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Last reply by 06-19-2020 Unsolved
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xps 9570 pch overheating

So I was downloading a steam game, I'm using school network so I got a 45mb/s download speed, and after a minute, I got a blue screen...

Fired up HWinfo64, try again, it turns out my PCH is at 92 degrees C. My CPU is at 57 degrees C and GPU 47, the ssd, the MOSFET, they are all fine. But why is my PCH so hot when I'm downloading at high speed?

PCH is not connected to the heatsink and is a passively cooled, exposed die. There's no airflow inside the case, and I can't just put a thermal pad there and call it a day. It only increases the thermal mass but still no thermal dissipation and it will still be hot AF after a few more minutes.

By the way I'm using an Ethernet to usb-c adapter instead of my wifi card. That's why it's not my wifi card that is exploding.

Pleas help.

Replies (24)

As I said, I download game with Steam at a high speed (50MB/s+) and I was watching 4K video on Youtube. 

If I use battery, it is still hot (88 C) but doesn't shutdown.

CPU temperature is at 64 C, GPU temperature at 47 C.

I tested the PCH today and it was at 94 C. Didn't shutdown today, but 90+ C is still critical temperature, which is concerning. 

@BadHusbandtry this:

  1. Turn on the computer with the charger plugged
  2. Unplug the charger
  3. Suspend the laptop
  4. Plug the charger
  5. Wake up the laptop

I don't know the reason but PCH has lower temp doing this...could be a BIOS problem. I posted this in other thread (9550-high-PCH-temp-when-laptop-is-plugged) but nobody form DELL replayed me.


@BadHusband wrote:

As I said, I download game with Steam at a high speed (50MB/s+) and I was watching 4K video on Youtube. 

If I use battery, it is still hot (88 C) but doesn't shutdown.

CPU temperature is at 64 C, GPU temperature at 47 C.

I tested the PCH today and it was at 94 C. Didn't shutdown today, but 90+ C is still critical temperature, which is concerning. 


@BadHusband, i'll follow up with you on via direct message for more information.

Alan

DELL-AlanD
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@Dell-Alan Dany idea how could I solve my problem (9550-high-PCH-temp-when-laptop-is-plugged)?

@Dell-Alan D

Any idea how could I solve my problem (9550-high-PCH-temp-when-laptop-is-plugged)??

It's quite similar to this one.

@Panabuntu this thread relates to the issues with the 9570, not the 9550. To avoid confusion I shall respond on the thread you created for the 9550.

Alan

DELL-AlanD
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Hi Alan,

I have recently gotten the XPS 15 (9570) and also experienced overheating of the computer at the left hand side of the keyboard. This happened when I was plugged a USB-C hub into the USB-C port on the left side of the laptop. The only thing that was plugged into the USB hub was a ethernet cable (1GBPS). I was not downloading anything - I was just surfing the web. If anything, I was running an internet speed test to see the connection speeds on my laptop as this was the first time I connected my USB hub to the laptop. 

Please help. Thanks.

@Hello__World can you provide more information on the system overheating please?

What kind of temperatures are you seeing during use?

Has the system ever shut down from excessive heat or thrown up any error messages about thermal thresholds or temperature related issue?

Alan

DELL-AlanD
Social Media Support
#IWork4Dell
I'm based in the UK and I'm usually available Monday to Friday 9am-4pm GMT
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Hi,

Okay just to clarify things - my laptop did not shut down from excessive heat, nor did any error messages pop up. So in the strictest sense of the word, my computer did not overheat. It just got abnormally hot so I decided to stop using the USB-C hub. 

When my computer got really hot, I wasn't doing anything CPU intensive on it. However, I had the standard (non USB-C) power supply plugged in as my battery was low. I tried to reproduce the problem after I posted this, but it did not heat up like it did previously. The power supply was still plugged in, although the battery was already full when I was trying to reproduce this.

I just tried to reproduce the problem once again (30% battery, power supply on, USB-C hub plugged in with ethernet cable) with HWiNFO64 on, and this time the laptop got really hot once again, with core temperatures hitting 100 degrees Celsius.

 

CPU status.png

@Hello__World those temperatures for the proc are very high. I'll drop you a private message to get a few more details from you.

Alan

DELL-AlanD
Social Media Support
#IWork4Dell
I'm based in the UK and I'm usually available Monday to Friday 9am-4pm GMT
Get Support on Twitter @DellCaresPro

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