[CentOS] Is a new HP-dl380 dual XEON 64 bit or 32 bit

>      * Intel(R) Xeon processors with EM64T, 800 MHz FSB and 2MB L2 Cache
>      * 400MHz DDR2 Memory, 6 sockets, 12GB Max
>      * Ultra 320 Smart Array 6i w/transportable BBWC (128MB) option
> </snip>
> 
> I will download the ia64 bit version then.

You want the x86_64 version, not ia64.
EM64T is AMD64 compatible
Xeon's aren't compatible with ia64

-Jay