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Mac Forum / General / Hardware / March 2008Memeory for a Dual-533Mhz G4 DA
I have an old Digital Audio with dual 533Mhz G4s that i recently bought as a replacement back-up. It only has 256 MB of memory, so I started shopping around. I see the great premium that most vendors charge for mac memory (168-pin DIMM, SDRAM, PC133) compared to 'plain old PC' PC133. Is there something special about the memory this Mac requires? Does it need to be low density? Will any PC133 actually work? Thanks, PE -- > I have an old Digital Audio with dual 533Mhz G4s that i recently bought > as a replacement back-up. It only has 256 MB of memory, so I started [quoted text clipped - 4 lines] > something special about the memory this Mac requires? Does it need to > be low density? Will any PC133 actually work? Yes, you can use nearly any kind of std. PC-133 CL3 or CL2 modules for the DA. The only 'brand' i'd avoid for sure is one called 'PQI', which mostly is/was sold in Europe Brands - both 1005 compatible and mostly also rather cheap are - Kingston KVR133X64C3/xxx - fx. KVR133X64C3/512 - OWC Mercury PC-133 CL3/3-2-2 or CL2/2-2-2 - Apcacer, Crucial, etc... The DA Dual 533mhz can take up to 4x512mb cheers, Erik Richard  Signature~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Rgds. Grüße, Mvh. Erik Richard Sørensen, Member of ADC <mac-man_NOSP@M_stofanet.dk> <http://www.nisus.com> NisusWriter - The Future In Multilingual Textprocessing ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > I have an old Digital Audio with dual 533Mhz G4s that i recently bought > > as a replacement back-up. It only has 256 MB of memory, so I started [quoted text clipped - 19 lines] > > cheers, Erik Richard Thanks. I couldn't come up with a reason why a vendor would say that it wouldn't work other than they can't guarantee it. PE -- > > I have an old Digital Audio with dual 533Mhz G4s that i recently bought > > as a replacement back-up. It only has 256 MB of memory, so I started [quoted text clipped - 17 lines] > > The DA Dual 533mhz can take up to 4x512mb Minor correction: make that 3 x 512 MB. There are only three RAM slots in the Digital Audio (and QuickSilver). Don't use ECC RAM, nor buffered RAM, and parity is not going to achieve anything (but probably won't hurt). DIMMs contain a "serial presence detect" EEPROM. Some generic RAM vendors might supply DIMMs where this chip hasn't been programmed correctly. In that case, the Mac won't recognise the RAM, as the Mac requires valid data in the SPD EEPROM. This shouldn't be a problem if you get the memory from a reputable supplier, especially one advertising RAM which is Mac compatible. SignatureDavid Empson dempson@actrix.gen.nz >>> I have an old Digital Audio with dual 533Mhz G4s that i recently bought >>> as a replacement back-up. It only has 256 MB of memory, so I started [quoted text clipped - 19 lines] > Minor correction: make that 3 x 512 MB. There are only three RAM slots > in the Digital Audio (and QuickSilver). Argh.:-(! - Of course, - I even have just refurbished such one and sold it not long ago... > Don't use ECC RAM, nor buffered RAM, and parity is not going to achieve > anything (but probably won't hurt). [quoted text clipped - 6 lines] > This shouldn't be a problem if you get the memory from a reputable > supplier, especially one advertising RAM which is Mac compatible. That's also why I especially mentioned the Kingston KVR133X64 series and the Mercury from OWC. - I know these will work, - I only use these brands myself when talking about PC-133 modules... cheers, Erik Richard Signature~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Rgds. Grüße, Mvh. Erik Richard Sørensen, Member of ADC <mac-man_NOSP@M_stofanet.dk> <http://www.nisus.com> NisusWriter - The Future In Multilingual Textprocessing ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >>> I have an old Digital Audio with dual 533Mhz G4s that i recently bought > >>> as a replacement back-up. It only has 256 MB of memory, so I started [quoted text clipped - 14 lines] > >> - OWC Mercury PC-133 CL3/3-2-2 or CL2/2-2-2 > >> - Apcacer, Crucial, etc... http://dealnews.com/memory/ great place to shop for Mac compatible RAM. SignatureI do the best I can, but I could be wrong. please post reply to newsgroup. David, Williamsport, PA. USA. http://mysite.verizon.net/vzev1hs3/ |
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