I am trying to installing Win-NT 4.0 on a fully SCSI system: MSI-649D-Pro, double Pentium III 800Mhz, 256Mb, Tekram DC-390U3W and a Quantum Atlas V 9.1 Gb. And you what? The first part of the installation goes fine, but after the reboot I get the error: INACCESSIBLE_BOOT_DEVICE, Stop: 0x07B. I have searched numerous sites. But until now haven't found a solution. Can anybody help?

First off, my sympathies go out to you. I fought that with my compaq prosignia 500 for about 4 weeks... Here is how I was able to do it. Now this is going to sound like a real drag.. I got my hands on a good boot disk (DOS 6.x or later should work). I had to FDISK both of my hard drives, recreating all the partitions. I wasn't able to get it to install NT onto an NTFS partition... Everytime I would I'd get that same darn error. After many hours of talking with "professionals" I decided to try and format my first two partions (C is 300 megs and D is 700 some megs, both FAT16). I installed NT onto D and after the install I formatted the remaining disk space NTFS. I tried then running convert.exe and after the NTFS partition conversion I would get the INACCESSIBLE_BOOT_DEVICE error. I have yet to find an explaintion as to why this is the case but at least I have the system running again. Not exactly an ideal situation I know but it should work. Good luck and feel free to email me Dave

I'm used to that being a nic driver problem. try installing it with the MS Loopback driver.

Thanks guys. At least for your quick response. My other system has a double boot with the first partition dos... I have to check but I think this one has a non NTFS as it's primary boot partition. I will check this out. Maybe we are stuck to this... On the Microsoft site I found this: Microsoft has confirmed this to be a problem in Windows NT and Windows NT Advanced Server version 3.1. This problem is corrected in the most recent U.S. Service Pack for Windows NT and Windows NT Advanced Server. My CD with NT 4.0 Workstation Servicepack 1 is a little bit old... Maybe they have fixed the problem in a later release... Then again, maybe not, I see a lot of references to this problem concerning Windows 2000... BTW. I have no idea whatsoever what a NIC driver might be, also what a MS Loopback driver is... I am only a DBA...

I may have found my solution... Perhaps this will work for more people, experiencing the same problem. I have checked the www.lsilogic.com site. This gave me the following: Some incompatibilities are known when using Windows NT 4 and dual channel SCSI controllers. If you are using a multifunction PCI device, such as an LSI Logic 53C1010 or 53C896 dual channel SCSI chip and certain PCI or AGP video controllers, the Windows NT installation may fail. They also refer to a Microsoft document Q148501...

This indeed solved my problem. It has to do with updating the hal... I just now have to download SP 6a. --- Problem solved ---