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#1
Acer 5750g Odd Behaviour
I have an interesting issue with my Acer 5750g. The issue is by no means a problem to me, and I don't care if it is not solved, but I have always been a bit curious as to what causes it.
I have had the laptop for about 4 years now I think? And the issue started after about 1 year.
The laptop emits an audible beep when ever the AC adapter is connected or disconnected.
Sometimes the laptop would emit this beep as if the adapter had been disconnected, and then the power LEDs would flash. The laptop would not charge in this state despite the AC adapter being connected and if left for a while, the plug that connects to the laptop would become hot. Simply disconnecting and reconnecting the AC adapter would return the laptop to its usual state.
The issue did grow to be a minor annoyance to me in time, as sometimes I would leave the laptop on overnight to download something, only to find that the issue had occurred, battery had depleted and the laptop had shutdown.
Having thought that this issue might be with the AC adapter, I swapped mine with a friends. (He had almost the same model, voltage, amperage and plugs all matched) The problem completely disappeared, and he never had any problem like I had had.
About 2 months ago however, it started to happen again.
I just finished replacing the hard drive and reinstalling everything due to the old hard drive failing, when something new happened. I use CoreTemp to keep an eye on my temperatures, and when the problem happened again, CoreTemp began to spam some error messages.
Here you can see the sheer amount of them:
The messages were appearing about 1 per second.
So does this perhaps mean the the issue is related somehow to the CPU? Perhaps a faulty temperature sensor? Or something to do with the CPU voltage regulation?
Anyway, like I said at the start, I am not really bothered if it is fixable or not, I am more interested in what causes it and why.