Computer PSU wire question?
I want to turn an old computer PSU into a lab bench PSU. After cutting all the connectors at the end of the cables, I've noticed that some of the common (black) wires were made of copper, while some of them were made of nickel \ aluminum (Silverish).
The same is true for the +5V (red) cables.
It's not the first PSU I noticed that had the different materials, and I was wondering:
1) Why are there two different kinds of wire?
2) Is it OK to ignore the wire material and just splice all the blacks together, and all the reds together?