PACKARD BELL
PB55 SERIES/F820 SERIES SX
(LEGEND 520SX)
|
Processor |
80386SX |
|
Processor Speed |
20MHz |
|
Chip Set |
TI |
|
Max. Onboard DRAM |
16MB |
|
Cache |
16/32KB |
|
BIOS |
Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Parallel port, serial ports (2), ps/2 mouse port, vga interface, floppy drive interface, IDE interface |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Keyboard |
J1 |
Speaker |
JP16 |
|
PS/2 mouse port |
J2 |
Reset switch |
JP50 pin 1 |
|
Serial port 2 |
J3 |
Turbo switch |
JP50 pin 2 |
|
Serial port 1 |
J4 |
Power ready |
JP50 pin 3 |
|
Parallel port |
J5 |
IDE LED |
JP50 pin 4 |
|
VGA interface |
J6 |
Turbo LED |
JP50 pin 5 |
|
Floppy interface |
J10 |
Ground |
JP50 pin 6 |
|
IDE interface |
J11 |
Keylock |
JP51 |
|
External battery |
JP1 |
Riser card |
S1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Factory configured - do not alter |
JP2 |
N/A | |
|
Monitor type select color |
JP3 |
Closed | |
|
Monitor type select monochrome |
JP3 |
Open | |
|
Factory configured - do not alter |
JP4 |
N/A | |
|
PS/2 mouse enabled |
JP5 |
Closed | |
|
PS/2 mouse disabled |
JP5 |
Open | |
|
800 x 600 display frequency select 60Hz V/37.8KHz H |
JP7 |
Closed | |
|
800 x 600 display frequency select 56Hz V/35.2KHz H |
JP7 |
Open | |
|
Monitor timing select multi-sync one |
JP8 |
Closed | |
|
Monitor timing select PS/2 and others |
JP8 |
Open | |
|
Video BIOS select PS/2 VGA mode |
JP9 |
Closed | |
|
Video BIOS select AT VGA mode |
JP9 |
Open | |
|
Factory configured - do not alter |
JP10 |
N/A | |
|
Factory configured - do not alter |
JP11 |
N/A | |
|
VGA interface enabled |
JP12 |
Closed | |
|
VGA interface disabled |
JP12 |
Open | |
|
CMOS memory normal operation |
JP14 |
Open | |
|
CMOS memory clear |
JP14 |
Closed | |
|
Speaker select internal |
JP15 |
pins 1 & 2 closed | |
|
Speaker select external |
JP15 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
JP18 |
N/A | |
|
Printer port type select Centronics |
JP30 |
Closed | |
|
Printer port type select PS/2 (bi-directional) |
JP30 |
Open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
NONE |
|
2.5MB |
(2) 256K x 9 |
(2) 1M x 9 |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
|
8MB |
(2) 4M x 9 |
NONE |
|
8.5MB |
(2) 256K x 9 |
(2) 4M x 9 |
|
10MB |
(2) 1M x 9 |
(2) 4M x 9 |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
16KB |
(2) 8K x 8 |
NONE |
|
32KB |
(2) 8K x 8 |
(2) 8K x 8 |
|
Note: Bank 0 is factory installed and is not configurable. | ||