ACER, INC.
L50
|
| |
|
Data bus: |
32-bit VL-bus |
|
Size: |
Three-quarter length, full-height card |
|
Hard drive supported: |
Four IDE(AT) drives |
|
Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB drives |
|
CONNECTIONS | |
|
Function |
Location |
|
40-pin primary IDE(AT) connector |
CN1 |
|
40-pin secondary IDE(AT) connector |
CN2 |
|
34-pin cable connector - floppy drive |
CN3 |
|
10-pin serial port 1 |
CN4 |
|
10-pin serial port 2 |
CN5 |
|
16-pin game port |
CN6 |
|
15-pin video port |
CN7 |
|
25-pin parallel port |
CN8 |
|
VESA feature connector |
CN9 |
|
4-pin connector - drive active LED |
JP28 |
|
VGA CONFIGURATION | |||
|
Mode |
JP4 |
JP5 | |
| » |
Enabled |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
| » |
IRQ9 disabled |
JP3/pins 1 & 2 |
closed |
|
IRQ9 enabled |
JP3/pins 2 & 3 |
closed | |
| » |
Primary IDE(AT) interface enabled |
JP6/pins 1 & 2 |
closed |
|
Primary IDE(AT) interface disabled |
JP6/pins 2 & 3 |
closed | |
| » |
Floppy drive interface enabled |
JP11/pins 1 & 2 |
closed |
|
Floppy drive interface disabled |
JP11/pins 2 & 3 |
closed | |
| » |
Ignores cable select configuration for floppy drives |
JP12/pins 1 & 2 |
closed |
|
Checks for cable select configuration |
JP12/pins 2 & 3 |
closed | |
| » |
Game port enabled |
JP13/pins 1 & 2 |
closed |
|
Game port disabled |
JP13/pins 2 & 3 |
closed | |
| » |
Parallel port IRQ 7 select |
JP18/pins 1 & 2 |
closed |
|
Parallel port IRQ 5 select |
JP18/pins 2 & 3 |
closed | |
|
PARALLEL PORT ADDRESS SELECTION | |||
|
LPT |
JP14 |
JP15 | |
| » |
LPT1 (378h) |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
LPT2 (278h) |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
LPT3 (3BCh) |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
Disabled |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
SERIAL PORT 1 ADDRESS SELECTION | |||
|
COM |
JP21 |
JP22 | |
| » |
COM1 (3F8h) |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
COM2 (2F8h) |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
COM3 (3E8h) |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
SERIAL PORT 2 ADDRESS SELECTION | |||
|
COM |
JP23 |
JP24 | |
| » |
COM2 (2F8h) |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
COM1 (3F8h) |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
COM4 (2E8h) |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
SERIAL PORT 1 INTERRUPT SELECTION | ||||
|
IRQ |
JP25/Pins 1 & 2 |
JP26/Pins 1 & 2 |
JP27/Pins 1 & 2 | |
| » |
IRQ4 |
closed |
open |
open |
|
IRQ3 |
open |
closed |
open | |
|
IRQ5 |
open |
open |
closed | |
|
SERIAL PORT 2 INTERRUPT SELECTION | ||||
|
IRQ |
JP25/Pins 2 & 3 |
JP26/Pins 2 & 3 |
JP27/Pins 2 & 3 | |
| » |
IRQ3 |
open |
closed |
open |
|
IRQ4 |
closed |
open |
open | |
|
IRQ5 |
open |
open |
closed | |
|
PARALLEL PORT MODE CONFIGURATION | |||
|
Mode |
JP16 |
JP17 | |
| » |
SPP |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
EPP |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
ECP |
pins 2 & 3 closed |
pins 1 & 2 closed | |
|
DMA SELECTION FOR ECP MODE | |||
|
Channel |
JP19 |
JP20 | |
| » |
DMA 3 |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
DMA 1 |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
MEMORY ADDRESSING | |||
|
Linear Address |
JP1 |
JP2 | |
| » |
64MB |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
2GB |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
SECONDARY IDE ADDRESS SELECTION | |||
|
Address |
JP7 |
JP8 | |
| » |
Secondary |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Primary |
pins 1 & 2 closed |
pins 2 & 3 closed | |
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
SECONDARY IDE INTERRUPT SELECTION | |||
|
IRQ |
JP9 |
JP10 | |
| » |
15 |
pins 1 & 2 closed |
pins 1, 2 & 3 open |
|
10 |
pins 1, 2 & 3 open |
pins 1 & 2 closed | |
|
12 |
pins 1, 2 & 3 open |
pins 2 & 3 closed | |
|
14 |
pins 2 & 3 closed |
pins 1, 2 & 3 open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(8) 256K x 4 |
None |
|
2MB |
(8) 256K x 4 |
(2) 256K x 16 |