SCSI Controller not working in DOS, why?
Posted on 2002-06-27
My system is an AMD 1 GigHZ, 256 Meg DDR Ram, ECS K7S5A Motherboard, Geforce2 GTS Videocard, Hitachi GD-7000 DVDRom, SB Live! Soundcard, 40 Gig Internal ATA100 Maxtor 5T040H4 HDD (2 partitions = C: [3 Gig], D: [35 Gig]), 9 Gig Internal Seagate ST39216W SCSI HDD (1 partition= F: [9 Gig]) connected to an Adaptec AHA-2940UW PCI SCSI controller. The system's BIOS has been updated to the latest. The OS is Windows 98 Second Edition.
The problem I'm having is with the SCSI HDD. It works flawlessly within Win98 but when in real DOS mode the SCSI HDD is completely invisible -- I'm unable to access the drive because it isn't being detected on system bootup. This has led me to the SCSI Controller.
I've tried removing the
According to Adaptec, the Adaptec AHA-2940UW SCSI controller should "autodetect" the SCSI HDD on system bootup allowing a user to access the drive while in real DOS mode. Unfortunately there is no bootup message from the Adaptec controller or a way to access the onboard SCSISelect Utility apart of the device. It's as if the controller is "dormant", absolutely no indications that it even exists while in DOS mode. Because of this the SCSI HDD is unavailable.
Can you tell me how to "revive" the SCSI controller while in real DOS mode so that my SCSI HDD is accessible (I want to see the SCSISelect Utility bootup message)? I've tried removing the SBLive! and even moving the SCSI controller to different PCI slots but with no success.