I apologize if this is a dumb question, but I'm pretty electrically-challenged.

If I were to down-clock all of my S7's to, say, 500Mhz, would it save any measurable amount on electricity over the days/month?

Or does the PSU still pull a set amount from the wall vs. pulling the amount needed to run the miner?

Thanks for any replies!

yes and no.

lets say you have a batch one two or three.

Mine could do .249 watts a gh with a platinum psu.

So if I ran it at 4000gh it used .249 x 4000 = 996 watts at the wall

if I ran it at 5200gh it used .249 x 5200 = 1294.8 watts at the wall

so on the yes the watts are lower

and on the no the watts per gh are the same

your plus side for lower freq/gh are

it runs cooler

you can lower fans manually to 40% which means some peace and quiet

and of course less watts at the wall.

the down side is less gh.