ||||||
|
DRAM MODE CONFIGURATION | ||||
|
Mode |
Maximum active pages |
DRAM type |
J7 |
J8 |
|
Fast page 1 (FP1) |
4 |
100ns |
Open |
Open |
|
Fast page 2 (FP2) |
1 |
100ns |
Open |
Closed |
|
Slow page 1 (SP1) |
4 |
100ns |
Closed |
Open |
|
Slow page 2 (SP2) |
4 |
120ns |
Closed |
Closed |
|
Note:In order to use fast page modes, the DRAM chips must meet the following specifications: tCAS (access time)=35ns , tCAC (pulse width)=35ns , tCP (precharge time)=20ns. | ||||