Messages in this thread | | | Date | Mon, 15 Mar 1999 21:08:28 +0100 | Subject | Re: performance drop with BX mainboard and > 1024 MB | From | (Dietmar Stein) |
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Hi Keith,
excuse me, that I am not up to date concerning my information - but there is the AMD-K6, the Cyrix M2, the IDT, the PA-RISC, the ..., the ... and for sure the xyz ... processor (and so on ) rarely new. For sure, I can learn everything about them, but when should I went to bed, ... no, just kidding. It was a suggestion of mine - I heard of some "problems" the PII may have, but information about processor-types and their features is a lot of stuff.So far and greetings, Dietmar
> And lo, Dietmar Stein saith unto me: > > > > I think it' s a problem/feature concerning the board. Some time ago Asus has build > > boards which weren't able tu support more than 64 MB RAM without loss of > > performance. > AFAIK the Pentium II chips can only cache 512 MB. > > > That time you had to add a chip, the so called TAGRAM, to make the board cache > > RAM more than 64 MB. I think the problem still remains on your Soyo-Board. Have a > > look at the documentation and look for "cacheable size of memory" or something > > similar. If it is limited, the board can't cache the whole RAM and will disable > > caching. > The Pentium Pro and Pentium II integrate the Level 2 cache (to which you > are proposing adding tag ram) into the CPU package. > > > I think NT gives you always the same performance if you don't go under the minimum > > requirements of NT.... > NT would have the same problem, unless it simply ignored the uncacheable > memory. > > > > Looks like the cache is not sufficient for more then 512 MB. But Intel claims > > > that this PII processor must be able to adress up to 4 GB RAM. And also the > > > mainboard supports upto 1 GB. > > Just because it "supports" it, "addresses" it, or lets you plug it in, doesn't > make it cacheable. > > Keith > > -- > "Well, look at that. The sun's | Linux: http://www.linuxhq.com |"Zooty, > coming up." -- John Sheridan, | KDE: http://www.kde.org | zoot > "Sleeping in Light", Babylon 5 | Keith: kwrohrer@enteract.com | zoot!" > www.midwinter.com/lurk/lurker.html | http://www.enteract.com/~kwrohrer | --Rebo
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