Battery on Pc6300

[Juan Castillo]

Hello folks!

I need some help.
	
	I have an AT&T6300 with VDC750, 319 monitor, logitech mouse, flight 
joy stick and 2 hard drives. My problems are as follow.
	Few moths ago I noticed my clock started to run slow. Then last month 
my monitor will make a loud popping sound and the screen would shrink quite 
small. Now today I found the Pc with a screen saying "parity error" I rebooted
the system, and it passed diagnostics until it gets to the RT Clock, it says
"RT Clock fail" and the next message "RT Clock Pass" then it goes on as normal 
except that my clock is going very very fast I'll reset the time and date but no luck, it will display a time in the high 90's and the date in the 2000's.

Any help will be appreciated!!

Juan

P.S. Also I would like to get the proccedure to change the clock battery.