Hello there!

I'm not entirely sure whether this is a hardware or software problem. In fact I am a little bit stumped! What happens is, my laptop will suddenly power off with no warning. No BSOD- it acts just as if someone had suddenly pulled the power. I've had this problem for a couple of weeks. At first it was only happening at a certain point in a certain dungeon in World of Warcraft. In fact, it almost always still happens at that point, but it is now sometimes happening at other times too. It does not seem to be related to the length of TIME the computer has been on, or the intensity of the ACTIVITY (I've tried running programs like HeavyLoad and this caused no issue, and in WoW raids are a bigger more intensive version of dungeons and I have only crashed once in maybe 20 hours of raiding since the issue began, but I am crashing 80% of the time in the aforementioned dungeon, always at the same boss).

When this happens:

- The laptop has a full battery, and is also plugged in.
- I am pretty sure the temperature is within normal limits- because the crashes are sometimes random I am not always looking at the temperature monitors at the RIGHT time, but I have noticed they are reading a comfortable 80 degrees (cpu) and 56 (gpu) before a crash in the dungeon I mentioned.
- So far it has happened under the following conditions: Whilst playing WoW in the aforementioned dungeon (several times), Whilst raiding in WoW (once), Whilst opening Minecraft, just after shutting down WoW (once), Immediately after restarting when I pulled the power cable out to see if the battery was dead after the first time it crashed (once) (and when I restarted it again the battery was full).
- The fans are usually running audibly, and the laptop is quite warm to touch, but have felt it far hotter during raids etc.

So far I have:

- Opened it up and cleaned it thoroughly. There is no visible dust on the fans (tbh there wasn't much before I cleaned it).
- Updated my graphics drivers.
- Reinstalled WoW (initially I thought the problem was isolated to WoW, but now I don't think it is).


Any ideas would really be appreciated, as I'm not quite sure what to look at next!

Thanks!

Oh btw, it's a 3 year old Qosmio X500-165 running Windows 7 (64bit) if it helps!
Where are you GETTING the Temp readings from ? ?
Realtemp for cpu and a program called GPU Temp for gpu.