INTEL CORPORATION
CLASSIC E EXPANDABLE DESKTOP
|
Processor |
80486SX/ODP486/80487SX/80486DX/80486DX2 |
|
Processor Speed |
16/20/25/33/50(internal)/66(internal)MHz |
|
Chip Set |
OPTI |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
64MB |
|
Maximum Video Memory |
None |
|
Cache |
64/128/256KB |
|
BIOS |
Phoenix |
|
Dimensions |
426mm x 416mm |
|
I/O Options |
32-bit VESA local bus slot, floppy drive interface, IDE interface, parallel port, serial ports (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Chassis fan power |
CN1 |
Serial port 2 |
J18 |
|
External battery |
CN2 |
Parallel port |
J19 |
|
Floppy drive interface |
J13 |
Front panel connector |
J25 |
|
IDE interface |
J14 |
32-bit VESA local bus slot |
SL1 |
|
Serial port 1 |
J16 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
|
Flash BIOS normal boot |
J3 |
Pins 2 & 3 closed |
|
Flash BIOS recovery mode boot |
J3 |
Pins 1 & 2 closed | |
|
|
On board I/O enabled |
J4 |
Pins 1 & 2 closed |
|
On board I/O disabled |
J4 |
Pins 2 & 3 closed | |
|
|
Password normal operation |
J7 |
Pins 2 & 3 closed |
|
Password clear |
J7 |
Pins 1 & 2 closed | |
|
|
Parallel port direction select output |
J9 |
Pins 1 & 2 closed |
|
Parallel port direction select input |
J9 |
Pins 2 & 3 closed | |
|
|
Parallel port direction select hardware for redirection |
J11 |
Pins 2 & 3 closed |
|
Parallel port direction select software hardware for redirection |
J11 |
Pins 1 & 2 closed | |
|
|
Battery type select 3.6v/4.5v |
J17 |
Pins 2 & 3 closed |
|
Battery type select 6v |
J17 |
Pins 1 & 2 closed | |
|
|
CMOS memory normal operation |
J25 pins 17 & 18 |
Closed |
|
CMOS memory clear |
J25 pins 17 & 18 |
Open | |
|
|
Fan enabled |
J29 |
Pins 2 & 3 closed |
|
Fan disabled |
J29 |
Pins 1 & 2 closed | |
|
|
12v flash BIOS enabled |
J30 |
Pins 1 & 2 closed |
|
12v flash BIOS disabled |
J30 |
Pins 2 & 3 closed | |
|
|
Local bus ready select delayed |
J31 |
Pins 1 & 2 closed |
|
Local bus ready select normal operation |
J31 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
None |
None |
None |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
None |
|
3MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
5MB |
(1) 1M x 36 |
(1) 256K x 36 |
None |
None |
|
5MB |
(1) 256K x 36 |
(1) 1M x 36 |
None |
None |
|
6MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
|
7MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
9MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
DRAM CONFIGURATION (CONT) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
13MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
None |
None |
None |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
17MB |
(1) 4M x 36 |
(1) 256K x 36 |
None |
None |
|
17MB |
(1) 256K x 36 |
(1) 4M x 36 |
None |
None |
|
18MB |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
|
19MB |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
None |
None |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
None |
None |
|
24MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
|
33MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
49MB |
(1) 256K x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
52MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
Note: The orientation of the banks is unidentified. | ||||
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
|
128KB |
(4) 32K x 8 |
None |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
|
Note: The chip sizes of the TAG and DIRTY bit are unidentified. | ||
|
CACHE JUMPER CONFIGURATION | |
|
Size |
J34 |
|
None |
Open |
|
64KB |
Open |
|
128KB |
Pins 1 & 2, 5 & 6 closed |
|
256KB |
Pins 1 & 2, 3 & 4, 7 & 8 closed |
|
CPU SPEED SELECTION | ||
|
Speed |
J5 |
J6 |
|
16MHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
20MHz |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
25MHz |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
33MHz |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
50iMHz |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
66iMHz |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
CPU TYPE SELECTION | ||
|
Type |
J32 |
J33 |
|
80486SX |
Pins 3 & 4 closed |
Pins 4 & 6 closed |
|
80487SX |
Pins 1 & 2, 5 & 6 closed |
Pins 1 & 3, 2 & 4 closed |
|
ODP486 |
Pins 1 & 2, 5 & 6 closed |
Pins 1 & 3, 2 & 4 closed |
|
80486DX |
Pins 1 & 2, 5 & 6 closed |
Pins 3 & 5, 4 & 6 closed |
|
80486DX2 |
Pins 1 & 2, 5 & 6 closed |
Pins 3 & 5, 4 & 6 closed |
|
MISCELLANEOUS TECHNICAL NOTE |
|
The location of pin 1 on all jumpers is unidentified. |