date and time reset after power cut

panesaar · 10-11-2007

Hi, I have a problem which I hope someone can solve for me. Every time we have a power cut I have to reset the date and time on my pc. I have changed the CMOS battery twice but the problem is still there, has anyone any other ideas how to solve this?

WinCrazy · 10-11-2007

Hi panesaar,

A UPS (Uninterruptible Power Supply) will prevent this problem.

I suspect that the power supply within your PC is not powering off gracefully when the power is cut. There may be "spikes" of power during the cut-off that the power supply is passing through to the motherboard that is corrupting the BIOS time settings and other settings, too, perhaps.

If you have a desktop PC you should/might be able to replace the supply for a good quality one for less than $50 US.

merlin · 10-11-2007

Also may I add, as I had this problem in my new box..

Make sure the jumper on your motherboard is seated correctly.. If you look near the CMOS battery there should be a little pastic jumper.. Make sure it is on the left 2 pins instead of the right 2 pins

madmatt2006 · 10-12-2007

Originally Posted by WinCrazy

Hi panesaar,

A UPS (Uninterruptible Power Supply) will prevent this problem.

I suspect that the power supply within your PC is not powering off gracefully when the power is cut. There may be "spikes" of power during the cut-off that the power supply is passing through to the motherboard that is corrupting the BIOS time settings and other settings, too, perhaps.

If you have a desktop PC you should/might be able to replace the supply for a good quality one for less than $50 US.

Hi

A UPS is great for power outs/spikes but in this case I'd bet it's the jumper like merlin mentioned and if it is in the right position it will be a mainboard problem I have seen the bios drain batteries before.

WinCrazy · 10-12-2007

Only some hand-built desktop motherboards will have a BIOS settings reset jumper.

What manufacturer and model is your PC ?

10-11-2007	#1
panesaar New Poster Join Date: Oct 2007 Posts: 1	date and time reset after power cut Hi, I have a problem which I hope someone can solve for me. Every time we have a power cut I have to reset the date and time on my pc. I have changed the CMOS battery twice but the problem is still there, has anyone any other ideas how to solve this?

10-11-2007	#2
WinCrazy Silver Member Join Date: Sep 2007 Location: Ambler, PA USA Posts: 151	Re: date and time reset after power cut Hi panesaar, A UPS (Uninterruptible Power Supply) will prevent this problem. I suspect that the power supply within your PC is not powering off gracefully when the power is cut. There may be "spikes" of power during the cut-off that the power supply is passing through to the motherboard that is corrupting the BIOS time settings and other settings, too, perhaps. If you have a desktop PC you should/might be able to replace the supply for a good quality one for less than $50 US. __________________ WinCrazy

10-11-2007	#3
merlin Trusted Security Analyst Join Date: Jul 2005 Location: NW Indiana Posts: 2,891 PC Experience: Comnputers Fear Me..	Re: date and time reset after power cut Also may I add, as I had this problem in my new box.. Make sure the jumper on your motherboard is seated correctly.. If you look near the CMOS battery there should be a little pastic jumper.. Make sure it is on the left 2 pins instead of the right 2 pins __________________ UBCD...SpeedFan...PreWork...AfterWork...NukeDisk...Free Online Virus Scanner...Cpu-Z

10-12-2007	#4
madmatt2006 PC Dinosaur Join Date: Dec 2006 Location: Shepparton Posts: 3,666 PC Experience: The Gun	Re: date and time reset after power cut Originally Posted by WinCrazy Hi panesaar, A UPS (Uninterruptible Power Supply) will prevent this problem. I suspect that the power supply within your PC is not powering off gracefully when the power is cut. There may be "spikes" of power during the cut-off that the power supply is passing through to the motherboard that is corrupting the BIOS time settings and other settings, too, perhaps. If you have a desktop PC you should/might be able to replace the supply for a good quality one for less than $50 US. Hi A UPS is great for power outs/spikes but in this case I'd bet it's the jumper like merlin mentioned and if it is in the right position it will be a mainboard problem I have seen the bios drain batteries before. __________________ PCHELPHQ

10-12-2007	#5
WinCrazy Silver Member Join Date: Sep 2007 Location: Ambler, PA USA Posts: 151	Re: date and time reset after power cut Only some hand-built desktop motherboards will have a BIOS settings reset jumper. What manufacturer and model is your PC ? __________________ WinCrazy

Similar discussions...
Thread	Thread Starter	Forum	Replies	Last Post
Reset Startup Problem	john-b	Unfinished Threads	5	07-16-2007 11:34 AM
[Answered] Adding time / date to webpage.	math4043	Web Design	3	11-30-2006 05:40 PM
Fixed: Date an Time Properties Problem	Krizalis	Windows XP/2000	7	08-21-2006 05:30 PM

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode