Messages in this thread |  | | Subject | Re: > 64 MB of RAM | Date | Tue, 07 May 1996 15:46:58 +0200 | From | Herbert Wengatz <> |
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+> Memory prices seem to be falling and I am contemplating buying more +> memory. +> +> In Documentation/Configure.help, it says the following: +> +> : Limit memory to low 16MB +> : CONFIG_MAX_16M +> : This is for some buggy motherboards which cannot properly deal with [..] +> : available via ftp (user: anonymous) in +> : sunsite.unc.edu:/pub/Linux/docs/HOWTO. You also need at least 512kB +> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +> : of RAM cache if you have more than 64MB of RAM. Some other things +> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +> : to try when experiencing seemingly random, "weird" problems: 1) [..] +> +> Is the line about needing a 512kB cache true?
Well, yes and no.
With 256 K Cache, you can address only 64 MB RAM (hold it in the Cache), if you have more RAM, you'll experience a major loss of performance, since half of the time, you may get "cache misses" (No! No ladies for cash!!! ;-) ).
If you want to try this out, disable your cache in you BIOS. This will give you the same experience *NOW* !!! :-) +> In theory, my motherboard can hold up to 128MB of memory, yet I am +> fairly certain that I am limited to a 256kB cache. (I have a Plato +> motherboard.)
Yes - The board manufacturers are trying to spend only as much money for the boards, as they are forced, to. +> Kevin
Good luck, hope you may upgrade your board!
Regards,
Herbert
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