Unusual problem involving epm-dm.exe (Acer's bundled e-power management software)

carnatic

New Member
System : Acer Aspire 3613WLMi
1.5GHz Celerom M processor
2GB DDR2 RAM (recently upgraded from 512MB)
40GB HD

I have been having battery problems with my laptop for almost a year now (since before the memory upgrade I mentioned). Basically the computer does detect that there is a battery, but displays its charge as unknown. The battery does work though, I can use my computer without AC power, I just don't know when it's going to cut out, and I have to turn off any kind of 'auto-hibernate' modes, as it will hibernate as soon as I unplug the AC. I don't think it always charges properly though, as while I sometimes get about 1.5 - 3 hours of life from the battery, sometimes I get less than 10 minutes.

I can't remember what changes I had made before the problem started as it was a while before I noticed it, and had never been able to work out what was causing it. It's not the battery itself as the same problems exist if I use a different battery.

In the last few months though I have noticed a new factor to the problem. Sometimes everything is working OK and I get proper battery detection (and this is usually accompanied by a proper battery life). I installed Auslogics Boostspeed to help me identify the cause whenever my computer is running slow and discovered that sometimes the programme epm-dm.exe is placing a very high load on my CPU (50-80%, I can be running software such as Photoshop and still find that it is epm-dm that is gobbling up most of my CPU speed). Whether or not epm-dm is going to be like this seems to be decided on start-up and it remains in the same state for the rest of that session.

epm-dm.exe is part of Acer's e-Power Management suite, which is the proprietary way to set power settings on Acer PCs. I have noticed that it using too much of my CPU coincides with my battery problems; and if epm-dm is normal then so is my battery.

I haven't been able to work out how to address this though. I tried upgrading to the latest version of epm-dm and this didn't work, and I tried preventing it from starting up with my system and all this does is guarantee that I will have battery problems. I'm all out of ideas.

Any help would be greatly appreciated. Sorry this post is so long :S
 
Use the msconfig utility to disable all of Acer's utilities at startup and see if that fixes the issue. Is this battery a replacement battery that may not have been bought from Acer? You may want to try updating the bios to get proper identification on the battery. I had a dell that couldn't recognize the battery so i did a bios update which fixed the issue.
 
Thanks...

well I tried disabling just epm-dm, and that didn't work, but I haven't tried disabling all Acer programmes yet, so I'll give that a go first.

The battery I've been using is a different one from the original. But the same problem exists when I'm using the original battery (it's in now). The original has a lower maximum charge, part of this is inherent, and partly because I got the laptop second-hand from my Mum and she would leave it plugged in 24/7 never using the battery, which apparently shortens the battery life.

I will give upgrading the bios a go though. The version I have is a couple of point-releases down from the latest. Though the read-me with the latest version only seems to mention some issue with the Intel logo.

I've just remembered I don't have the 40GB HD my laptop came with, but a 150GB one instead. I think the problem existed before I installed the new hard-disc though.
 
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