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beige ram pc133?
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Forum Regular
Join Date: Apr 2002
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Would pc133 ram work in a beige g3 which really only asks for pc66?
pc100 does, but pc133 is cheaper, plus I could then stick it in my next second hand machine...
Thanks
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Forum Regular
Join Date: Apr 2002
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I bought it anyway and pc133 ram works...
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Mac Elite
Join Date: Jun 2000
Location: If I tellz ya, then I gotsta killz ya !
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Of course it works  albeit only at 66mb/s though! (downclocks itself automatically)
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Signatures are ugly. Bitchy women are ugly......YOU do the math :)
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Grizzled Veteran
Join Date: Jun 2001
Location: London'ish
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Kinda works the other way around too.. I clocked the bus in my Beige G3 up to a giddy 83Mhz. And it has 3 X 128mb chips in it, all rated at 66Mhz.
And it has been solid as a rock for weeks
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The worst thing about having a failing memory is..... no, it's gone.
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Forum Regular
Join Date: Mar 2003
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Originally posted by bowwowman:
Of course it works albeit only at 66mb/s though! (downclocks itself automatically)
eh, I wouldn't say of course. I've frequently seen PC66 system read PC133 ram at half of it's size(256 read as 128). Sometimes it works, sometimes it doesn't
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Mac Elite
Join Date: Dec 1999
Location: Utah
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Because Macs can only use low density SDR ram.
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Work: 2008 8x3.2 MacPro, 8800GT, 16GB ram, zillions of HDs. (video editing)
Home: 2008 24" 2.8 iMac, 2TB Int, 4GB ram.
Road: 2009 13" 2.26 Macbook Pro, 8GB ram & 640GB WD blue internal
Retired to BOINC only: My trusty never-gonna-die 12" iBook G4 1.25
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Fresh-Faced Recruit
Join Date: Jan 2004
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the beige G3 board will run ram @ the 66MHz data rate even if it is clocked up to 83.3MHz by dropping from CL2 to CL3 (every 3 cycles instead of every 2 cycles) so the benifits of clocking the bus up to 83.3MHz are that you can run the chip faster (theoretically, depends on your chip) and again theoretically reducing overhead from the PCI bus (it should allow you to add total bandwidth, but the ram bandwidth will not change regardless of speed settings over 66MHz (will actually decrease if it's over 66 but less than 83.3 due to timings). and PC66 is the minimum spec. anything beyond should work provided it meets the specs in apple's online info.
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Professional Poster
Join Date: Sep 2000
Location: Texas
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I have read reports that in some it does, but in the older systems it does not. I bought PC100 all 3 times I upgraded the memory in my beige G3. Now running 384MB strong and hopefully going higher soon!
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Professional Poster
Join Date: Sep 2000
Location: Texas
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Taken from TigerDirect.com
Boost the performance of your desktop computer system to its maximum capability with PC-133 168-pin Synchronous Dual-In-Line Memory Modules (DIMMS). The PC-133 is designed to operate at 133MHz and is one of the fastest types of industry standard memory on the market today. It is specificly designed to work with new high-speed processors like the Pentium III. But this PC133 memory is not backward compatible to PC100 SDRAM and other slower speed memory. (Check your motherboard specifications for compatibility.)
Taken from here: http://www.tigerdirect.com/applicati...p?EdpNo=504537
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