?
Solved

Clock stopping when computer is off

Posted on 2006-11-15
4
Medium Priority
?
235 Views
Last Modified: 2010-04-26
i have a P4c800 MB and when my computer is off the clock does not work so the day never advances. Could this be my battery? I checked the voltage and got 3.1 as a reading. Then I checked another computer that works fine and I get 2.9 Volts on the lithium battery. I put the battery back but still have the clock problem. What should the voltage be of this battery and is this the problem? This is a new board which was installed and working fine. Could this cause windows XPpro to freeze during an installation??
0
Comment
Question by:PawloA
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 8

Expert Comment

by:saw830
ID: 17950084
Hi PawloA,

I've seen this on some laptop motherboards, but I expect that it could happen on desktop models as well.

To fix it I unplugged the power cord.
Removed the BIOS battery (the button battery on the motherboard)
Wait a while (15 minutes)
Install the battery
reconnect power cable
boot, but intercept to the bios config utility
find and run a bios reset (on some motherboards this is a jumper proceedure and not a bios screen proceedure)

Hope this helps,
Alan
0
 
LVL 69

Expert Comment

by:Callandor
ID: 17950773
The CMOS battery should be 3v, and a faulty battery can sometimes mess up the clock circuit.  Even though it was a new board, the board may have been sitting on a shelf for along time.  The batteries are cheap to replace and last a long time.
0
 
LVL 32

Accepted Solution

by:
willcomp earned 750 total points
ID: 17971824
Since battery is reading 3.1V, it should be good.  3.0V or greater indicates a good battery.

Given the low cost, certainly wouldn't hurt to change battery.  Also check and ensure battery is seated tightly, is making good contact, and there are no broken parts in battery holder.

Real time clock is probably OK if time is accurate on AC power.
0
 
LVL 2

Expert Comment

by:rcatach
ID: 17981312
I believe it is the mobo I would replace it (, but this would be a last resort). Have you tried resetting the bios as Alan suggested?
0

Featured Post

Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In the modern office, employees tend to move around the workplace a lot more freely. Conferences, collaborative groups, flexible seating and working from home require a new level of mobility. Technology has not only changed the behavior and the expe…
This article outlines why you need to choose a backup solution that protects your entire environment – including your VMware ESXi and Microsoft Hyper-V virtualization hosts – not just your virtual machines.
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
Suggested Courses
Course of the Month14 days, 12 hours left to enroll

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question