i am new to litecoin and litecoin mining, and today i was able to setup p2pool mining on my win 10 rig. now im planning to get some usb miners to just play around with, but what i wanted to know, was in the meantime, using my CPU and/or GPU for mining is ok for the health of the devices? i understand that they will be under stress. they are only being aircooled, and my AMD APU (A8) was hitting temps of 64C, and my GPU (R9280) was hitting temps of 74C. should i just wait till i get the miners, or are these temps ok to use for a day or two to mine? i understand that they are not profitable, but im just into this for hobbies sake.