NEC TECHNOLOGIES, INC.
READY 425, 433, & 466
|
Processor |
80486SX/80487DX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal) MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
64MB |
|
Cache |
None |
|
BIOS |
NEC |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Fax/modem, floppy drive interface, IDE interface, multi-function connector (PS/2 mouse, PS/2 keyboard, power LED), parallel port, proprietary riser card, serial port, VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Floppy drive interface |
J1 |
External battery |
JP9 |
|
IDE interface |
J2 |
Speaker |
JP11 |
|
Main board power connector |
J7 & J8 |
Multi-function connector |
P1 |
|
RJ11 modem interface |
J10 & J11 |
Parallel port |
P2 |
|
Proprietary riser card connection |
JA-1 |
Serial port |
P3 |
|
IDE interface LED |
JP6 |
VGA port |
P4 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
| » |
Parallel port (P2) select LPT1/IRQ7 (378-37Fh) |
JP13 |
pins 1 & 2 closed |
|
Parallel port (P2) select LPT2/IRQ5 (278-27Fh) |
JP13 |
pins 2 & 3 closed | |
| » |
Flash BIOS programable via network disabled |
JP14 |
pins 1 & 2 closed |
|
Flash BIOS programable via network enabled |
JP14 |
pins 2 & 3 closed | |
| » |
Onboard video enabled |
SW1/1 |
Off |
|
Onboard video disabled |
SW1/1 |
On | |
| » |
Floppy interface (J1) enabled |
SW1/2 |
Off |
|
Floppy interface (J1) disabled |
SW1/2 |
On | |
| » |
System password enabled |
SW1/3 |
Off |
|
System password disabled & cleared |
SW1/3 |
On | |
| » |
Flash BIOS write enabled |
SW1/4 |
Off |
|
Flash BIOS write disabled |
SW1/4 |
On | |
|
CPU TYPE CONFIGURATION | ||||
|
Type |
JP1 |
JP2 |
JP12 | |
| » |
80486SX PQFP |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80486SX PGA |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
80487SX PGA |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed | |
|
80486DX PGA |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
80486DX2 PGA |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
CPU SPEED CONFIGURATION | |
|
Clock Speed |
JP15 |
|
25/50i MHz |
pins 1 & 2 closed |
|
33/66i MHz |
pins 2 & 3 closed |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
5MB |
(1) 1M x 36 |
(1) 256K 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) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
10MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
13MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
NONE |
NONE |
NONE |
|
17MB |
(1) 4M x 36 |
(1) 256K 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 |
|
21MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
22MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
24MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
25MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
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) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
NONE |
|
34MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
36MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
37MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
40MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
49MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
|
52MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |