Selecting The Ecp Dma Channel; Clearing The Cmos - AOpen AP53 User Manual

Hardware Installation

2.7.3 Selecting the ECP DMA Channel

The available ECP DMA channel
selections are DRQ3/DACK3 and
DRQ1/DACK1. The default is
DRQ3/DACK3. To select
DRQ1/DACK1, reset jumpers JP6 and
JP7 to 2-3.

2.7.4 Clearing the CMOS

You need to clear the CMOS if you
forget your system password. To do
this, shut off the system power and short
pins 2-3 of JP5 for a few seconds. Reset
the jumper to normal setting by shorting
pins 1-2. Enter Setup to specify a new
password.
2-12
The onboard I/O controller may either be SMC
665 or SMC 669. If you have SMC 669, JP6
and JP7 must be set to open.
JP6
DRQ3/DACK3
(default)
DRQ1/DACK1
Normal
(default)
Clear CMOS
JP7
JP5