Random power shut off?

[Roostervier]

Don't know if anyone has noticed, but I've been gone for a few days. Surprise surprise! My computer has something wrong with it again. Now, it randomly shuts off. At first it didn't happen as fast; I could get logged in and start a game, then it shuts off. Now I can't even boot! Now, I think it has something to do with the heat of my CPU. One part of the CPUs heatsink won't stay in (dammit for it not being the screw on kind! >:U), do you think that could be the problem? The heatsink can't do its job and the CPU overheats and auto shuts off? If so, I suppose I could super glue it or something... unless anyone has a better idea? I'd be very grateful, thanks for the help. Also, buying new cooling isn't really an option, and this one should suffice anyway.

[jahrain]

Random shut downs are 99% likely to be caused by overheating issues. If it won't boot after a few of them, your pretty much fuct as what ever component that was overheating, such as the CPU is probably fried.

[Roostervier]

I don't mean it won't boot, I mean it hardly gets passed it. Like, if I tried right now I might get to log in because of the temperature. If I tried again, it wouldn't get much farther than boot up. Anyway, thanks, I will try to get the heatsink to stay in the mobo better.

[Bastinka]

I just had a power outage for around 5 mins, but that has nothing to do with that.

[Abdurahman]

It happened to me two times, and both it was because of a faulty power supply. We both had the same problem. Try replacing your power supply. Im fairly certain that's the culprit.

[Snowy]

What power supply do you have? If you can only boot to login, I'd think it would be the heatsink not coming in correct contact with the processor.

[SnaFuBAR]

it's the heatsink/cpu. had the same problem with a laptop.

[Roostervier]

Thanks for the responses, I'm almost positive it's what Snaf said, the reason being that I have tried three PSUs. D:

[Patrickssj6]

It also could be that your sensor is corrupted...can you manually take the temperature at shut off?

You can turn off the sensor in the BIOS...but I don't recommend that unless your system is stable.

[Roostervier]

Well, I looked at the hardware monitor, and found something horrible. D:

The CPU temperature goes from 38 C to 48 C in 45 seconds. It continues to climb even after that, and it shuts off around 70 C. I don't know why it isn't getting cooled. Maybe I just need to buy more thermal gel/paste.

[Patrickssj6]

Well, I looked at the hardware monitor, and found something horrible. D:

The CPU temperature goes from 38 C to 48 C in 45 seconds. It continues to climb even after that, and it shuts off around 70 C. I don't know why it isn't getting cooled. Maybe I just need to buy more thermal gel/paste.
Once you detach the CPU from the Heatsink you have to reapply the thermal paste since the air (bubbles) between the Heatsink and CPU don't transfer the heat anymore that well (since air is bad at transferring heat).

Can you confirm that your CPU get's that hot? Take your finger and touch the Heatsink while heating up.

[4RT1LL3RY]

I don't think touching something at 70 C is a good idea thats 158 F. If you have a laser thermometer try that. If your system is over locked try to clock it back to its original. May I ask what CPU you have, Core 2 duo, Pentium 4/D, AMD, etc. Ifs its a pentium its heat, ifs its C2D I have never heard of oen gettign that hot. My Processor is only 36-38 idle and 45 under load

[Roostervier]

E6550 Conroe Core 2 Duo. Also, I am buying a new heatsink anyway. I really don't have the money, but I hear it stays attached better than the stock cpu fan anyway, plus it's better (someone was overclocking a Core 2 Duo at 3.2 ghz and getting no higher than 57 C at load, and 40 C at idle. The ones with single cores never went past 27 C). Anyway, before I attach the new heatsink/fan, should i clean off the old thermal paste?

[jahrain]

The core2 duo in my laptop gets up to 65C or 70C when under a full load on a hot day.

Make sure you clean off every bit of old thermal paste when replacing it. Also, I recommend using Arctic Silver 5 compound. Its about $5 for a tube of it, but its worth it. It works very well.

[Patrickssj6]

What Jahrain said, also follow this:
http://www.arcticsilver.com/arctic_silver_instructions.htm

Perfect thread I mus say. :awesome:

[4RT1LL3RY]

Ah, the E6550, same here why pay $75 more for .07GHz when you can just overclock it. Arctic silver works awesome, under max load from a multithreading cpu-tester I get a max of 40 C, thats in a room thats 26 C, and with default heatsink. The stock heatsink sucks, but I am planning on getting one later in the year, but man I love my new computer. I fixed my computer's freezing problem, it was nothing involving hardware though. Just had to create a new account in XP, I have one account optimized for gaming, the others are for other things, one is for school, other strictly for downloads.

[jahrain]

Heres a fun video to watch if your scared of your PC overheating.
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