M4400 hiccups when GPU temp hits 75-80

The maximum voltage of 1.3625V is at the top end of the range. That could explain the high temperatures but first check if mobile CPU is selected on RMClock's advanced setting page. It will be worthwhile studying the undervolting guide. Dropping that maximum voltage will reduce the temperature.

No. The CPU is socketed so it will most likely get moved from the old board to the new one.

John

 

Yes it was set on desktop, heres a new screenshot set to mobile.

 

That looks better. The minimum voltage is very good - lower than my P8600 - and suggests that there could be potential to drop the maximum voltage.

John

 

If it helps enough i'd call off the repair guy

 

The underclocking is very interesting and Ill propably try that out, but its a little intimidating for now. I think Ill wait until I have a whole day to read trough the instructions and do those stress tests properly.

For now Ive been working all day and Im getting what I assume are pretty high max temps. Ive been doing medium to heavy computing for 6-8 hours and here's the temps attached. This is kinda high right?

The dell guy called today to specify the time for tomorrow morning and he said he will replacing the fan and the mobo. So Ill talk with him when he comes, if he seems knowledgable I'll ask if we can first try cleaning up the comp and changing the fan. If that dont help go for the mobo change too.

Can I use the orthos stress tester to see how the fan change and cleaning will affect? I mean try and convince the guy to change a few parts, run orthos and see how it goes, would that be smart?

Usually they only come to change the parts, turn on the comp to see if it works and leave Fingers crossed!

 

Looking at the heat it produce's,I'd be amazed if they can't find something awry, hopefully common sense will prevail and they will try the simple thing's first without splitting the notebook to change the motherboard.

What is the ambient temperature where you live?

 

well the cpu seems pretty high indeed. The GPU is normal so there might just be a cooling issue with the CPU like the heatpipe not making good contact or such. It also depends on where you're using the laptop, if you're on a flat hot surface it shouldn't get this hot but when the vents on the bottom are blocked it can easily shoot up in just moment during intensive use.
Let me put it this way, if i have my laptop on my desk and it's rendering 3D images it'll never reach those temps so you shouldn't either....if your airflow in and under your laptop is how it should be, the heatsink it making contact properly and the CPU is seated correctly.

All this can be checked by the repair guy and yeah, if he seems like a nice a knowledgable guy ask him if he can explain what he does while he's doing it. This way you'll get to know more about what could casue problems and if there's easy ways of determining what is causing it the next time.

 

Hey!

I live in Finland, at the moment it's around -5C outside and 21C indoors. I assume thats below normal temps

My laptops always on a wooden desk, all the little rubber legs are still under the laptop so it should be pretty ok as well.

Thanks a lot for all your help people! I feel pretty confident for tomorrow, I hope there's a change to talk through all this with the repair guy

I'll post back with results tomorrow! Thanks!!!

Sami

 

Hey all!

Good news! The repair guy came in and was very cool. He had a new mobo with him and a new fan. Immeadiately when he opened the laptop it was pretty clear what the problem was. You can see in the pictures attached the amount of dust gathered inside the air vent. So we decided he is just going to replace the fan and we'll leave the mobo untouched. He also changed the thermal insulation (?) on the cpu and gpu, you can see in the pictures it was pretty worn out.

So far the CPU temps are 15-20 degrees cooler then before, so a pretty clear indicator of what was wrong here! Also now I saw how easy it is to take the fan out and Ill be able to clean the air vents myself from time to time.

Thanks for all your help and Happy Holidays everybody!

Sami

 

Oh wow...no wonder your temps were that high, that's some serious dustballs
If you do it yourself you only have to remove the fan, not the heatsinks. Be carefull with the little plug that connects the fan to the mobo. That's about the most fragile part you'll have to handle.
I mostly just use a soft medium size paintbrush to remove all the dust.

happy holidays to you to....with a cool running lappy