>>I've got an Intel D865PERL motherboard with an Intel P4 2.8 processor and
>>1Gb or RAM (a pair of GB). I'm looking to upgrade the memory and have
>>looked at the useful crucial.com site, which advises that 32-bit versions
>>of
>>Windows will only recognise, and more importantly use, between 3 and
>>3.5GB.
>>
>>Is this true?
>
> It's true. See http://members.cox.net/slatteryt/RAM.html for a
> discussion.
>
>> In which case, there seems little point in putting 4GB on my
>>Windows XP Pro machine...
>
> It's not clear from your description just how much RAM you currently
> have ("1GB", "a pair of GB"???). If you currently have 2GB or more
> it's not very likely that adding more would do you any good unless
> you're using some VERY RAM-hungry apps (image or video editing, for
> one).
Thanks to all for the helpful input, and apologies for the confusion. To
clarify, I have a pair of 512MB sticks at the moment - 1GB in total - and
I've noticed a significant slow-down on my machine since upgrading some
applications: Dreamweaver, Fireworks and Photoshop all open and run
significantly more slowly than their earlier incarnations.
I also notice significantly more HDD access while I'm waiting for these to
open, so my thinking is that I'll leave the two 512s in there, and bung in a
couple of 1GB sticks, taking the total to three. Does that seem to make
sense?