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DPChallenge Forums >> Hardware and Software >> Help with configuring new pc!
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12/24/2008 05:57:26 PM · #26
Originally posted by Prof_Fate:

Originally posted by smardaz:

i am assuming you will be running vista? xp can not address 4 gigs of ram, to the best of my knowledge 3 is the limit


vista can't either - well, vista 32 can't. You need Vista 64 or XP 64, but Vista will be cheaper and easier to find. The 64 bit version of vista is free off MS's website, but you need teh registration key from the 32 bit you bought.

My latest PC is vista32 as teh one app I need to run on it is a specialized app that the company says will only run, is only supported, on 32 bit OS and they have no plans to migrate to 64 bit at this time. Ouch.


For non crippled Mobos (cheapo manufactures) 32 Bit (Vista) will see and use greater than 3.2G if you set PAE (Physical Address Extension), Like I say I've seen it work on decent mobos and not work on budget boards. XP SP2 can use up to 4G with PAE enabled.

It is kind of like Memmaker of the old days where it pages through to memory above ~3.2G

For 32bit Vista you can force PAE with BCDEdit /set PAE forceenable

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