Installation guide
B-1
B
Troubleshooting
This Appendix provides answers to many frequently asked 
questions. If a situation occurs that is not covered in this appendix, 
or if these recommendations do not correct the problem, contact 
Adaptec Technical Support.
When the controller BIOS displays the hard disk drives during startup, a device fails to 
appear.
The power cable or the interface cable may be loose or disconnected. 
There might also be a SCSI ID conflict.
Windows NT displays a blue screen error message that references the system video 
controller.
The video controller fails to properly implement Extended BIOS 
Data Area (EBDA) usage rules. Use SMOR to enable the EBDA 
Relocation option.
In addition to the Adaptec controller, the system contains another manufacturer’s 
controller. During startup, the system hangs or one controller cannot communicate 
with its attached drives.
Perhaps the other controller does not correctly implement EBDA 
usage rules. Use SMOR to try a different setting for the EBDA 
relocation parameter or rearrange the controller slot assignments. 
Alternatively, if your system BIOS supports configuring the boot 
order, you can also try changing those settings.
Pressing Ctrl+A to access SMOR does not work or the information displayed is 
garbled.
Reset the NVRAM to the default settings and reconfigure the ZCR. 
To reset the NVRAM, refer to Appendix C.
R2N2 RAID IG.BOOK Page 1 Monday, September 9, 2002 12:01 PM










