EFA CORPORATION
ECA 34M33
|
Processor |
80386DX/80486SX/80486DX |
|
Processor Speed |
16/20/25/33/40/50MHz |
|
Chip Set |
UMC |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
Turbo LED |
J4 |
|
Speaker |
J2 |
Turbo switch |
J5 |
|
Reset switch |
J3 |
External battery |
J17 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
Monitor type select color |
J16 |
Open | |
|
Monitor type select monochrome |
J16 |
Closed | |
|
Factory configured - do not alter |
J21 |
N/A | |
|
BIOS type select 27512 |
J22 |
pins 2 & 3 closed | |
|
BIOS type select 271024 |
J22 |
pins 1 & 2 closed | |
|
CPU type select 80486DX |
J23 |
pins 2 & 3 closed | |
|
CPU type select 80486SX |
J23 |
pins 1 & 2 closed | |
|
CPU type select 80386DX |
J23 |
Open | |
|
Factory configured - do not alter |
S2/5 |
N/A | |
|
Factory configured - do not alter |
S2/8 |
N/A | |
|
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 |
|
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 |
|
CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
TAG (U22) |
TAG (U24) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 32K x 8 |
(1) 16K x 4 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 32K x 8 |
(1) 16K x 4 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
(1) 16K x 4 |
|
CACHE JUMPER CONFIGURATION | |||||||||
|
Size |
J7 |
J8 |
J9 |
J10 |
J11 |
J12 |
J13 |
J14 |
J15 |
|
64KB |
2 & 3 |
2 & 3 |
Open |
Open |
Open |
Open |
Closed |
1 & 2 |
Open |
|
128KB |
1 & 2 |
2 & 3 |
Open |
Closed |
Open |
Closed |
Closed |
2 & 3 |
1 & 2 |
|
256KB |
1 & 2 |
1 & 2 |
Closed |
Closed |
Closed |
Closed |
Closed |
1 & 2 |
2 & 3 |
|
Note:Pins designated should be in the closed position. | |||||||||
|
CPU TYPE CONFIGURATION (A) | ||||
|
Type |
S3/1 |
S3/2 |
S3/3 |
S3/4 |
|
80386DX-16 |
Off |
Off |
On |
On |
|
80386DX-20 |
Off |
Off |
On |
Off |
|
80386DX-33 |
On |
On |
Off |
On |
|
80386DX-40 |
On |
On |
On |
On |
|
80486SX-20 |
On |
Off |
On |
Off |
|
80486DX-25 |
On |
Off |
Off |
Off |
|
80486DX-33 |
On |
Off |
Off |
On |
|
80486DX-50 |
Off |
On |
Off |
Off |
|
Note: All CPU configurations (Tables A, B & Jumper J23) must be set for proper operation. | ||||
|
CPU TYPE CONFIGURATION (B) | |||||
|
Type |
S1/1 |
S1/2 |
S1/3 |
S1/4 |
S2/1 |
|
80386DX |
On |
On |
Off |
Off |
On |
|
80486SX |
Off |
Off |
On |
On |
Off |
|
80486DX |
On |
On |
Off |
Off |
Off |
|
CPU TYPE CONFIGURATION (B CONT) | |||||
|
Type |
S2/2 |
S2/3 |
S2/4 |
S2/6 |
S2/7 |
|
80386DX |
On |
On |
On |
Off |
Off |
|
80486SX |
Off |
Off |
Off |
On |
On |
|
80486DX |
Off |
Off |
Off |
On |
On |