Re: 4GB in windows xp pro

You are good to go. The memory controller handles everything and the mode is transparent to your apps. Hyperthreading is not really a matter of memory modes. That is handled by the scheduler.

"CTS" <CTS@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:CD53238A-90D9-4AD7-BE2C-1D4D98661F59@xxxxxxxxxxxxxxxx
At this point I don't think i'm going to mess with PAE or 3GB switches. I
just want to know that whatever memory windows or my apps can use will still
make use of the dual channel and hyperthreading capabilities. I want it all
to run the best that it can
--
Always Thanks


"Colin Barnhorst" wrote:

Yes. The same amount of memory shows regardless of the mode.

PAE is normally not useful on XP with only 4GB of ram. It is not designed
to resolve the issue you are addressing. Here is an article on PAE:
http://msdn2.microsoft.com/en-us/library/ms791485.aspx
As you can see PAE addresses specific needs involving NUMA and DEP and is
automatically enabled or disabled as required. The needs concern certain
driver bugs. Even with PAE switched in you won't see 4GB but would see
slightly different numbers from what you do now. See:
http://support.microsoft.com/?kbid&ID=888137

I doubt that you can twiddle enough in the BIOS to recover any significant
ram for user programs. Remember, there are two of you using the computer;
you and the computer.


"CTS" <CTS@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:6BE43118-717F-443D-A032-D02454FD9AA8@xxxxxxxxxxxxxxxx
> Thank you both for the quick reply. It sounds as if i should leave it
> settings alone and see what that does for my machine. I have yet > another
> (probably stupid) question, My motherboard supports dual channel DDR, > If
> all
> four sticks are matched then even if all the memory doesn't show, will
> whatever does show run in dual channel mode?
> -- > Always Thanks
>
>
> "jorgen" wrote:
>
>> CTS wrote:
>> > I've read quite a bit
>> > about the 3GB switch and the PAE switch in the boot.ini
>>
>> With proper hardware support, PAE is normally the way to go in 32-bit
>> OSes. But the PAE kernel in XP/SP2 doesn't allow more than 4GB to be
>> addressed in total, so when it comes to memory support, it doesn't
>> matter if you enable PAE or not.
>>
>> Google DEP, if you want to know why there is a PAE kernel
>>


.

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