NEC TECHNOLOGIES, INC.
IMAGE 425/433/466
|
Processor |
80486SX/80487DX/80486DX/ODP486SX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
64MB |
|
Cache |
256KB expandable |
|
BIOS |
Intel |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
Cache expansion slot, floppy drive interface, IDE interface, multifunction connector (PS/2 mouse, PS/2 keyboard, power LED), parallel port, proprietary ethernet slot SCSI interface, serial port (2, 1 optional), VGA port, VGA feature connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
IDE interface |
J7 |
Cache expansion slot |
J18 |
|
Floppy drive interface |
J8 |
Speaker (not used) |
JP1 |
|
VGA feature connector |
J9 |
Reset switch |
JP3 |
|
Optional disk power supply |
J12 |
Serial port 1 |
P1 |
|
External battery |
J13 |
Serial port 2 (optional) |
P2 |
|
IDE interface LED (not used) |
J14 |
VGA port |
P3 |
|
Proprietary Ethernet slot |
J15 |
Parallel port |
P4 |
|
Proprietary riser card slot |
J16 |
Multifunction connector |
P5 |
|
SCSI interface |
J17 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
| » |
Factory configured do not alter |
JP2 |
Open |
| » |
ROM emulation enabled |
JP4 |
Open |
|
ROM emulation disabled |
JP4 |
Closed | |
| » |
Onboard video enabled |
SW1/switch 1 |
Off |
|
Onboard video disabled |
SW1/switch 1 |
On | |
| » |
Floppy interface enabled |
SW1/switch 2 |
Off |
|
Floppy interface disabled |
SW1/switch 2 |
On | |
| » |
System password enabled |
SW1/switch 3 |
Off |
|
System password disabled |
SW1/switch 3 |
On | |
| » |
Flash BIOS write protect enabled |
SW1/switch 4 |
Off |
|
Flash BIOS write protect disabled |
SW1/switch 4 |
On | |
| » |
BIOS programming via network enabled |
SW1/switch 5 |
Off |
|
BIOS programming via network disabled |
SW1/switch 5 |
On | |
| » |
CPU speed select 25/50iMHz |
SW1/switch 6 |
On |
|
CPU speed select 33/66iMHz |
SW1/switch 6 |
Off | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
5M |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
6M |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
|
7M |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
8M |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
9M |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
10M |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
12M |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
13M |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
16M |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16M |
(1) 4M x 36 |
NONE |
NONE |
NONE |
|
17M |
(1) 4M x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
18M |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
|
19M |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
20M |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
21M |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
NONE |
|
22M |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
24M |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
25M |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
28M |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32M |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
33M |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
NONE |
|
36M |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
37M |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
40M |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
48M |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
49M |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
|
52M |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
64M |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |