e6400 on 64 bit?

well i finally convinced someone to send me a 64 bit cd of vista lol. someone said it was better to use 64 bit vs 32 bit for vista and was wondering if this is real? and wat are the benefits of using 64 bit over 32 bit and vise versa? except to utilize all of my 4 gigs of ram. also the dell rep said their driver support for the 64 bit was not as good as the 32 bit and was wondering if this is true?

and will some games not work on 64 bit or does that not matter?

oh and someone said when you reformat you should reformat in ahci mode, and was wondering how you do that

 

64-bit operating systems have several inherent benefits over 32-bit. In short, it allows you to use over 4GB of RAM, feels "snappier," and has the potential to be more efficient.

I think Dell's been pretty good about drivers for 64-bit, especially for its business lines. So I wouldnt' worry about that. Also, the vast majority of games should run fine in Windows 64-bit - I have never had any problems.

For a more in-depth read on the benefits of 64-bit, look at this thread here.

 

You can find that setting in BIOS. I'm not sure exactly where it is, but it should be set to IRRT mode by default. There should be a third option for ATA mode as well. Once you set that, just run the Vista installation. As far as I know, it won't need any fancy slipstreaming like XP.