[X4U] RAM Memory - What's the max?

[Eugene]

On Sat, Jul 21, 2007 at 06:53:58AM CDT, Stroller <macmonster at myrealbox.com> wrote:
>
> On 21 Jul 2007, at 05:16, Ed Gould wrote:
>> ....
>> I was in my doctors office today and I brought reading material (yea I 
>> know) a MACZONE catalog. I was looking through the server offerings and 
>> was struck that none of the MACS (in the catalog) offered anything about 
>> 32G (max ram). The one or 2 INTEL server machines offered 128G max ram 
>> (although most were 64G).
>>
>> That got me to wonder as to why Apple doesn't seem to offer 128G (at 
>> least) max ram ?
>
> I think it's a limitation of the o/s - I didn't think OS X 10.4 could 
> currently address more than 16gig, so I'm surprised to see Macs offered 
> with 32gig. Perhaps 10.4's memory space was enlarged when they released the 
> version for the MacPro?
>
> In any case, there are many other options of o/s for generic Intel PCs not 
> designed as Macs. Linux, the BSDs & Solaris spring to mind - I'm sure the 
> latter of these, at least, can address huge memory spaces.

PAE (Physical Address Extension) is an x86 crap feature
that allows 32-bit OSes (which normally see up to 4 GB)
to see 64 GB of RAM.  It's a modern-day DOS extender.


-- 
Eugene
http://www.coxar.pwp.blueyonder.co.uk/