just to update you - i've just tried connecting the ssd to one of the white ports and if anything it gave me about 3rd of the performance i had. and on the diagnostics of the Samsung Magician it said he doesn't even recognize the SATA (while it was connected to the white ports)...
this makes me believe that the white ports are actually much less good. so for now, i've returned it to one of the blue ports.
i think my motherboard is a dinasour and so it doesn't have any SATA3 (whatever that is).
any recommendations on a motherboard that is cheap and yet will do the job? and will be compatible with my CPU??
THIS IS MY SPECS (a reminder):