Question about HP Pavilion a350n PC Desktop
I have a hp Pavillion desk top computer model a350n. The clock in the computer will not maintain correct time and date if power is removed from computer and then repowered the next day. Time reverts to 1/1/2001 1:00 am. If power remains to computer after computer is turned off date and time are correct on startup. What is the cause? Is there a cmos battery inside the computer? Would a dead cmos battery cause this? Would there be other obvious problems if the battery was dead? Where would it be located inside?
Posted by Anonymous on
Yes it very probably is the CMOS battery, time is kept counting electric pulses, when the computer is turned on there is power and memory to do this, but when it is turned off it relays on the battery to keep this an some other settings, maybe you're receiving a warning at boot time. Check this guide for replacing such batteries:
Posted on May 15, 2010
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Posted on Jan 02, 2017
There is a wafer lithium battery that maintains the power onboard the motherboard to maintain settings. The batter is located on the top side about midboard. Open the side of the computer case so that you have access to the motherboard. Before you remove the battery, you may want to carefully vacuum out the dust in the case and then use a can of air (available from Radio Shack or comuter supply store) to blow out the remaining dust.
You will need a replacement CR2032 Lithium batteery.
To replace the battery:
1 Remove the side panel that has the thumbscrews. See page 99.
2 Gently lay the PC on its side.
3 Remove any cabling, if necessary, to reach the battery.
4 Remove any memory modules, if necessary, to reach the battery.
5 With a flat screwdriver, press the metal latch that holds the battery in its
socket away from the battery. The battery will pop out.
6 Install the new CR2032 battery in the socket, with the positive (+) side
This should take care of your lost date.
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Posted on Mar 22, 2010
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The first step is to open the date and time dialog box located on the task bar on your computer.
Should be on the lower right side of the task bar.
Double click time or right click to open the dialog box.
The date and time box should open on the desk top.
Now click the Internet time tab.
Check the box that says automatically synchronize with an Internet time server.
Then you will see a list of servers.
Select a server from the drop down list.
Check apply and close the box.
Now every time you go on the Internet Windows will automatically set the computer clock to the right time.
Now, there is no need to worry about adjusting the computer clock again!
Hope this helps.
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Directions for Desk Clock - Without the
change the Temperature:
the "S" button once (this will change from Fahrenheit to Celsius)
change the Time and Date:
the "M" button once to change time to or from military time
the "S" button once to change the hour
the "S" button again to change the minute
the "S" button again to change the year
Changing the year will also change the day of the week
the "S" again to change the month
the "S" again to change the date
set the Alarm:
the button with an alarm clock on it
the "S" button once
A flashing 12:00 should appear
the arrows to set the hour
the "S" button again to set the minutes
the "S" button again to change the "ring" of the alarm
There will ne a number below the time the alarm is set for
Use the arrows to advance through the options
turn the alarm functions completely off:
the button with the alarm clock on it
the "S" button five times
When three dashes appear where the time would be, it is off.
the "M" button three times to get back to the main clock function
clear the secondary clock:
can set two different times on the clock, so if you travel frequently you can
have a home time with alarm and a travel time with alarm saved and ready to
go. There is a primary time, the one you normally see on the clock with
an alarm clock function after it. There is also a secondary time with an
alarm function after it.
the secondary clock will make it easier to know when you get back to the
primary clock function.
the "M" button three times
the "S" button seven times
When three dashes appear where the time would be, it is off
the "M" button two more times
you are Done!
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