Everytime I start my computer I get the following error and I don't know where to start to fix it.

Also over the last week I noticed the time and date do not change or stay accurate, I have to manually change them to the current status and if I keep the computer on all day it's fine, but when I shut it down I have to go through the same process.
Any help is greatly appreciated.
PC Specs.
W2000 pro.
Asus A7V MB
AMD 2.0 cpu
512 Ram