Unexpected Shutdown

Hi,

I was using my laptop for general browsing, when all of a sudden, it turned off. At first, I tried turning it back on, but it wouldn't, so I plugged in the charger and it turned on. It then reported that windows hadn't shutdown safely etc.

The thing is though, I checked the battery levels after re-starting, and it was at 25%. I have set my power options so that the laptop goes into hibernate when the battery is at 10% and at Do Nothing when it is at 25%.

So please can someone explain what happened?

richc46 said:

No one can tell you what happened, but we can offer educated guesses.
The first cause would be overheating. Do you know what the temps of your computer are during load.
Did you have a BSOD, did the screen turn blue?
SpeedFan - Access temperature sensor in your computer

No, there was no BSOD.

Just now I just let my laptop battery drain, until it hit critical level so that it would hibernate. But instead of hibernating, it just shut down as if the battery had fully gone. So I plugged in and re-started and the 'Windows did not shut down properly screen...' came up. I think this is what happened before. Can anyone tell me what the problem could be?

Anak said:

Hi,

The 2 most probable reasons could be:

• CPU overheating
• Power supply is going bad

To a lesser degree:

A failing memory or video card.

Do you notice the unit running hot to very hot?

According to this cnet review,
HP 2133 Mini-Note PC user ratings and Laptop user reviews and reviews - CNET Reviews two users have measured their units at 107, and 110° F.
This has led to motherboard failures.

The reviews also mention poor performance from the battery pack, can you obtain a known good one to see if it will re-create your situation?

Do you have an Ohm meter to take a reading of the battery voltage when this situation occurs? I would not trust the on board battery life indicator.

Batteries are known to show a resonable life, but once a certain point is reached they will drop out to zero voltage, and will not give enough power to shutdown properly.

Heat is also an enemy of batteries.

The 2133 is equiped with what is called DriveGuard if the unit is bumped or moved unexpectedly it will shutdown to save the HDD, but I do not think that is happening here.

Firstly, mate, I recently updated my graphics card driver, just to let you know.

Secondly, the laptop does get hot quite quick, after all it is a mini laptop.

Last year, the motherboard blew due to overheat, so HP replaced it whilst I was under warranty.

The DriveGuard only temporarily disables the HDD to prevent it from shock. So that can't be the reason.

Finally, running a HP Health Check shows that my battery has a 'good' status.

(A couple of months ago I remember letting my battery drain to critical level to see if it would hibernate, and it did. Don't know what is going on now.)

bigmck said:

pain55 said:

richc46 said:

No one can tell you what happened, but we can offer educated guesses.
The first cause would be overheating. Do you know what the temps of your computer are during load.
Did you have a BSOD, did the screen turn blue?
SpeedFan - Access temperature sensor in your computer

No, there was no BSOD.

Just now I just let my laptop battery drain, until it hit critical level so that it would hibernate. But instead of hibernating, it just shut down as if the battery had fully gone. So I plugged in and re-started and the 'Windows did not shut down properly screen...' came up. I think this is what happened before. Can anyone tell me what the problem could be?

When there is overheating, there is not a BSOD. It just turns off. Get the temperature program listed above and give it a try to find out if the problem is overheating.

Well, I tried the SpeedFan and it only shoes CPU usage, nothing else. Here is a screenshot:

bigmck said:

Do a search in Google for CPUID Hardware Monitor. It will show everything.

I ran the program and here is the screenshot: