🚀 go-pugleaf

I'll add my voice. The two quoted sources are incorrect. Mixed memeory speed
is not a problem as long as the slowest memory access time is honored with
the appropriate number of wait states.

T. Quade
B.A.Sc., MSc., P.Eng.


In <Pine.A32.3.91.960420165803.51803A@black.weeg.uiowa.edu>, "Scott R. Eliason" <seliason@blue.weeg.uiowa.edu> writes:
>On 20 Apr 1996 John@.MISSING-HOST-NAME. wrote:
>
>[snip snip snip]
>
>> Now hear this. OS/2, W95, and even the mighty UNIX, have absolutely no
>> idea what the speed of the memory is. They don't care, it matters not at all,
>> and anyone who says that the OS knows, or cares, is wrong. Plain and 
>> simple!
>> 
>[snip]
>
>Hmmmm..., I may be getting into this thread a bit late, but
>if this issue is so "plain and simple" then why do some 
>authorities disagree with you in print?  For example, the authors of 
>_OS/2 Warp Unleashed_ state, "A Trap 0002 almost always indicates a 
>problem exists with the physical memory.  The most common causes are 
>single inline memory modules (SIMMs) that are not the same speed..." (P. 
>943)  Unless I'm missing something here, your statement is entirely at 
>odds with this statement as well as others.  Another example can be found 
>in the _User's Guide to OS/2 Warp_, which comes with Warp itself and is 
>published by IBM.  Here, on p. 175 the author's explain that a Trap 0002 
>error can be due to mismatched SIMMs that operated at different speeds.
>
>You go on to say:
>
>> have we got it now? Mix the speeds. faster won't hurt! No OS on the planet
>> can determine ram access speed! No OS cares!
>> 
>
>Well, it seems that at least from two sources, you are overstating the 
>case.  The OS may not "care" (whatever that means), but according to 
>these sources it may get tripped up in accessing memory from SIMMs of 
>different speeds.
>
>===========================================================================
>     Scott R. Eliason                    Email:  scott-eliason@uiowa.edu
>     Department of Sociology           
>     University of Iowa
>
>       
>