Apple has made Macs with every model capable of accepting maximum amount of RAM aside from having base RAM for upgrading purposes.With regard to the RAM cards, it is my understand that all that are for the Duos will work in any Duo, but that some of the earlier Duo will not "see" all the memory on the larger cards.
For example, I have a 20 MB card advertised on eBay as having been pulled from a 2300 in my 270c, & it works fine, for a total of 24. However, I am told by reputable authorities, including Apple, that if I put a 32 MB card I will only get 32 MB total, as the RAM controller will then fail to "see" the 4 MB on the motherboard. Apparently the controller (or maybe it's a ROM issue) was not programmed to see a total of 36 MB. But the 2300 mobo can see up to 40 MB. So you have nothing to fear if you upgrade to a 2300.
--
If you are not sure how much RAM you have in your Mac, choose About This Macintosh (Computer) from the Apple menu. If you want to upgrade the PowerBook RAM, you have to know the various RAM requirements in particular PowerBook model including the base RAM, maximum RAM, type and speed of RAM and module sizes of RAM. In every PowerBook you'll have one available slot for upgrading the RAM and its RAM modules can be installed with one module at a time. In some PowerBook models RAM modules can be stacked on top of one another which enables to add two modules to the one slot. You can download the Apple Memory Guide document from Apple's Support Web site for all the memory requirements for all PowerBook models that includes diagrams.
Ernie
---------- Duo/2400 List, The friendliest place on the Net! A listserv for users and fans of Mac subportables. FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml> Be sure to visit Mac2400! <http://www.sineware.com/mac2400>
To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> Need help from a real person? Try. <[EMAIL PROTECTED]>
---------- Dr. Bott | 10/100 Ethernet for your 2400 is finally here! MPC-100 | <http://www.drbott.com/prod/mpc100.html>
RoadTools $30 PodiumPad available at Apple retail stores, $20 Traveler CoolPad at Staples. Both in white for iBooks at <http://roadtools.com>
Midwest Mac Parts ][ <http://www.midwestmac.com> After-market parts for Macs. ][ 888-356-1104 ][
MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only $879! Norton AntiVirus 6 Only $19! We Stock PARTS! <http://www.macresq.com>
