The one time I saw exactly this is when DMA was enabled on the hard drive in
question.  Disabling it fixed the problem.  To find out whether you have DMA
enabled, go to Control Panel, System, Device Manager. Click the + next to Disk
Drives, then double-click the disk drive whose settings you which to check (you
might as well check all of them).  In the resulting window, click the
"Settings" tab, and look for the DMA box.  If there is a check mark there,
clear it.

If DMA is not enabled on any of the hard drives, then could you tell us
precisely which hard disk controllers are being used? Again, in Device Manager,
click the + next to Hard Disk Controllers.  What is listed there? Do any of the
entries have an exclamation mark?

Roxanne Pierce
R2 Systems, San Diego
mailto:[log in to unmask]

On Monday, March 09, 1998 19:14, Iz Kuzara [SMTP:[log in to unmask]]
wrote:
> SYSTEM:
>
> PII 233MHZ
> operating Win95B
> EPoX EP-61LXA-M motherboard
> SBW32 Soundcard
> HP Scanjet 3c
> Matrox Millenium II
> 3.2 Western Digital HDD on Primary Controller (as Master)
> with 2.5 Quantum Siriocco HDD (as Slave)
> 5.1 Maxtor HDD on Secondary Controller (as Master)
> with HP CD-RW 7100i (internal, as Slave)
>
> Somehow, I was able to trace my I/O 378 original problem through a
> secondary parallel port card I had installed in one of the ISA bus which
> I wanted to use for my Zip Drive. I removed the problematic port and the
> error disappeared. But I still have the same secondary error later on as
> the computer continued on booting which says:
>
> One or more of your hard disk drives may have a bad sector. Press any
> key to start ScanDisk.
>
> I wasn't given another choice in the matter, so I press any key and it
> automatically run ScanDisk. (If Norton 3 is running, it would have gone
> to the equivalent version of Norton's but I had since deleted the
> program from this computer for the moment). During the first few times,
> I let it run ScanDisk. It never finds any problems with my HDDs at all.
> I soon tire of running ScanDisk and just exit the program everytime.
> (Once in a while if I am busy with other things I let it run its
> course.) So I cannot say I did not give it a chance, eh?
>
> Anyoldwho, when it goes to Win95, it will blink on me with the error/s :
>
> DISK WRITE ERROR:
>
> Unable to write to Drive C:
> Data or Files maybe lost.
>
> Press any key to continue.