InfiniteMac OSx86 - hyper threading with a xeon w3520

just got a nice ex58-ud4p and a xeon w3520. all fine except the hyper threading.
i used the dsdt auto patcher for hdef gigabyte boards. then after i noticed the HT wasn't working is decompiled the dsdt and noticed:

Code:

    Scope (_PR)

    {

        Processor (CPU0, 0x00, 0x00000410, 0x06) {}

        Processor (CPU1, 0x01, 0x00000410, 0x06) {}

        Processor (CPU2, 0x02, 0x00000410, 0x06) {}

        Processor (CPU3, 0x03, 0x00000410, 0x06) {}

    }

should be 8 shouldn't it?
then i just extended the list up to CPU7 but that didn't work at all and i only got 1 cpu :-P

any help is welcome because i couldn't fine much about HT and/or xeon so far :-)