I've got 3 antec power supplies that are completely useless to me right now, and I'm trying to decide if I should RMA them.

First is a Neo HE 500W. It apparently isn't compatible with Intel's 965 chipset, and I've got to send it back in to get one with an updated firmware that is compatible.

The other two are SP-500 models.

One is making a high pitched squeeling noise, even when the PC is off. It's causing my speakers to make all sorts of pops and squeeks when I play sound on the PC.

The second will work all the way up until xp or vista...