whenever I step on my overdrive SD-2 powered by my Boss PSM-5(power supply and masterswitch) it creates unwanted humms and buzzes....unwanted irritating noise is always there in my amp speaker...

I resolved that problem by using a boss ns-2 as a replacement for the PSM-5...

Take note:

I am using a generic adaptor with the same power supplies...Boss NS-2 and Boss PSM-5.

Will it help me eliminate the noise with my PSM-5 if I use a genuine Boss PSA adaptor with it? Do I really need to buy that adaptor to eliminate the noise?
HELP!