Aside from the pain of tracking down 64-bit drivers - why not go 64-bit?

Apple has already gone almost completely 64-bit OS with Snow Leopard and
it's been around in *nix circles for a long time.

---------------------------
Brian Weeden
Technical Advisor
Secure World Foundation <http://www.secureworldfoundation.org>
Montreal Office
+1 (514) 466-2756 Canada
+1 (202) 683-8534 US


On Fri, Sep 18, 2009 at 8:35 PM, DSinc <[email protected]> wrote:

> Tim,
> In your "business" position I get this. Should you choose this position
> personally, that is fine.  Please accept that there are many folk everywhere
> that just do NOT yet see the need for a 64-bit OS. JMHO.
> Best,
> Duncan
>
>
>
> Tim Lider wrote:
>
>> Hello all,
>>
>> Man explaining it and reading the explanation can make your brain hurt.
>> Let's just say for the original poster it's not enough and should upgrade
>> to
>> 64-bit OS.
>>
>> Regards,
>>
>> Tim Lider
>> Sr. Data Recovery Specialist
>> Advanced Data Solutions, LLC
>> http://www.adv-data.com
>>
>>
>>  -----Original Message-----
>>> From: [email protected] [mailto:hardware-
>>> [email protected]] On Behalf Of Greg Sevart
>>> Sent: Friday, September 18, 2009 12:24 PM
>>> To: [email protected]
>>> Subject: Re: [H] More than 4GB of ram and VM question
>>>
>>> It isn't as much of a mystery as people make it out to be. By default,
>>> on a
>>> 32-bit system with 4GB of RAM, 2GB is available for user space, and 2GB
>>> is
>>> reserved for exclusive use by the kernel--which would include kernel
>>> mode
>>> drivers. You are also correct in that some of this upper space is
>>> reduced by
>>> various system devices, some of which might not make much sense. The
>>> reason
>>> that systems differ is because of varying chipsets, their maximum
>>> addressable memory, the ability of the chipset and BIOS to remap memory
>>> above system-reserved spaces, and, of course, the devices installed.
>>>
>>> Using the /3GB switch will shift the division to 3GB of userland and
>>> 1GB of
>>> kernel memory, but keep in mind that each individual 32-bit address
>>> will
>>> still be limited to 2GB of memory unless it was compiled with
>>> LARGE_ADDRESS_AWARE. It gets much more complicated when you're using
>>> PAE
>>> (Physical Address Extensions) and AWE (Address Windowing Extensions),
>>> but
>>> that realm is only relevant if you're running Server Enterprise or
>>> better.
>>>
>>>  -----Original Message-----
>>>> From: [email protected] [mailto:hardware-
>>>> [email protected]] On Behalf Of Winterlight
>>>> Sent: Friday, September 18, 2009 1:00 PM
>>>> To: [email protected]
>>>> Subject: Re: [H] More than 4GB of ram and VM question
>>>>
>>>> This is not how I understand it to work, not that there seems to be
>>>> any kind of consensuses on this, but I read in Maximum PC that 32 bit
>>>> supports 4GB of RAM addressing. You start out with 4GB of RAM and
>>>> then windows starts knocking off for addresses already used by your
>>>> video card, your network card, whatever. This is why some people show
>>>> 3.2GB some, just 3GB. To add to the confusion, Maximum PC has
>>>> reported that MS has stated that windows can actually use some of
>>>> that undressed RAM for things such as drivers.
>>>>
>>>>
>>>> At 07:24 AM 9/18/2009, you wrote:
>>>>
>>>>> Hello Brian,
>>>>> 32-bit is really locked to 3GB of RAM, it's just Windows is
>>>>>
>>>> reporting
>>>
>>>> the
>>>>
>>>>> 3.6GB of RAM.
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>>

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