"Andrew McLaren" wrote:
> "Daniel- Sydney" <> wrote ...
> > I had some problems with my RAM and was getting errors with Memtest run in
> > DOS,
> > I cleaned up the insides of my PC, reseated the RAM sticks and improved
> > the
> > airflow around the CPU and inside the tower generally.
> > Now I get no errors after 12 hours of running Memtest and Memscope in DOS
> > but when I run Memtest for windows I get errors immediatley.
> > The error message is "Vista is not able to store data correctly in memory"
> > Is this a Vista problem, since I do not get errors in DOS?
>
> Hi Daniel,
>
> Just on teh face of it, I'd suspect the chain of causality is the other way
> around - Memscope running on DOS is failing to identify problems, which are
> correctly located by Memtest on Windows.
>
> But that's just a guess. I doubt there's any major Vista defect that you are
> detecting here; but perhaps these 3rd part tools are having problems running
> in the Vsta environment. To date, there haven't been any major bugs reported
> in Vista memory management. On the contrary, memory management in Vista is a
> sohphisticated evolution of the tried-and-true memory mechanisms used in
> Windows NT, Windows 2000, XP, and Server 2003. Besides - tools like memtest
> are looking for hardware problems so, they shouldn't be so affected by the
> underlying OS (you'd think) But Vista introduces new features like Address
> Space Layout Randomisation (ASLR), as security and performance enhancements.
> ASLR is just an example, there are many other changes as well. A low-level
> utility which makes assumptions about memory layout could easily find it has
> compatibility problems running on Vista.
>
> If you want to verify your memory hardware, you don't need to run 3rd party
> utilities on Vista. You can run the Windows Memory Diagnostic Tool, built-in
> to Windows Vista. To run the Windows Memory Diagnostic Tool:
>
> 1. Click Start, click All Programs, and then expand Accessories.
>
> 2. Right-click Command Prompt and select Run elevated from the context
> menu.
>
> 3. At the command prompt, type mdsched.exe. If you are prompted, allow the
> action. You can choose to restart the computer and run the tool immediately
> or schedule the tool to run at the next restart.
>
> 4. Windows Memory Diagnostic runs automatically after the computer restart.
> Windows Memory Diagnostic allows you to choose among three test suites of
> varying thoroughness.
>
> If you hit F1 and select "Extended" in the memory test menu, this will give
> your machine an extremely thorough test. You can optionally select to run up
> to 99 iterations (which would probably take a couple of hours to run, on a
> typical machine)
>
> Hope it helps,
> --
> Andrew McLaren
> amclar (at) optusnet dot com dot au
>
>
Andrew
thanks for the reply, the reason I am looking into the RAM is that I get
very poor Graphics performance with older games with Vista compared to XP.
These games, such as Microsoft Train Simulator are mopre RAM and less
Graphics card dependent.
I will give the Windows Memory Diagnostic Tool a go tonight when I get home.
regards
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