I've been having problems with my screen whilst at university whereby the screen of my laptop will go black or other colours with loads of different coloured lines, but it appears windows is still running as, for example, I can hear music still running, and I also don't think it is a Windows issue as sometimes the lines pop up on boot.

After having run SpeedFan it shows there to be a flame to my GPU temperature which is on average about 70C. Also, my core occasionally hits 50C which leads to being apparently too hot?

Thoughts? I also believe it to be a hardware issue as the issue frequently arises at university whilst back home it is a lot cooler and the issue has yet to arise again. If it is the case its a hardware issue, can I use SpeedFan or any other program for that matter to fix the issue, or should I use the warranty I have and send off the laptop (which is a pain)?

Thanks in advance.

Yeap, that sounds like it's overheating. Dust it if you can and keep it at a cool surface/ventilated.

How would I go about dusting it? Any software I could use to fix it? As I'm going back to uni, should I think about sending it back to get it fixed?

How would I go about dusting it?

Using a gas duster. Canned air.

I have also used a wet cotton swab on a heat sink before.

I'm not sure of the reason for the extreme temperatures between home versus school but if it was me I would send it back, have them

check it out, or at least call tech support, explain the situation and get their feedback on how you can efficiently deal with the over

heating. You don't mention the difference in surfaces (home/school) you have the laptop on when using it, I wouldn't sit it on a stereo

receiver or anything that generates heat or even a bed with thick blankets.

If dust is blocking airflow or accumulating around heatsinks you will get high temps. Don't they make cooling pads for laptops?

Do you live in the Arctic and go to school in the Sahara :P

How would I go about dusting it?

Using a gas duster. Canned air.

I have also used a wet cotton swab on a heat sink before.

I mean where I about I would access the GPU?

I mean where I about I would access the GPU?

The GPU (Graphics Processing Unit) is an integrated circuit (IC) attached to the PCB (printed circuit board) of the graphics card.

The GPU is located under a metal heat sink, which probably is located under a fan.

So you would use the can to spray air on the fan/heatsink area, to get rid of the dust that is attached to the blades of the fan, and to the fins of the heat sink.

When you open the case - kiss the warranty goodbye.

There are likely numerous screws and clips holding the case together, you will need to remove them to get inside.

You may find some help online by doing a search for your brand and model +dusting +gpu etc.