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Ensuring full L2 cache use?

post #1 of 10
12/14/04 at 11:02pm
Thread Starter 
Hi, all. Awhile back I read a post of a registry edit which makes sure the computer recognizes the full size of the L2 cache on Pentium M chips. I can't find it. Does anyone know what I'm talking about?

Thanks,

P
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post #2 of 10
12/15/04 at 3:31am
have a look here http://notebookforums.com/showthread.php?t=40491
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post #3 of 10
12/15/04 at 4:32am
Also note that with the Dothan chips you use the hex value of 800.
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post #4 of 10
12/15/04 at 11:27am
I read somewhere else that leaving this alone should allow proper auto-detect of the L2 cache size. The tweak is worth try, but I saw no performance increase with or without, so I assume the chip is reporting it to the OS properly.
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post #5 of 10
12/15/04 at 1:26pm
Does it make a difference if the chip is Banias?
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post #6 of 10
12/15/04 at 2:12pm
This tweak is not necessary, Windows will automatically determine the size of the L2 cache.
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post #7 of 10
12/15/04 at 4:58pm
That's not true. I have a Dothan chip and before I tweaked it. It detected as 1024, which is only 1mb on my Dothan chip, which is 2mb.

And yes, Banias does make a difference, it is only 1mb L2 cache.

I know for a fact that the 3790 has Dothan chips.
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post #8 of 10
12/16/04 at 4:29pm
Is this tweak absolutely necessary at all? How do I know if Windows recognizes the correct amount of my Dothan L2 cache? I mean, what it's just a placebo effect or something, cause I never heard of this problem before widely discussed at all.
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post #9 of 10
12/16/04 at 4:31pm
have u tried reading....? Perhaps following a certain link in this very thread would help?
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post #10 of 10
12/16/04 at 4:44pm
From sakor1
Quote:
I used to have this in the FAQ. I removed it for the reason that Fett pointed out, and lack of evidence that it actually does help performance. It is unecessary on the modern computer and if anything is a placebo solution...
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