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Question About 64 Or 32 Bit?


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#1 azaron

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Posted 05 February 2008 - 02:37 AM

Hi there,
im new to this site, my question is this, how do i tell if i have a 64 bit or 32bit os.
i think its 64 but im not certin, i want to buy more ram for it.
But i no nothing about this pc, that i bought from ebay.

it has 4 memory slots for ddr2 memory. and it has windows xp professional.
installed on,

this is all i have to go on. i dont no much about pcs.

system microsoft windows xp
profesional version 2002 service pack 2

quick teq computers intel ®
pentium® 4 cpu 3.06ghz
3.07ghz, 1.50 gb of ram

brand is alianware. i could provide more info but i just dont no how to use the run comands to look at more detailed specs.

thx for the help in advance.

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#2 03humphrec

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Posted 05 February 2008 - 04:31 AM

proberly 32 bit. 64 bit is only normally used if you have more than 3 or so GB of RAM
This is because 32 bit windows has a ram limit of 3GB


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#3 usasma

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Posted 05 February 2008 - 07:07 AM

In Windows XP, go to Start...Run...and type in "sysdm.cpl" (without the quotes) and press Enter. If that screen does not say 64 bit - then you've got the 32 bit version.

XP (and other 32 bit OS's) can "see" up to 4 gB of RAM - but will not display the full 4 gB. Some systems can work with this, and others can't (I've read that there are problems with DMA transfers in some chipsets).

Next is the DDR2 factor. I seem to feel that I get faster speeds when Dual Channel is enabled on my system - but others will disagree with that. Dual Channel requires matching sticks of DDR2 in order to utilize this. Depending upon your configuration, 2 sticks of 1 gB each - or 4 sticks of 512 mB each would most likely be the sweet spot for your system (and Windows XP).
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#4 DaChew

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Posted 05 February 2008 - 08:09 AM

I seem to feel that I get faster speeds when Dual Channel is enabled on my system - but others will disagree with that.


I will tear their arms out,
:thumbsup:
just kidding, never heard such nonsense, anyone saying that is missing the concept of bottlenecks in benchmarking, when memory speed is the bottleneck then dual channel is 10-20% faster. If something else is the bottleneck,
memory settings don't impact performance.

A good example of this is the intel cpu's, the bottleneck with them is the longer memory pipeline, as you lower cas or use dual channel you see little difference, with the premium ones at higher Ghz or overclocked ones, the pipeline is shortened and the cpu quits being the bottleneck and the importance of performance memory emerges
Chewy

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#5 azaron

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Posted 05 February 2008 - 10:34 PM

thx everyone for the reply very helpful.
one other question, so would it be a good idea to upgrade my os. ? my younger brother who claims to no alot about computers is always bugging me get this get that. should i upgrade my os , so i can get more ram in, atleast thats what ive been hearing.

#6 DaChew

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Posted 06 February 2008 - 04:14 AM

you would be wasting your money upgrading that computer, that P4 is the bottleneck and throwing more memory or a 64 bit OS at the problem would not solve it.

Save your money for a new system and make do until then
Chewy

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