Motherboard, CMOS battery, and recharge...
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Posted by Ant on June 3, 2007, 7:51 am
Please log in for more thread options A few days ago, I noticed powering on my computer showed MSI splash screen (had this disabled) and then it went to BIOS screen to say "CMOS Checksum error. Defaults loaded." I was hoping it was a hiccup. I powered off the machine off and on to see if it remembers my settings, nope. I had to reconfigure it (annoying). The next day, it happened again. I usually turn off my machine (including its SeaSonic 650 watts PSU) when I go out to work (11-12 hours long) or gone for a long time when the machine is unused. I did try turning off my machine without turning off the PSU for about five minutes. Turning on did not show resetted CMOS. I have NOT tried leaving my PSU on when the computer is off. I am not sure if that is going to keep my CMOS settings intact or charge the battery. I usually like to turn everything off completely (no lights and stuff) to avoid those small energy usages. Is the motherboard's battery is totally dead or is it just bad luck? I only had this MSI K8N NEO4-F (MS-7125; PCB v3.0) motherboard (NVIDIA nForce4) motherboard before Christmas 2006! Aren't CMOS batteries supposed to last for years? Thank you in advance. -- "We're all ants. I'm a glittery little ant." --Alanis Morissette /\___/\ / /\ /\ \ Phillip (Ant) @ http://antfarm.ma.cx (Personal Web Site) | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net \ _ / Remove ANT from e-mail address: philpi@earthlink.netANT ( ) or ANTant@zimage.com Ant is currently not listening to any songs on his home computer. | |||||||||||||
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Posted by Jan Alter on June 3, 2007, 8:42 am
Please log in for more thread options Yes, batteroes should last for years, but wouldn't it make sense at this point to simply take out the battery and test it with a VOM to see what its got left before arguing that it's the battery in the first place? It should read 3V if it's in good shape. -- Jan Alter bearpuf@verizon.net or jalter@phila.k12.pa.us | |||||||||||||
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Posted by Ant on June 3, 2007, 9:25 am
Please log in for more thread options On 6/3/2007 5:42 AM PT, Jan Alter wrote:
>> A few days ago, I noticed powering on my computer showed MSI splash screen
>> (had this disabled) and then it went to BIOS screen to say "CMOS Checksum >> error. Defaults loaded." >> >> I was hoping it was a hiccup. I powered off the machine off and on to see >> if it remembers my settings, nope. I had to reconfigure it (annoying). The >> next day, it happened again. I usually turn off my machine (including its >> SeaSonic 650 watts PSU) when I go out to work (11-12 hours long) or gone >> for a long time when the machine is unused. >> >> I did try turning off my machine without turning off the PSU for about >> five minutes. Turning on did not show resetted CMOS. I have NOT tried >> leaving my PSU on when the computer is off. I am not sure if that is going >> to keep my CMOS settings intact or charge the battery. I usually like to >> turn everything off completely (no lights and stuff) to avoid those small >> energy usages. >> >> Is the motherboard's battery is totally dead or is it just bad luck? I >> only had this MSI K8N NEO4-F (MS-7125; PCB v3.0) motherboard (NVIDIA >> nForce4) motherboard before Christmas 2006! Aren't CMOS batteries supposed >> to last for years? >> >> Thank you in advance. >
> Yes, batteroes should last for years, but wouldn't it make sense at this > point to simply take out the battery and test it with a VOM to see what its > got left before arguing that it's the battery in the first place? It should > read 3V if it's in good shape. Is there a way to check via the computer like those hardware sensors? Or do I need to verify it via a physical battery reader device (need to get one)? -- "... Our world is not an ant farm!" --Duncan MacLeod (Highlander Season 3 Finale Part II) /\___/\ / /\ /\ \ Phillip (Ant) @ http://antfarm.ma.cx (Personal Web Site) | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net \ _ / Remove ANT from e-mail address: philpi@earthlink.netANT ( ) or ANTant@zimage.com Ant is currently not listening to any songs on his home computer. | |||||||||||||
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Posted by Jan Alter on June 3, 2007, 11:31 am
Please log in for more thread options > On 6/3/2007 5:42 AM PT, Jan Alter wrote:
> >>> A few days ago, I noticed powering on my computer showed MSI splash
>>> screen (had this disabled) and then it went to BIOS screen to say "CMOS >>> Checksum error. Defaults loaded." >>> >>> I was hoping it was a hiccup. I powered off the machine off and on to >>> see if it remembers my settings, nope. I had to reconfigure it >>> (annoying). The next day, it happened again. I usually turn off my >>> machine (including its SeaSonic 650 watts PSU) when I go out to work >>> (11-12 hours long) or gone for a long time when the machine is unused. >>> >>> I did try turning off my machine without turning off the PSU for about >>> five minutes. Turning on did not show resetted CMOS. I have NOT tried >>> leaving my PSU on when the computer is off. I am not sure if that is >>> going to keep my CMOS settings intact or charge the battery. I usually >>> like to turn everything off completely (no lights and stuff) to avoid >>> those small energy usages. >>> >>> Is the motherboard's battery is totally dead or is it just bad luck? I >>> only had this MSI K8N NEO4-F (MS-7125; PCB v3.0) motherboard (NVIDIA >>> nForce4) motherboard before Christmas 2006! Aren't CMOS batteries >>> supposed to last for years? >>> >>> Thank you in advance. >>
