PACKARD BELL
PB410 & PB420/420T (REVISION C)
|
Processor |
80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
|
Processor Speed |
20/25/33/40/50(internal)/66(internal)MHz |
|
Chip Set |
ACC |
|
Max. onboard DRAM |
36MB |
|
SRAM Cache |
32/128/512KB |
|
BIOS |
Phoenix |
|
Dimensions |
330mm x 240mm |
|
I/O Options |
Fax/modem daughterboard, floppy drive interface, game port, IDE interface, multi-function connector (IDE interface LED, reset, keylock, turbo switch, turbo-LED, non-turbo LED), parallel port, PS/2 keyboard port, PS/2 mouse port, serial port, VGA port, video feature connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
PS/2 keyboard |
J1 |
Floppy drive interface |
J19 |
|
PS/2 mouse |
J2 |
Propriatary fax/modem daughterboard |
J21 |
|
VGA port |
J3 |
External battery |
J28 |
|
Game port |
J4 |
External fan power (+12V DC) |
J35 |
|
Parallel port |
J5 |
Multi-function connector |
J36 |
|
Serial port |
J6 |
Keylock |
J37 |
|
Video feature connector |
J10 |
Speaker |
J38 |
|
Audio interface connector (unused) |
J14 |
Riser card |
S1 |
|
IDE interface |
J18 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
Onboard Game port enabled |
J15 |
Closed | |
|
Onboard Game port disabled |
J15 |
Open | |
|
PS/2 mouse port enabled (IRQ12) |
J27 |
Closed | |
|
PS/2 mouse port disabled |
J27 |
Open | |
|
Monitor type select color |
J12 |
Closed | |
|
Monitor type select monochrome |
J12 |
Open | |
|
Onboard I/O ports enabled |
J16 |
Closed | |
|
Onboard I/O ports disabled |
J16 |
Open | |
|
Hard drive boot from DOS boot block |
J17 |
pins 2 & 3 closed | |
|
Hard drive boot from custom boot block |
J17 |
pins 1 & 2 closed | |
|
Flash BIOS write protect enabled |
J20 |
Open | |
|
Flash BIOS write protect disabled |
J20 |
Closed | |
|
Onboard battery enabled |
J24 |
Closed | |
|
Onboard battery disabled |
J24 |
Open | |
|
Speaker select internal |
J39 |
pins 1 & 2 closed | |
|
Speaker select external |
J39 |
pins 2 & 3 closed | |
|
Note:Parallel port, serial port, floppy drive interface, and IDE interface are configured through the BIOS setup options. J20 is only a trace, and has not been implimented in any production models of the board. | |||
|
DRAM CONFIGURATION (NO MEMORY SOLDERED TO BOARD) | |
|
Size |
Bank 0 |
|
2MB |
(1) 512K x 36 |
|
4MB |
(1) 1M x 36 |
|
8MB |
(1) 2M x 36 |
|
16MB |
(1) 4M x 36 |
|
32MB |
(1) 8M x 36 |
|
DRAM CONFIGURATION (4MB OF MEMORY SOLDERED TO BOARD) | |||
|
Size |
Bank 0 |
Parity 0 (P0) |
Bank 1 |
|
4MB |
(8) 441000 |
(1) 441000 |
NONE |
|
6MB |
(8) 441000 |
(1) 441000 |
(1) 512K x 36 |
|
8MB |
(8) 441000 |
(1) 441000 |
(1) 1M x 36 |
|
12MB |
(8) 441000 |
(1) 441000 |
(1) 2M x 36 |
|
20MB |
(8) 441000 |
(1) 441000 |
(1) 4M x 36 |
|
36MB |
(8) 441000 |
(1) 441000 |
(1) 8M x 36 |
|
Note:Bank 0 & parity 0 are soldered to the board. | |||
|
ONBOARD VIDEO CONFIGURATION | ||||
|
Onboard Video |
IRQ |
J11 |
J22 | |
|
Enabled |
IRQ9 |
pins 2 & 3 closed |
Closed | |
|
Enabled |
None |
pins 2 & 3 closed |
Open | |
|
Disabled |
N/A |
pins 1 & 2 closed |
N/A | |
|
VRAM CONFIGURATION | |||
|
Size |
Bank 0 (U23) |
Bank 1 (U20) |
Bank 1 (U22) |
|
512KB |
(1) 256K x 16 DIP |
NONE |
NONE |
|
1MB factory installed |
(1) 256K x 16 DIP |
NONE |
(1) 256K x 16 DIP |
|
1MB user installed |
(1) 256K x 16 DIP |
(1) 256K x 16 ZIP |
NONE |
|
Note:If board is factory installed with 1MB of VRAM, a second 256K x 16 DIP will soldered on the board at U22. If board is factory configured with 512KB of VRAM, U22 will only be a trace, and a 40-pin ZIP socket will be installed at location U20. If the ZIP socket is present, there will also be traces for 2 additional zip sockets at U14 and U16. Sockets installed on ZIP socket traces will not function. | |||
|
PARALLEL PORT IRQ CONFIGURATION | ||
|
IRQ |
J13 | |
|
IRQ7 |
pins 1 & 2 closed | |
|
IRQ5 |
pins 2 & 3 closed | |
|
CPU TYPE CONFIGURATION | |||
|
CPU |
J29 |
J34 |
J40 |
|
80486SX |
Closed |
pins 5 & 6 closed |
pins 3 & 4 closed |
|
80487SX |
Closed |
pins 3 & 4 closed |
pins 1 & 2, 5 & 6 closed |
|
80486DX |
Closed |
pins 1 & 2, 5 & 6 closed |
pins 1 & 2, 5 & 6 closed |
|
ODPR486SX-25MHz |
Open |
pins 1 & 2, 5 & 6 closed |
pins 1 & 2, 5 & 6 closed |
|
ODP486SX-33MHz |
Open |
pins 3 & 4 closed |
pins 1 & 2, 5 & 6 closed |
|
80486DX2 |
Open |
pins 1 & 2, 5 & 6 closed |
pins 1 & 2, 5 & 6 closed |
|
CPU SPEED CONFIGURATION | |||
|
Speed |
J23 |
J25 |
J26 |
|
20MHz |
Closed |
Open |
Open |
|
25/50i MHz |
Open |
Closed |
Closed |
|
33/66i MHz |
Open |
Closed |
Open |
|
40MHz |
Open |
Open |
Closed |
|
CACHE CONFIGURATION | |||
|
Size |
Cache |
TAG | |
|
32KB |
(4) 8K x 8 |
(1) 8K x 8 | |
|
128KB |
(4) 32K x 8 |
(1) 32K x 8 | |
|
512KB |
(4) 128K x 8 |
(1) 128K x 8 | |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
J30 |
J31 |
J32 |
J33 | |
|
32KB |
Open |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed | |
|
128KB |
Closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
512KB |
Closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed | |