on Mon, 12 Apr 1999 19:55:34 -0400 you wrote:
>I hear that you cannot use Win95 on a processor over 350 mhz.
Jerry, this isn't quite the case. The problem is WIN95 and AMD K6-2 CPU's = or >
350 MHz. Usually upon booting you get a Windows I/O error directly after the
"Windows 98 is loading" message. I've had this happen on two 400 MHz machines.
Microsofts solution to the problem was "Install WIN98". AMD was offering a fix
for $, but I think you can get it for free now. Below I've included the original
KB article taken from the PCBUILD archive (LOG9811) There you can find a bit
more discussion about the same problem.
SYMPTOMS
========
When you start your Windows 95 OEM Service Release-based
computer that is using an AMD-K6-2 processor that runs at speeds
of 350 MHz and higher, you may receive one of the following error
messages:
- Device IOS failed to initialize. Windows Protection Error.
You must reboot your computer.
- Windows Protection Error. You must reboot your computer.
Note: This problem is very intermittent at 350MHz, but occurs
more often at higher speeds.
CAUSE
=====
The first error is a result of a divide exception in Ios.vxd, the
second is due to a similar error within Esdi_506.pdr or Scsiport.pdr.
The files listed in the RESOLUTION section of this article
contain initialization timing loops that fail to execute properly on
the AMD-K6-2 processor at speeds of 350MHz and above. Note that this
problem is due to limitations of the software algorithms, and is not
indicative of a problem with the processor itself, which is
functioning properly.
RESOLUTION
==========
A supported fix that corrects this problem is now available
from Microsoft, but has not been fully regression tested and should
be applied only to computers experiencing this specific problem. If
you are not severely affected by this specific problem, Microsoft
recommends that you use the next release of Windows.
To resolve this problem immediately, contact Microsoft
Product Support Services to obtain the fix. For a complete list of
Microsoft Product Support Services phone numbers and information on
support costs, please go to the following address on the World Wide
Web:
http://support.microsoft.com/support/supportnet/default.asp
NOTE: This issue is resolved in Microsoft Windows 98.
The English version of this fix should have the following file
attributes or later:
Date Time Version Size File name
---------------------------------------------------------
09/04/98 11:18am 4.00.1118 24,426 bytes Esdi_506.pdr
08/03/98 11:13am 4.00.1113 25,249 bytes Hsflop.pdr
09/04/98 11:12am 4.00.1112 23,158 bytes Scsiport.pdr
01/15/97 11:12am 4.00.1112 59,153 bytes Cdfs.vxd
01/15/97 11:12am 4.00.1112 18,809 bytes Disktsd.vxd
01/15/97 11:12am 4.00.1112 9,955 bytes Int13.vxd
09/04/98 11:13am 4.00.1113 68,962 bytes Ios.vxd
01/15/97 11:12am 4.00.1112 18,197 bytes Vfbackup.vxd
In addition, the following updated file is needed for OSR2.1:
Date Time Version Size File name
--------------------------------------------------------
09/10/98 11:12am 4.00.1112 111,678 bytes Ntkern.vxd
NOTE: If you contact Microsoft to obtain this fix, a fee may be
charged. This fee is refundable if it is determined that you only
require the fix you requested. However, this fee is non-refundable
if you request additional technical support, if your no-charge
technical support period has expired, or if you are not eligible
for standard no-charge technical support.
STATUS
======
Microsoft has confirmed this to be a problem in Microsoft
Windows 95 and OEM Service Releases 2, 2.1, and 2.5.
HTH Rick
----
Rick Swartz ([log in to unmask])
http://www.swartz-clan.com
ICQ 27239464
PCBUILD's List Owner's:
Bob Wright<[log in to unmask]>
Drew Dunn<[log in to unmask]>
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