Battery Voltage Alert - Power on issues after replacement

harringtonda · 11-21-2008, 04:26 PM

I am receiving an Alert on bootup that my "System battery voltage is low." I understand that this is usually because my cmos battery needs to be replaced. So I popped the old one out and put a new CR2032 in it's place. And for some reason I am still getting the same message.

Also, even more frustrating, is the fact that after I power off my system (having pressed f1 to bypass the error), I am unable to power it on again. Pushing the power button on the front of the system just simply does nothing. It seems the only way to get it working again is to unplug the power connector from the motherboard and plug it back in. Either that, or popping the battery out and putting it back in again. Once I do that, I can then press the power button and I am able to get back into the system, although I still receive the same battery voltage alert.

However, if I simply Restart the system, as opposed to powering off and then powering on again, it works without a hitch.

Any thoughts? I have a Dell Precision 380 Workstation.

dai · 11-21-2008, 08:05 PM

you may have got a crook battery try another one
try a cmos reset
cmos reset
turn the computer off
remove the power lead from the back
take the side off
remove the cmos battery
move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2
reinsert the battery
put the side on
replug in the power lead
boot the computer

there can be 2 solder points you touch with a screwdriver
2 pins you touch with a screwdriver or use a jumper
a cmos clear switch or button
there will be a diagram and instructions in your manual

check your 12v voltages see if the bios gives the reading

11-21-2008, 04:26 PM	#1 (permalink)
harringtonda Registered User Join Date: Nov 2008 Posts: 1 OS: XP	Battery Voltage Alert - Power on issues after replacement I am receiving an Alert on bootup that my "System battery voltage is low." I understand that this is usually because my cmos battery needs to be replaced. So I popped the old one out and put a new CR2032 in it's place. And for some reason I am still getting the same message. Also, even more frustrating, is the fact that after I power off my system (having pressed f1 to bypass the error), I am unable to power it on again. Pushing the power button on the front of the system just simply does nothing. It seems the only way to get it working again is to unplug the power connector from the motherboard and plug it back in. Either that, or popping the battery out and putting it back in again. Once I do that, I can then press the power button and I am able to get back into the system, although I still receive the same battery voltage alert. However, if I simply Restart the system, as opposed to powering off and then powering on again, it works without a hitch. Any thoughts? I have a Dell Precision 380 Workstation.

11-21-2008, 08:05 PM	#2 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 53,582 OS: vista 32x 64x ultimate retail	Re: Battery Voltage Alert - Power on issues after replacement you may have got a crook battery try another one try a cmos reset cmos reset turn the computer off remove the power lead from the back take the side off remove the cmos battery move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2 reinsert the battery put the side on replug in the power lead boot the computer there can be 2 solder points you touch with a screwdriver 2 pins you touch with a screwdriver or use a jumper a cmos clear switch or button there will be a diagram and instructions in your manual check your 12v voltages see if the bios gives the reading __________________