Dell 5010 overheating issue

[oxonater]

Hi I have a Dell M5010 just trying to diagnose a problem with overheating.

When I say overheating I mean it gets roasting hot on the underside of the GPU also the underside of the CPU.

I was wondering if this issue was GPU related however laptop switches on and can be on for around 3 minutes before shutting down.

Display is working on boot up no artefacts and cleaned fan which is working and applied new thermal compound this makes no difference.

RAM, CPU are 100% working in another machine so that ruled them out, was wondering if the Tantalum caps could be causing this issue.

As I said it gets roasting hot in those particular areas, and have turned to the experts on here to point me in the right direction.

Motherboard details :- 09909-1 dg15 mb 48.4hh01.011


Many thanks and please be gentle with me

[Th3_uN1Qu3]

Re: Dell 5010 overheating issue

Measure voltages, you may have a malfunctioning CPU core regulator.

But first things first, replace that stupid gray thermal rubber (which has dried out by now) that is over the GPU, with a 0.5mm or 1mm copper shim with good quality thermal paste on both sides. I bet $5 it will work just fine after you do that. All of the machines i ended up reballing the ATI chip, the failure was caused by that rubber and the weak retention system for the GPU heatsink (only 1 screw). One in 5 gets away with just replacing that and the chip is fine.

[oxonater]

Re: Dell 5010 overheating issue

Hi many thanks for the very informative reply, the actual CPU and GPU have in fact had the old crap stock thermal waste of space paste removed.

And I had already used an old copper heat sink which I broke down to use the fins as shims for various other laptops I have around the house.

I thought that it could be a chip or numerous at fault given that the board around both CPU and GPU are extremely hot.

One thing may I ask is how to go about checking for the correct voltages, whilst I am somewhat ok at fixing most things delving into board level testing is something I have struggled with.

Is it possible that the GPU could need a reflow/reball

thanks again

[raajkumar]

Re: Dell 5010 overheating issue

No need to reball the GPU. Use the good thermal paste and the thermal pad between the heatsink and the gpu.

[oxonater]

Re: Dell 5010 overheating issue

Thanks for your post, however even when the CPU/GPU has had fresh thermal compound applied it will still stay on at max 5 minutes before shutting down because of a thermal issue. I am thinking the CPU may be the issue here?

Or it's a case of testing the N channel FET's as all around the area of the CPU/GPU is roasting.

[sopik78]

Re: Dell 5010 overheating issue

Have you measured the temperatures yet? In idle and full load? Use some SW and write output here.

[raajkumar]

Re: Dell 5010 overheating issue

After you fix heatsink on the gpu, you just press on it. it will show that is fixed perfect or not. if it going down you should add any copper sims between gpu and heatsink. First complete clean on the gpu for old thermal paste. thereafter apply new thermal paste and pad.

[oxonater]

Re: Dell 5010 overheating issue

Hi

The Lappy has no hdd, it's just bare essentials for it to power on to bios screen.

With regards to pressing on the GPU heat sink it makes no difference at all with any amount of pressure (also it becomes very hot).

Underside of both CPU and GPU become red hot and laptop will boot to bios with no articfacts on display, then after being on for around 5 mins it will shut off.

It will switch on again but shortly after switches off.

Thanks for all your posts

[katfish]

Re: Dell 5010 overheating issue

I would venture to say your heat pipe has lost its ability to transfer the heat. They do have a liquid/gas inside them to move the heat from the cpu/gpu to the fins to be expelled with the fan.

Once this liquid/gas escapes/leaks out ... it no longer transfers heat from the hot spot to the cooler spot (the fins). Replace that heat pipe, fresh thermal paste and a copper shim for the video, should be set.

Here is a good explanation - https://en.wikipedia.org/wiki/Heat_pipe

[Chieftain]

Re: Dell 5010 overheating issue

Its not a heatsink problem or pad error. Check your capacitors under the GPU and CPU chips. You may have voltage leakage through them.
Replace all 330 and 470mf capacitors and check again.

[ktmmotocross]

Re: Dell 5010 overheating issue

Its not a heatsink problem or pad error. Check your capacitors under the GPU and CPU chips. You may have voltage leakage through them.
Replace all 330 and 470mf capacitors and check again.

if they have voltage leakage, they get hot and fets are get hot

[oxonater]

Re: Dell 5010 overheating issue

Hi peops thank you for all your replies, too be honest I have left alone to get some more info on the problem.
However I will replace those caps and post the results thanks again much appreciated

[mcplslg123]

Re: Dell 5010 overheating issue

Hi

The Lappy has no hdd, it's just bare essentials for it to power on to bios screen.

With regards to pressing on the GPU heat sink it makes no difference at all with any amount of pressure (also it becomes very hot).

Underside of both CPU and GPU become red hot and laptop will boot to bios with no articfacts on display, then after being on for around 5 mins it will shut off.

It will switch on again but shortly after switches off.

Thanks for all your posts

Your ati gpu is about to die-dont waste your time changing caps-it will lead you nowhere to solution. This mobo is known to have ati gpu defect. Better replace the ati chip or convert it to uma.

[Duranitron]

Re: Dell 5010 overheating issue

just a suggestion i agree with mcplslg123 i have this kind of issue with dell when it overheats. when you heat it or reflow it repair will last exactly 1month and then it will return again to the original state. better yet replace the bga ati gpu to fix it.