Solved

AMD 5x86 cache problem

Posted on 1997-01-20
1
377 Views
Last Modified: 2013-12-14
I'm running a dual boot Win95/NT4 system with a 5x86 chip on a generic 486 motherboard. When run at 120MHz it runs fine, but clocked at 133 or 160 the board switches the L1 cache off.  I can switch it back on in DOS but is there a way to turn it back on for NT? BTW, NT boots even at 160MHz.
0
Comment
Question by:psw01
1 Comment
 

Accepted Solution

by:
jeval earned 200 total points
ID: 1764498
I don't understand why your board is switching L1 cache off.  Even more puzzeling to me is why you want to turn L1 cache back on if the board saw fit to turn it off?  If you think that the board is in error when it turns L1 cache off, then I recommend that you go back to the manufacturer and request an updated rom bios.  If the board is behaving as designed, I would recommend that you not try to defeat it.

If you really want to do in NT what you say you can do in DOS then here is a procedure that you can try:  In regedt32 go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager and add the command line invocation of your dos program to the BootExecute value (make sure that your program is in the system path).  This will cause your dos program to execute at boot time before NT is brought up.  Make sure you take a backup of  your registry beforehand.  If your dos program prevents NT from coming up correctly you will need to restore the registry in order to get a working system back.  Alternatively, you could create an additional control set containing the above BootExec modification and then use NT's alternative control set selection facility at boot time to go back to the "last known working control set" if necessary.
0

Featured Post

Master Your Team's Linux and Cloud Stack

Come see why top tech companies like Mailchimp and Media Temple use Linux Academy to build their employee training programs.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Bootit-BM: 'Resize' action not available-grayed out 14 39
Server 2016: DNS on the server or router? Advices? 4 22
sleep laptop 20 57
Change size 15 43
Recently Microsoft released a brand new function called CONCAT. It's supposed to replace its predecessor CONCATENATE. But how does it work? And what's new? In this article, we take a closer look at all of this - we even included an exercise file for…
Today, still in the boom of Apple, PC's and products, nearly 50% of the computer users use Windows as graphical operating systems. If you are among those users who love windows, but are grappling to keep the system's hard drive optimized, then you s…
In this video, we discuss why the need for additional vertical screen space has become more important in recent years, namely, due to the transition in the marketplace of 4x3 computer screens to 16x9 and 16x10 screens (so-called widescreen format). …
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question