Can I mix memory types?

Posted By : of Data Doctors on September 22, 1999

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I recently upgraded from 32 Meg of RAM to 64Meg. After doing this, I discovered that I mixed EDO and Fastpage memory. My system recognizes the full 64 Meg, but I have been getting repeated lockups and crashes. could this be caused by the mixed memory? Would it clear up if I installed all EDO(EDO came originally with the machine)?

This question was answered on September 22, 1999. Much of the information contained herein may have changed since posting.

It is most likely that switching to the same type of memory will cure the problems you have had with lockups The problem stems from the two types of memory opeating at two different speeds.The following was taken from ZDNET's support page, concerning using one type of memory versus the other:

While EDO DRAM can operate as speeds of up to 50MHz compared with 40MHz for FPM, tests show EDO's speed increase to be minimal, according to Computer Shopper reviewers Alice Hill and Bill O'Brien:

Switching from FPM to EDO provided minimal if any enhancement to the computer's overall operations Any gain that might have been achieved was too close to the tests' margin of error to note reliably

Judging by the article, it would be wise to choose one type of memory and stick with it, with there being very little difference between which type you choose.

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Posted by of Data Doctors on September 22, 1999

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