Terrible floppy problems

Terrible floppy problems

Post by Robert Monic » Thu, 13 Jul 1995 04:00:00



This one is driving me crazy.  I happen to have three systems at my house now:
1.  Borrowed 386DX40 vintage 1992  running DOS 6.2
2.  One 486SX25, clone MB & HW,  newer MB running DOS 6.22.
3.  One COMTRADE P5 90 with IDE running DOS 6.22.

I am not correctly accessing floppy drives.  Frequently, I get read errors
and the floppy loses its format/data (blowing away the FAT?).

I get these errors on the 486 (my test box) and the Pentium.  The 386 is fine.

One symptom is, when formating a floppy, everything is normal until the end
then I get:

Unable to write Boot.
Format failed

The 386 works fine.  Took the controller and floppy from the 486 to the
386, works fine.  Created a system disk on the 386, took everything back to
the 486, rebooted from floppy, reformated the HDD with this system (DOS 6.2),
booted from HDD, same problem.

The 586 has an AMI BIOS, the 486 an Award.

Are there such things as ROM BIOS viruses which would cause symptoms like this?
The 486 and 586 could have easily infected one another with such a virus,
as I have exchanged HDDs between the two.  I built both systems up with
that same set of DOS and WFW disks. If I am infected, I have no idea how it
might have come in.   The 386 is safe.

Any help is greatly appreciatedx.
--
-- rob:  i e-mail, therefore i am

-- v: 719-528-3777 f: 719-528-3848

 
 
 

Terrible floppy problems

Post by Jim Glass ; JF ; GLASS ; x586-0375 ; » Thu, 13 Jul 1995 04:00:00


|>
|> This one is driving me crazy.  I happen to have three systems at my house now:
|> 1.  Borrowed 386DX40 vintage 1992  running DOS 6.2
|> 2.  One 486SX25, clone MB & HW,  newer MB running DOS 6.22.
|> 3.  One COMTRADE P5 90 with IDE running DOS 6.22.
|>
|> I am not correctly accessing floppy drives.  Frequently, I get read errors
|> and the floppy loses its format/data (blowing away the FAT?).
|>
|> I get these errors on the 486 (my test box) and the Pentium.  The 386 is fine.
|>
|> One symptom is, when formating a floppy, everything is normal until the end
|> then I get:
|>
|> Unable to write Boot.
|> Format failed
|>
|> The 386 works fine.  Took the controller and floppy from the 486 to the
|> 386, works fine.  Created a system disk on the 386, took everything back to
|> the 486, rebooted from floppy, reformated the HDD with this system (DOS 6.2),
|> booted from HDD, same problem.
|>
|> The 586 has an AMI BIOS, the 486 an Award.
|>
|> Are there such things as ROM BIOS viruses which would cause symptoms like this?
|> The 486 and 586 could have easily infected one another with such a virus,
|> as I have exchanged HDDs between the two.  I built both systems up with
|> that same set of DOS and WFW disks. If I am infected, I have no idea how it
|> might have come in.   The 386 is safe.
|>
|> Any help is greatly appreciatedx.
|> --
|> -- rob:  i e-mail, therefore i am

|> -- v: 719-528-3777 f: 719-528-3848

A virus is a distinct possibility; at lease one which you should test for and
eliminate.

Get McAfee's VIRUSScan, latest version.

Jim Glass

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Terrible floppy problems

Post by Bill Niedfel » Fri, 14 Jul 1995 04:00:00


|>
|> This one is driving me crazy.  I happen to have three systems at my house now:
|> 1.  Borrowed 386DX40 vintage 1992  running DOS 6.2
|> 2.  One 486SX25, clone MB & HW,  newer MB running DOS 6.22.
|> 3.  One COMTRADE P5 90 with IDE running DOS 6.22.
|>
|> I am not correctly accessing floppy drives.  Frequently, I get read errors
|> and the floppy loses its format/data (blowing away the FAT?).
|>
|> I get these errors on the 486 (my test box) and the Pentium.  The 386 is fine.
|>
|> One symptom is, when formating a floppy, everything is normal until the end
|> then I get:
|>
|> Unable to write Boot.
|> Format failed
|>
|> The 386 works fine.  Took the controller and floppy from the 486 to the
|> 386, works fine.  Created a system disk on the 386, took everything back to
|> the 486, rebooted from floppy, reformated the HDD with this system (DOS 6.2),
|> booted from HDD, same problem.
|>
|> The 586 has an AMI BIOS, the 486 an Award.
|>
|> Are there such things as ROM BIOS viruses which would cause symptoms like this?
|> The 486 and 586 could have easily infected one another with such a virus,
|> as I have exchanged HDDs between the two.  I built both systems up with
|> that same set of DOS and WFW disks. If I am infected, I have no idea how it
|> might have come in.   The 386 is safe.
|>
|> Any help is greatly appreciatedx.
|> --
|> -- rob:  i e-mail, therefore i am

|> -- v: 719-528-3777 f: 719-528-3848

You might want to check the slot you are plugging the disk controller into.
I have heard of one system that the 2 center slots are the VESA only slots,
caused a problem for the guy until he plugged into the same # slot on both
MDs.

Bill N.