Hello everybody!
I just got into Arduino boards (mine is shipping as we speak) and wanted some advice, since all the coding I know is a bit of C++.
My question is, how could I make the Arduino board take my CPU and GPU temps of my PC that it's connected to, and show the on an 16x2 LCD display?
Also, please be patient and explain in easy terms as I'm new to all of this. 
Thanks,
Peter.
Buy two thermal sensors and attach them appropriately.
There are example programs on the web for just about any commonly available sensor. Google "arduino" and the name of your sensor to find them.
jremington:
Buy two thermal sensors and attach them appropriately.
But wouldn't that give inaccurate results than to just have an app that reads the core temps?
an app that reads the core temps?
How is that an Arduino project?
Put your Arduino gear on Ebay, and then go here Core Temp
What you usually do is write a small program on the PC that reads the temps and sends it down the serial port for the Arduino to display it.
KeithRB:
What you usually do is write a small program on the PC that reads the temps and sends it down the serial port for the Arduino to display it.
In the Good Old days, you could attach an LCD directly to the LPT socket and run it direct from an app, no microcontroller required.
LPT socket
The youngsters don't know what that is.
I didn't either until I googled it. It was always the parallel port to me. That said, there might be a header for this port on his motherboard.