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Mac Forum / General / Hardware / September 2008Is this memory compatible with my Mac
I have a single processor 1.8GHZ G5 PowerPC Tower. System Profiler says that it is using PC3200U-30330 DDR SDRAM. I have two pairs of old memory from two different PCs. Pair 1 says: Samsung PC2-3200U-333-10-A1 KR M378T6553BG0 - CCCDS 0450 Pair 2 says:Crucial PC3200U-30331-Z DDR 400 CL3 UNBUFF CT5464Z40B.8TDY BP112J9.PG Are either/both of these compatible with my Mac? Thanks > I have a single processor 1.8GHZ G5 PowerPC Tower. System Profiler says that > it is using PC3200U-30330 DDR SDRAM. [quoted text clipped - 9 lines] > > Are either/both of these compatible with my Mac? The Samsung pair are DDR2, so they won't work in a 1.8 GHz G5. The Crucial pair are more likely to work. They are the right general type (PC3200, unbuffered), assuming they are full size DIMMs, not SO-DIMMs, but I can't find any online reference which confirms the specifications based on the part number.  SignatureDavid Empson dempson@actrix.gen.nz > > I have a single processor 1.8GHZ G5 PowerPC Tower. System Profiler says that > > it is using PC3200U-30330 DDR SDRAM. [quoted text clipped - 20 lines] > David Empson > dempson@actrix.gen.nz Thanks for your post. So if they fit there is no problem in trying them? And, if they work there shouldn't be a stability problem? > > > I have a single processor 1.8GHZ G5 PowerPC Tower. System Profiler > > > says that it is using PC3200U-30330 DDR SDRAM. [quoted text clipped - 21 lines] > So if they fit there is no problem in trying them? > And, if they work there shouldn't be a stability problem? I think you've misquoted or misread the part number. The second line is probably "CT6464Z40B", which would make it a 512 MB DIMM which Crucial is still selling: http://www.crucial.com/store/partspecs.aspx?IMODULE=CT6464Z40B Oddly, they list a different part number for 512 MB DIMMs for a PowerMac G5, and I can only find it via their system configuration tool": http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=3CC55085A5CA7304 The basic technical specs are identical. If it was my computer, and I knew the memory was working previously, then I'd try it. Worst case it might not be recognised. Perhaps you could try contacting Crucial and asking if it will work in a Mac. You will need to install the memory as a matching pair. Comparing to your existing memory, the last digit of the RAM speed details is different (1 vs 0), but I doubt that will affect anything other than a very slight performance hit (probably unmeasurable). If the memory is recognised (as reported in System Profiler) it should be stable as long as the memory isn't faulty. Crucial is generally regarded as a good brand. SignatureDavid Empson dempson@actrix.gen.nz > > > > I have a single processor 1.8GHZ G5 PowerPC Tower. System Profiler > > > > says that it is using PC3200U-30330 DDR SDRAM. [quoted text clipped - 54 lines] > David Empson > dempson@actrix.gen.nz Thanks. I guess I'll email Crucial and double check. |
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