Just a little background that goes some ways toward explaining the dichotomy of Apple specifying a certain amount of RAM, and then later someone finds that a given machine actually can use more...
Came across this issue back in the 68040 days on Dan's original Quad-List. Many of you who are familiar with Quad-List may recall the RAM issue popping up occasionally. When Apple first builds a product, like the iMac DV, and the important point here is when Apple "first" builds a product, they will test it with the largest RAM modules that exist at that time, and then certify the product for that amount of RAM, assuming that the machine can handle that amount of RAM. Now, time goes by and RAM cards now hold more and more RAM. So, the card size that once held only 128M of RAM (two of these in the DV equates to 256M) now can hold 512M (two of which in the DV equates to 1G+). But does Apple go back and retest or recertify the machine for this higher amount of RAM? No, it doesn't. And historically it never has (going out on a limb saying that it never has, but to my knowledge I haven't seen where Apple has done this). So, we end up with a machine that can in actuality support 1G of RAM, but Apple's documentation never catches up and the true capability is never documented officially. Thus, suppliers like CompUSA and most others will maintain that the only level supported is the old, initial, and only level originally published by Apple. Sometimes, it is the case that the OS will only support RAM up to a given amount. I think, and this is really going out on the ol' limb, that OS 9 only supports up to 1G of RAM? I know that there were some limits associated with the old Quad machines and OS 8 and before. Jerry ------------------------------------------------------------------- >on 8/31/02 7:50 AM, MacShogun at [EMAIL PROTECTED] wrote: > >> Hi, with the higher density RAMS, you could have a pair of 512 mb of >> DIMMS and that would put you at 1024 mb or 1gb. So someone upgraded >> your RAMs. ;) That's nice! >I've got the same iMac 400 and 1 gig of ram, but the memory control panel >won't let me select more than 258 mgs for a ramdisk; why? >-- >All the best, >R.A. Cantrell > <[EMAIL PROTECTED]> I never thought about that one so I looked it up on Apple's Knowledge Base. The maximum allowed is 256 mgs. As to why? Because... ;) -- The iMac List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | - Epson Stylus Color 580 Printers - new at $69 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> iMac List info: <http://lowendmac.com/imac/list.shtml> --> 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/imac-list%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
