[G4] Memory Culprit?

[sr ferenczy]

though the specs are found all over the place, anandtech has a nice 
little concise chart

http://www.anandtech.com/guides/viewfaq.html?i=66

PC133 is a 7.5 ns part by spec


sandor


On Nov 17, 2003, at 10:57 AM, Franck wrote:

> Are you guys sure about this?  I must ask because the two 10ns PC133 
> DRAM I have were sold to me by a vendor that supports this list.  One 
> 512, one 256.  The Apple memory that came with the machine is 7.5ns.   
> Thanks.  Franck.
>
> On Sunday, November 16, 2003, at 04:08  PM, Brian Conner wrote:
>
>> Excellent post, sandor.
>>
>>
>> Brian Conner
>>
>>
>> -----Original Message-----
>> From: Power Macintosh G4 List [mailto:G4 at lists.themacintoshguy.com] On
>> Behalf Of sr ferenczy
>> Sent: Sunday, November 16, 2003 2:05 PM
>> To: Power Macintosh G4 List
>> Subject: Re: [G4] Memory Culprit?
>>
>>
>> actually, that is exactly what would mess things up. for instance, to
>> be able to be properly spec'ed as PC100 ram, the DRAM must run at at
>> least 8 ns , so the 10 ns ram that the original poster had wouldnt 
>> even
>> meet the PC100 specs of the first G4s produced.  hence, problems will
>> abound.
>>
>> as far as OS X being much more picky about ram, it is to an extent, 
>> but
>> more so this is due to the fact that OS X uses almost all your ram at
>> all times (especially if you have under 1 GB) any free ram available,
>> the system will pick up for disk cache, etc. so in essence, OS X is
>> much more likely to find hidden ram errors than OS 9 just because it
>> uses the ram much more robustly.
>>
>> as far as memory testers, most are fairly high level testers (hence
>> they are also fairly quick) a full test of ram could take days, and 
>> the
>> number of different combinations that an OS could send to ram is
>> enormous, and it could easily be that only one particular combination,
>> or one specific order of combinations actually causes the ram to fail.
>> thus since OS 9 didnt use ram nearly as extensively as OS X, it wasnt
>> until OS X that people started to realize their crap ram....
>>
>> sandor
>>
>>
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