Article View: comp.sys.ibm.pc.hardware
Article #20632Re: Different speed SIMMs causing slow down
From: Cameron Spitzer
Date: Thu, 14 Apr 1994 00:07
Date: Thu, 14 Apr 1994 00:07
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In article <1994Apr11.110710.1264@mnemosyne.cs.du.edu>, Zhahai Stewart <zstewart@nyx10.cs.du.edu> wrote: >boonlow@kits.sfu.ca (Boon Chong Benjamin Low) wrote: >> He upgraded from 16mb to 32 mb and the system doesn't seem any faster, >> Also, he has only 64kb of internal cache on the motherboard, would >> upgrading to 256kb helps ? > >It might. Some motherboards direct map the cache to a particular memory >area - like the first 64K only caches the first 8/16 MB of main memory, so >an additional 8/16MB runs uncached and slow. I've heard of other cases >where more memory runs slower for that reason. Such motherboards should be sold as equipped with something other than (less than!) a direct-mapped cache. "Partially cached" or "fixed mapped" perhaps. What a crock. If somebody sells you a board like that you should return it and demand your money back. And post here so we know where the rip-offs are! -- Cameron Spitzer, San Jose CA cls@truffula.sj.ca.us
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: ffec8,a0838dc0f6bcb21c X-Google-Attributes: gidffec8,public X-Google-Thread: f8e37,a0838dc0f6bcb21c X-Google-Attributes: gidf8e37,public X-Google-Thread: 10265e,a0838dc0f6bcb21c X-Google-Attributes: gid10265e,public X-Google-ArrivalTime: 1994-04-13 17:07:15 PST Newsgroups: comp.sys.ibm.pc.hardware,comp.ibm.pc.hardware,biz.comp.hardware Path: arc1-ca.pugleaf.net!gmd.de!xlink.net!howland.reston.ans.net!cs.utexas.edu!swrinde!sgiblab!a2i!cameron From: cameron@rahul.net (Cameron Spitzer) Subject: Re: Different speed SIMMs causing slow down Message-ID: <Co8304.26w@rahul.net> Sender: news@rahul.net (Usenet News) Nntp-Posting-Host: bolero Organization: a2i network References: <boonlow.765828469@sfu.ca> <1994Apr11.110710.1264@mnemosyne.cs.du.edu> Date: Thu, 14 Apr 1994 00:07:15 GMT Lines: 23