Hello guys:

To begin my participation in this list, here is my question:

System:
- Pentium 166 MHz
- 64 MB RAM EDO (2 x 32MB/72pin)
- Adaptec AHA1542CF with Sony SDT4000E
- NE2000 compatible
- SB16 PnP
- HD 6.4GB Western Digital IDE
- CDROM 32X Creative
No DMA or IRQ conflicts

I used to have two 8MB/72pin memory cards in my computer for a long time
and I changed it for two 32/72pin EDO recently. I also changed my HD
from a DEC DSE2100 (2.1GB) and my CDROM unit, but I dont think it´s
related to the problem.

The problem is, before this changes the Adaptec BIOS test could run DMA
test without problems and now it locks up the system at about memory
address 90000h (right after the first 512k). I used to run Cheyenne
Backup for Windows without any problems and now I´m trying to work with
NT Backup. After some time backing up HD it stops telling the hardware
reported an error. I´m really not sure if this is related to hardware or
NT. More information: I got the BIOS test program from Adaptec (the DOS
version) and it can run without problems, i.e. the board dma pass the
test, if I boot from DOS with the BIOS disabled. I have also Linux
instaled on the same system, and after some initial tests it seems to be
ok. I´m going to do some more backup tests this weekend to ensure it
runs ok from Linux. But the BIOS test is still failling.

Any clues?

Sorry for the long message, but I wanted to give you all information
about the problem.

Best regards,
Arnaldo.
Arnaldo Cavioli Ortega
Local Support / SAP Brasil
Fone: (011)5503-2544
Fax  : (011)5505-0496