July 13, 2009
and here is a weird situation:
I got a friend's notebook (acer aspire 4810tz) with a lot of problems, mostly software after a lot of infections. Had it restored with its factory cds and re-install many typical utilities. All these procedures of course, while on ac power. Immediatelly after testing on battery, the notebook hangs and this happens every single time. Sometimes cant even load windows and crashes totally. On ac power it works just fine for many hours. OS is win 7, home premium 64 bit and the installed applications are typical (ninite apps plus 4-5 more general utilities), so I could say windows installation is quite light.
My first thought was a faulty hardware issue like battery issue or motherboard etc. But spent more time to find out what really happens. After diagnosics tools found nothing, and windows utilities (winutilities, glary) did not solve the problem, I thought to boot with a linux live cd just on battery. To my surprise, it is working fine!
So the problem is into windows and not hardware.
I googled the situation and read many similar stories. Most of them were pointing hardware problems which is not the case (pitty that many people are mislead towards that 'easy” outcome). Tried a couple of solutions without success. (note: BIOS has no power options at all, typical to many notebooks). The only tip that I found somewhere and worked also for me, was to disable the 'Microsoft ACPI-Compliant Control Method Battery' device.
Indeed the notebook did not crash like that, but the logical new problem is that now, there is no way to see the level of battery, nor be warned when its about to run out (and manufacturer's power management soft is not working too).
I tried many third party battery tools but none could recognise the battery, because they are all based to 'Microsoft ACPI-Compliant Control Method Battery' device.
My options are the following:
1) Re-install again with the restore CDs and check whether the problem remains before any other applications. I am afraid it will not help cause I haven't installed anything “strange”.
2) Leave it as it is and live with the problematic situation with 'Microsoft ACPI-Compliant Control Method Battery' disabled or uninstalled.
3) Install Win XP and forget Win 7, 64bit. There are official drivers and I suspect it will be fine.
Before I apply probably option no.3, I thought to share with you all these details and ask for any further thoughts you may have, that I could give them a try…
October 22, 2008
I don't know the solution to your problem, but was BatteryBar (http://osirisdevelopment.com/BatteryBar/) one of the third party battery tools you tried? If not you may want to see if that will work.
July 13, 2009
Thanks for your feedback Ashraf.
Yes, it was one of the 5-6 tools I tested. None worked with microsoft's disabled battery device.
BTW, BatteryBar was very good cause has much info and is very light, but I was more impressed by BatteryCare ( http://batterycare.net/en/index.html ) which offers more battery optimizations! Perhaps its worth to check out as a general utility for notebooks.
More notes to my problem:
I had bios v.1.30 and before I post now, I did the upgrade to v.1.35.
Battery problem is still here, right after the 1st unplug.
Windows were already fully updated (1st thing I do after initial OS installation) and Acer's special updater has no updates.
Let me note also that the notebook hangs without any blue screen, so I cannot study any dump files as there are none created.
I know this is a rare problem and whatever I do (after Christmas as I
will be out of town for a week or so), I will inform the forum so that
there will be another recorded case available to future readers.
meantime, all ideas are welcomed and I will be meditating about this too
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