On 1/24/10 1:45 AM, Mac User #330250 of [email protected] sent > ---------- Original message ---------- > Subject: Re: Thinking about a new CPU for a Sawtooth 500 MHz G4 > Date: Sonntag 24 Januar 2010N > From: Dana Collins <[email protected]> > To: [email protected] > >> On 1/23/10 4:03 PM, Mac User #330250 of [email protected] sent >> >>> Please correct me if I'm wrong, but the QS can take the PC100 DIMMs also, >>> right? >>> >> >> Hi Andreas, >> No, the QS (and the DA before it) need PC 133 RAM - 512Mb sticks x3 for a >> max RAM capacity of 1.5 Gig (it is the only downgrade of the QS/DA to the >> Sawtooth - the Sawtooth has 4 Ram slots so you could actually max at 2 Gig >> RAM in it). > > I knew that. But doesn't the QS *take* PC100 RAM as well? While this will > include a slight speed decreese it will make the purchase of RAM-DIMMs > optional. Right? > > I've used PC100 DIMMs _and_ PC133 DIMMs in my Quicksilver 2001 733 MHz without > a problem. System Profiler shows which type of DIMM you're using. > > Saying that I have to include that the very same Quicksilver didn't take an > identical DIMM -- it just ignored it and showed the memory bank as being empty > -- while the other DIMM was recognized normally. That was PC133 RAM by the way > and the DIMMs has serial numbers in sequenze. It was and is a mystory to me. > > Cheers, > Andreas aka Mac User #330250
HI Andreas, If you have used PC-100 in a unit designed for faster RAM, I would say that is an anomaly, or you have the darned luckiest Mac on the planet! :-). It is my understanding, supported by both advice and experience, that units needing PC-100 are forward compatible (i.e. You can use PC-133 in a Sawtooth requiring PC-100), but not the opposite. I remember having a beige G3 and I had a mix of PC-66 (the native requirement), PC-100 and PC-133 in it, but I could not use any of the PC-66 in my B+W G3. My Sawtooth G4 was loaded with PC-133 when I got it, which I was able to migrate to my DA, and eventually a QS; I accidently put a PC-100 in my DA, and it beeped and chirped angrily at me (so sorry!). I suppose a DA or QS could use PC-166, if it existed, but by then the 2100 and beyond was upon us (different socket altogether). Best regards, Dana -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
