Hi folks, on all my motherboards I found same way to connect external battery: pin 1 - external battery + pin 2 - internal battery + pin 3 - connection to CMOS pin 4 - ground Usally You'll find a jumper connecting pins 2 and 3. For use of an external battery this jumper has to be removed. If You have to "trash" all CMOS settings for some reason connect pins 3 and 4. I also found a protection diode on my motherboard which protects CMOS from a wrong plugged external battery. BTW, I prefer an other way to test a battery. Measuring the voltage is not a good way since a voltmeter causes only a very small current. It's better to measure the short circuit current for one or two seconds (not more!!!). A new size AA battery should have about 5 amps or more. Batteries with 1 amp or less are scheduled for the trash can. Batteries with about 2 amps are very good for remote controls, alarm clocks or CMOS :-). You'll find them in small battery driven lamps with "weak" batteries :-). WARNING!!!!! Don't check accumulators this way!!!!! HTH Regards Joerg Neu: Voice/Fax Mailbox 0180/505253996299 -- This mail was written by user of Arachne, the Ultimate Internet Client -- Arachne V1.65, NON-COMMERCIAL copy, http://arachne.cz/ _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
