On Tue, 24 Jan 2006 20:42:46 -0800, you wrote:
Hi,
Actually the first is a generic Atapi cdrom
the second a Liteon CDRW. The drives are as follows:
IDE1 MASTER drive 1
IDE1 SLAVE cdrom
IDE2 MASTER cdrw
IDE2 SLAVE drive 2
I trashed the driver on C: and lost the source disk and url.
The XCDROM document clearly pointed out, try not to put CDROM drive
and hard disk into a single channel, it'll harm the performance.
I suggest you move the IDE2 SLAVE hard disk to IDE1 SLAVE and the same
for CDROM drive.
Based on my reading of the documents:
SHSUCDX /D:CDROM,,1,1 /D:CDRW,,2,1
or
DEVICE=C:\DOS\XCDROM.SYS with XDMA under certain conditions.
in the config.sys file.
The latest XCDROM v1.9 have it's own DMA logic, it WILL co-operate
with XDMA. But it also work without XDMA (suppose you got a SATA hard
disk).
The hardware is a Gigabit PII with an IBM and WD hard disks.
How do I test whether XDMA is needed.
Re-arrange the hard disk and CDROM drive, then load:
Config.sys:
lastdrive=z
device=xdma.sys /o (note: /o is overlap)
deivce=xcdrom.sys /d:shsu-cdn (I use 'shsu-cdn', my habit)
Autoexec.bat:
shcdx33a /d:shsu-cdn,y (CDROM should be drive Y,Z)
Rgds,
Johnson.
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