hyperthreading on f11 pae kernel?

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Hello,
I have an old Dell GX260 with one P4 and 1Gb of ram.
I installed F11 32 bit and updated it yesterday with latest kernel available.
I noticed that kernel installed was the PAE one, as stated inside release notes. Also in other documents I see that only i586 is the other available one kernel.
>From /proc/cpuinfo I see that there is the ht flag, but the system gets only one cpu.
In bios I see no option for enabling/disabling hyperthreading, so that I suppose it is enabled by default.... but I could be wrong....
I have to apply in the mean time a bios update but I would like to ask if using PAE implies no ht and if using i586 I can get ht or not in general.
thanks in advance,
Gianluca
 
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