Autor: Robin Hood (skyrobin_at_box43.gnet.pl)
Data: Sun 15 Feb 1998 - 20:43:42 MET
>> po zainstalowaniu sterownikow do TX PRO
>> podskoczyl transfer Uncached Speed na 5 MB/s
>> ale za to.... Win95 nie wykrywaja CD-ROMu zainstalowanego
>> w komputerze (a plyta, przy starcie, wykrywa).
Problems with the Bus Master DMA Drivers under Windows 95
The most common problem with these drivers I came across so far are with an
ATAPI CD-Rom drive or a NON EIDE HDD, which also is connected to the EIDE
interface and isn't recognized by the driver. In other words: You install
the driver and your CD-Rom and older harddrive have disappeared.
We also have all come across the delayed Windows 95 boot up problem, which
seems to annoy a lot of impatient people. If you have a look into the System
Manager you'll find a not working second IDE port in case you haven't
connected anything to it. The solution to this problem is the same.
One very good answer to this problem is to get the DMA driver working on
one EIDE port and the default PIO driver on the other (to connect the CD-Rom
or old hard drives or to get rid of this non functioning second IDE port).
After installing the Bus Master Driver you simply have to change the
registry (always back up registry before changing it !!!!!):
ďˇ find
HKEY_LOCAL_MACHINE/System/CurrentControlSet/control/Services/Class/hdc
ďˇ there should be four subdirectories 0000-0003
ďˇ find the one where DriverDesc is something like "Primary Bus Master IDE
controller" or "Secondary Bus Master IDE controller", according to the port
you want to change (should be 0002 or 0003).
ďˇ in this subdirectory you change PortDriver from "ideatapi.mpd" to
"ESDI_506.pdr"
ďˇ if you want to, you can change DriverDesc to something like "Standard
IDE/ESDI controller", to make it look more correctly in your Systems Manager
ďˇ reboot
Now this EIDE port is using the default PIO driver and you easily can use
CD-Roms or non EIDE hard drives on this port.
A different solution to this problem seems to be keeping the data wires to
the HDDs/CD-Roms as short as possible, which does the trick Mount the drives
properly, they should be grounded !
Another trick that may shorten the startup time, is to start Windows95 in
safe mode and delete all drives in System-Manager. Don't worry, with the
next start up of Windows95 they will be recognized again.
Here a new suggestion from Gerwin de Wit. He has two HDDs, both of which
are connected to his primary IDE port and an ATAPI CDRom on the second port
configured as SLAVE - so there's only a slave drive running at his second
IDE port! This obviously works just fine with the Bus Master IDE Driver -
when the CD-ROM was configured as a Master, it would not work. His CDRom is
a Teac CD-56E. I just wonder what happens if you add a new 3rd HDD and
configure it as 2nd Master...
To archiwum zostało wygenerowane przez hypermail 2.1.7 : Tue 18 May 2004 - 17:00:30 MET DST