on 3/24/03 8:38 PM, Josh Allen at [EMAIL PROTECTED] wrote:
>
> On Monday, March 24, 2003, at 04:33 PM, Michael Shaw wrote:
>
>> Guys & Dolls:
>>
>> Today I got four 256-Meg PC133 DIMMs in the mail off an eBay seller.
>>
>> What I actually expected and what I paid for were four 256-meg PC100
>> DIMMs for
>> my wife's Blue & White G3 tower.
>>
>> Are these PC133 CL3 DIMMs theoretically better than PC100 ???
>>
>> They WON'T WORK in the Blue & White. They install just fine but on
>> Startup the
>> computer just shows a folder with a question mark on it instead of
>> starting up
>> normally.
>>
>> I removed four 64-meg PC100 DIMMs to put in the new ones, but if I put
>> three
>> of the 64s in and any one of the new PC133 DIMMs the computer will not
>> start
>> up.
>>
>> I put the original four small DIMMs back in before the kids started to
>> panic,
>> but now I have four 256-meg PC133 DIMMs that my computer does not like.
>>
>> Are these things supposed to be backward compatible ???
>>
>
> I have 4 PC 133 256 in my B&W, they work fine, REV C Logic board. Which
> revision is yours?
>
> -Josh
>
The problems that you were having may also be due to the chips used on the
DIMMS. A while back I bought some PC133 memory to use in a P3-600 (133 mhz
bus speed), and because of the type of chips that were installed (256MB on 8
or so chips) it could not see all of the memory. I wound up having to buy
PC100 memory (same type, different density - 16 chips for 256MB), which
worked fine.
Brian Futrell
--
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