>> Yes, batteroes should last for years, but wouldn't it make sense at this >> point to simply take out the battery and test it with a VOM to see what >> its got left before arguing that it's the battery in the first place? It >> should read 3V if it's in good shape. >
> Is there a way to check via the computer like those hardware sensors? Or > do I need to verify it via a physical battery reader device (need to get > one)? Well rather than be surprised that you don't have one lieing around you could take a flashlight bulb and one wire and connect the battery with the bulb and wire to see if the bulb will light. Now please don't tell me you don't have a flashlight (that works with 2 C or D cell batteries). I'm not aware of any sensors on the mb or software that gives you the health of the battery. -- Jan Alter bearpuf@verizon.net or jalter@phila.k12.pa.us | |||||||||||||
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Posted by Roby on June 3, 2007, 3:32 pm
Please log in for more thread options Jan Alter wrote:
>> On 6/3/2007 5:42 AM PT, Jan Alter wrote:
>> >>>> A few days ago, I noticed powering on my computer showed MSI splash
>>>> screen (had this disabled) and then it went to BIOS screen to say "CMOS >>>> Checksum error. Defaults loaded." >>>> >>>> I was hoping it was a hiccup. I powered off the machine off and on to >>>> see if it remembers my settings, nope. I had to reconfigure it >>>> (annoying). The next day, it happened again. I usually turn off my >>>> machine (including its SeaSonic 650 watts PSU) when I go out to work >>>> (11-12 hours long) or gone for a long time when the machine is unused. >>>> >>>> I did try turning off my machine without turning off the PSU for about >>>> five minutes. Turning on did not show resetted CMOS. I have NOT tried >>>> leaving my PSU on when the computer is off. I am not sure if that is >>>> going to keep my CMOS settings intact or charge the battery. I usually >>>> like to turn everything off completely (no lights and stuff) to avoid >>>> those small energy usages. >>>> >>>> Is the motherboard's battery is totally dead or is it just bad luck? I >>>> only had this MSI K8N NEO4-F (MS-7125; PCB v3.0) motherboard (NVIDIA >>>> nForce4) motherboard before Christmas 2006! Aren't CMOS batteries >>>> supposed to last for years? >>>> >>>> Thank you in advance. >>> >>> Yes, batteroes should last for years, but wouldn't it make sense at this >>> point to simply take out the battery and test it with a VOM to see what >>> its got left before arguing that it's the battery in the first place? It >>> should read 3V if it's in good shape. >>
>> Is there a way to check via the computer like those hardware sensors? Or >> do I need to verify it via a physical battery reader device (need to get >> one)? >
The flashlight bulb method is far better than a vom test: "dead" batteries
> > > Well rather than be surprised that you don't have one lieing around you > could take a flashlight bulb and one wire and connect the battery with the > bulb and wire to see if the bulb will light. Now please don't tell me you > don't have a flashlight (that works with 2 C or D cell batteries). > > I'm not aware of any sensors on the mb or software that gives you the > health of the battery. > often show full/nearly full terminal voltage when tested with a voltmeter (which draws nearly no current). Real battery testers connect a resistor across the battery to draw some test current and read the voltage across it. I have a cheapy tester from Radio Shack that serves my needs. The battery SHOULD last several years. Yours might have been defective or even beyond its useful age before it was installed. Why not just put in a new one while you're in there? If the replacement cell suffers premature death, you may have a leaky capacitor on the motherboard: hard to find, hard to replace. Consider building an off-board replacement - two AA cells in a battery clip mounted somewhere inside the case and connected to the external battery pins on your m/b. Remove the original battery. BE CERTAIN you get the polarity of the new battery correct! I had a m/b that would drain a CR2032 in about 6 weeks. Two AA's lasted about two years. | |||||||||||||
>
> A few days ago, I noticed powering on my computer showed MSI splash screen
> (had this disabled) and then it went to BIOS screen to say "CMOS Checksum
> error. Defaults loaded."
>
> I was hoping it was a hiccup. I powered off the machine off and on to see
> if it remembers my settings, nope. I had to reconfigure it (annoying). The
> next day, it happened again. I usually turn off my machine (including its
> SeaSonic 650 watts PSU) when I go out to work (11-12 hours long) or gone
> for a long time when the machine is unused.
>
> I did try turning off my machine without turning off the PSU for about
> five minutes. Turning on did not show resetted CMOS. I have NOT tried
> leaving my PSU on when the computer is off. I am not sure if that is going
> to keep my CMOS settings intact or charge the battery. I usually like to
> turn everything off completely (no lights and stuff) to avoid those small
> energy usages.
>
> Is the motherboard's battery is totally dead or is it just bad luck? I
> only had this MSI K8N NEO4-F (MS-7125; PCB v3.0) motherboard (NVIDIA
> nForce4) motherboard before Christmas 2006! Aren't CMOS batteries supposed
> to last for years?
>
> Thank you in advance.
> --
> "We're all ants. I'm a glittery little ant." --Alanis Morissette
> /\___/\
> / /\ /\ \ Phillip (Ant) @ http://antfarm.ma.cx (Personal Web Site)
> | |o o| | Ant's Quality Foraged Links (AQFL): http://aqfl.net
> \ _ / Remove ANT from e-mail address: philpi@earthlink.netANT
> ( ) or ANTant@zimage.com
> Ant is currently not listening to any songs on his home computer.