On Thursday, March 13, 2003, at 02:31 PM, Andrew Johnson wrote: > On Thursday, March 13, 2003, at 01:03 PM, Geno Endicott wrote: > >> I have a Wallstreet with two PC-133 256meg chips. One is 2-2-2 and one >> is 2-2- >> 3. Does anyone know the difference. My laptop seems to be having >> problems with >> the ram. Any ideas on how to fix this? >> > the -2 RAM is CAS-2, while the -3 is (surprise!) CAS-3, the CAS latency > is the rating of how quickly each column of memory in the chip can be > accessed (CAS=Column access strobe) > > As for why you're having problems, I'm looking into my crystal ball and > seeing you sticking the 2 256MB SO-DIMMs in and recoiling in horror as > ASP only shows 256MB total instead of the 512MB you expected. If this > is the case, it is my experience (with a WallStreet 250) that they > don't like PC133 ram, and that PC100 works perfectly for some strange > reason, despite the fact that PC133 is supposed to be fully compatible > with PC100/66... if this isnt the case, well I don't know then. > > -Andrew > If I may add what knowledge I have.
You should run 2-2-2 as it is faster. But if you run both kinds then the speed defaults to the slower 2-2-3 for both. Replace the 2-2-3 with a 2-2-2 and you will see the full amount of RAM installed and some speed increase although it may not be excitingly notable. Best regards, Byron Two WallStreet PBs: 13.3 inch and 14.1 inch -- G-Books is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Check our web site for refurbished PowerBooks | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-Books list info: <http://lowendmac.com/lists/g-books.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-books%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
