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Acer 1690 Running Slow with battery in, Mouse & Keyboard not responding all the time

Posted on 2008-10-05
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Last Modified: 2013-11-17
Hello Everyone

I have a Acer Aspire 1690 laptop.

When the battery is plugged in the laptop is running really slow.  Also the on board mouse & keyboard is either not responding or is really slow.  Bad lag.

I can use a USB keyboard & mouse no problems.

I've found if i remove the battery the on board mouse & keyboard work fine and the slowness is also gone.

I'm updated the bios still no help.

Upgraded all windows updates & service packs.

Removed the Acer management applications.  Haven't tried reinstalling them yet.

The battery is stuffed only get max 10minutes of life out of it.  Not sure if this is the problem or not.  

I've never seen this sort of problem before, so i'm reluctant to purchase a new battery just in case it doesn't fix it.

Anyone got any ideas?

Thanks in advance.
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Question by:Up2DateTech
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Author Comment

by:Up2DateTech
ID: 22646170
Also something else.

When the laptop has the battery in and is running slow.  When i shutdown it always wants to end task on Explorer.exe & HiddenFaxWindows.

If i uninstall the Windows Fax service is will then stop on Explorer.exe & Lan Connections.
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Expert Comment

by:rid
ID: 22647427
1. Check BIOS setup if there's a "Calibrate battery" option, or similar. If so, run it. Otherwise, check battery time after booting with a bootable CD (XP install CD or a Live CD like Knoppix), just to eliminate possibly corrupt power management software.

2. Check function of mouse/kb in safe mode, battery in.

3. Run a thorough virus and malware scan.

4. Check your startup items and running processes, make sure no unwanted entries are found. See if there is something that runs only when the unit runs on battery and investigate what it is.

/RID
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Accepted Solution

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Up2DateTech earned 0 total points
ID: 22647445
Looks like i have fixed the problem.

I updated the aspire bios, to the latest bios.  This didn't work gave me a black screen on turning on the laptop.  Did a bios recovery with the floppy disk and a different bios version.  This version stated it was for Vista.

Boot laptop same problem.

Rebooted laptop without battery.  Removed all Acer tools & reinstalled them.  (i had done this before and it didn't make any difference)  
Rebooted laptop again without battery.  Once in i pushed in the battery.

Opened up the Acer power management software, pull out the power cable.  The laptop went to the battery profile.  I created a new battery profile and moved everything to full.

Plugged power back in, and out to test profile is set.

Turned laptop off.  Then on again.  Now everything seems to be ok.  Rebooted several time, turned off & on.  Still ok.

This has been days of work.  The power management must have been stuck somehow in the hardware.  Reset the profile i think fixed it.

Anyhow i'm happy now.

Thanks for help everyone.
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Expert Comment

by:de_stig
ID: 24476359
Hello Up2date Tech,

Thanks for helping me out!. I had exactly te same problem with exactly te same PC. How can I check if the battery is still OK (most probably it is not: its more than 3 years old now)


De-Stig
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