Re: [Off Topic] Celeron 366 or 400 MHz, 64+ MB RAM?
On Sun, Jan 09, 2000 at 09:47:44PM -0600, ktb wrote: I'm looking into buying a computer with either a 366 or 400MHz Celeron processor. It has an L2 cache size of 128 Kb. I've read somewhere that an L2 cache under something like 512 kb, will slow down your computer if there is more than 64 MB of RAM added. On the other hand I've read that I don't think that's necessarily true. That is, I don't see why a small cache on a system with more than 64 mb of ram is any different that a system with less physical memory. this isn't a problem for PII processors and above, even if the cache is smaller than 512 kb. I've searched the archives and looked around on the net and can't nail this one down. Can I use more than 64 MB with this processor/L2 cache combination? You certainly can use a Celeron with 64 MB or more physical memory. The Celeron and Pentium II are the same chip, except for the L2 cache size (the Pentium II has a 512kb L2 cache and the Celeron a 128kb L2 cache). Very fast memory systems (e.g. cache memory) is very expensive, and I'm pretty sure this is what accounts for the price difference between the Celeron and Pentium II. For two systems that differ only in their processors, one with a P-II and one with a Celeron (both chips with the same clock), the P-II would probably be the better performer. But if you're basing your decision on price/performance ratio, rather than just performance, the Celeron is usually the winner. For what you'll save on buying a Celeron over the Pentium II, you can probably afford a higher clock or more physical ram. If you can afford it, you might consider the AMD Athlon, arguably the best PC chip available at this time, and reasonably priced. Hope this helps, MG -- Matt Garman, [EMAIL PROTECTED] And through the window in the wall Come streaming in on sunlight wings A million bright ambassadors of morning. --Pink Floyd, Echoes
Re: [Off Topic] Celeron 366 or 400 MHz, 64+ MB RAM?
k == ktb [EMAIL PROTECTED] writes: k I'm looking into buying a computer with either a 366 or 400MHz Celeron k processor. It has an L2 cache size of 128 Kb. I've read somewhere that k an L2 cache under something like 512 kb, will slow down your computer if k there is more than 64 MB of RAM added. On the other hand I've read that k this isn't a problem for PII processors and above, even if the cache is k smaller than 512 kb. I've searched the archives and looked around on k the net and can't nail this one down. Can I use more than 64 MB with k this processor/L2 cache combination? Yes. The problem you mention was a problem with the external L2 caches on some motherboards. All socket-7 type if I recall correctly. It is not a problem with any P2/P3 derived processor. -- More Important Drivel from: Scott Henry [EMAIL PROTECTED] /\/\/\ http://reality.sgi.com/scotth/
Re: [Off Topic] Celeron 366 or 400 MHz, 64+ MB RAM?
On Sun, 9 Jan 2000, ktb wrote: processor. It has an L2 cache size of 128 Kb. I've read somewhere that an L2 cache under something like 512 kb, will slow down your computer if there is more than 64 MB of RAM added. On the other hand Ancient problem. Only afflicts Pentiums under about 200 MHz, and AMD chips with cheap motherboards. There are a variety of problems regarding the 64MB barrier and cache. Most notably, old Pentium motherboards couldn't cache memory about 64MB at all, and Linux wouldn't work if you had less than 512K of cache and more than 64MB of RAM. Not a problem on modern chips.
Re: [Off Topic] Celeron 366 or 400 MHz, 64+ MB RAM?
A long time ago, in a galaxy far, far way, someone said... I'm looking into buying a computer with either a 366 or 400MHz Celeron processor. It has an L2 cache size of 128 Kb. I've read somewhere that an L2 cache under something like 512 kb, will slow down your computer if there is more than 64 MB of RAM added. An old wives tale from the days of the Pentium, so to speak. My computer (with a Celeron 300 128k L2 cache) actually sped up going from 64MB to 128MB of RAM. On the other hand I've read that this isn't a problem for PII processors and above, even if the cache is smaller than 512 kb. For 686 generation processors (PPro, PII, Celeron, etc) it's not an issue. With Pentiums it was. I've searched the archives and looked around on the net and can't nail this one down. Can I use more than 64 MB with this processor/L2 cache combination? Certainly. I do. -- -- Phil Brutsche [EMAIL PROTECTED] There are two things that are infinite; Human stupidity and the universe. And I'm not sure about the universe. - Albert Einstein
Re: [Off Topic] Celeron 366 or 400 MHz, 64+ MB RAM?
you should have no problems, i cant imagine where you read that.. i am running 466 celerons with 256MB ram, and its _quite_ fast. it may be true that not all of the memory is cached(i can't say wether it is or not). On older i430TX boards(i have one) they could not cache memory beyond 64MB, i ran(and still run) 128MB on it and it runs quite fast, some people panic and think the system will slow to a crawl, when infact most systems will benefit far more from the additional memory then having less memory that is cached. chipset is also important, i have a i440BX chipset. nate On Sun, 9 Jan 2000, ktb wrote: xyf I'm looking into buying a computer with either a 366 or 400MHz Celeron xyf processor. It has an L2 cache size of 128 Kb. I've read somewhere that xyf an L2 cache under something like 512 kb, will slow down your computer if xyf there is more than 64 MB of RAM added. On the other hand I've read that xyf this isn't a problem for PII processors and above, even if the cache is xyf smaller than 512 kb. I've searched the archives and looked around on xyf the net and can't nail this one down. Can I use more than 64 MB with xyf this processor/L2 cache combination? xyf Thanks, xyf kent xyf xyf xyf -- xyf Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] /dev/null xyf [mailto:[EMAIL PROTECTED] ]-- Vice President Network Operations http://www.firetrail.com/ Firetrail Internet Services Limited http://www.aphroland.org/ Everett, WA 425-348-7336http://www.linuxpowered.net/ Powered By:http://comedy.aphroland.org/ Debian 2.1 Linux 2.0.36 SMPhttp://yahoo.aphroland.org/ -[mailto:[EMAIL PROTECTED] ]-- 10:25pm up 143 days, 10:25, 2 users, load average: 1.91, 1.76, 1.62
Re: [Off Topic] Celeron 366 or 400 MHz, 64+ MB RAM?
matt garman [EMAIL PROTECTED] wrote: You certainly can use a Celeron with 64 MB or more physical memory. The Celeron and Pentium II are the same chip, except for the L2 cache size (the Pentium II has a 512kb L2 cache and the Celeron a 128kb L2 cache). One other difference is that the Pentium II/III can run at 100MHz - the 500MHz Pentium II, for example, runs at 5x100MHz, whereas the Celeron has to run at a clock speed of 66MHz (you can set a 100Mz speed in the BIOS, but I have found the machine won't book!). -- Phillip Deackes Debian Linux
