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Question About Ddr Ram Upgrade


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#1 CASTIGLIANO

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Posted 28 March 2006 - 08:42 AM

my motherboard is ASUS P4PE-X and using a P4 2.53Ghz 533mhz FSB processor. I currently have a 512mb PC2700 ram and planning to upgrade it to PC3200 ram them put my old PC2700 ram to my sisters CPU. question is; will my motherboard accept/recognize the PC3200 ram? I have read my mobo manual and it says that in order to use a 800mhz FSB P4 processor you need to install a PC3200 ram. how about if my processors FSB is 533mhz? will the PC3200 ram be compatible with the 533mhz P4 processor????

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#2 stevealmighty

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Posted 28 March 2006 - 09:01 AM

Yes, your board will handle DDR400/PC3200 ram. You should have 3 ram slots, and it will hold a maximum of 2 gb of ram, however you should run ddr ram in pairs to gt the full effect (speed) of the ram (DDR runs faster in equal pairs, so if I were you I'd get 2 sticks of 1 gb ddr400/pc3200 ram).

That can be verified HERE

Now, as far as the manual stating that you need to have pc3200 ram in order for it to recognize a cpu with a fsb of 800mhz....that's kind of odd to me. I don't see why it would make a difference one way or the other. I have a 500mhz fsb cpu, and I'm running pc3200 ram with no issues at all. However, you might want to get a second opinion on that :thumbsup:

From what I can find on google, your board is discontinued, so it's support might be limited. Try to find a direct link to the website for support for your board in your manual, and see what you come up with.

Hope it helps!
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#3 CASTIGLIANO

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Posted 28 March 2006 - 10:12 AM

tanxs! stevealmighty, hope i can get some 2nd opinion for those whoved tried this mobo and PC3200 ram also.

#4 linderman

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Posted 28 March 2006 - 07:14 PM

The PC3200 ram will negotiate down to PC2700 speeds to run on your system which is a 533mhz bus.

But for those people who buy a 800mhz board you cant get 800mhz performance out of PC2700 ram, it will run on PC2700 ram but the reduced ram capabilities will slow down the potential of the motherboard. As for installing ram in pairs thats very true of a dual channel capable motherboard which I don't thing a 533mhz board can do, and if you have three memory slots than I know you cant get dual channel performance out of that board.

There will be no peformance boost for you to use PC3200 ram sticks in your current board, it will run them and if the total amount of ram you are installing exceeds what you had previously (up to two gigs that is ) isntalled then the additional ram quantity will be the factor that makes things faster >>>> not the increase to PC3200

#5 stevealmighty

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Posted 28 March 2006 - 11:53 PM

:thumbsup: So, even though my mobo can handle 800mhz fsb, but i'm only running 533mhz fsb, then my ddr400/pc3200 ram isn't doing me a lick of good? :flowers:
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