Discussion in 'Dell XPS and Studio XPS' started by iunlock, Mar 10, 2017.
Can anyone point where is PCH temperature sensor please?
That's the PCH right there....
Is it worth padding? Light use my CPU sits at around 36-40C, PCH at 55 - 60, which is like 20C difference.
It doesn't appear urgent in any sense. Some of us have tried aiming to make the fans spin less (seem to trigger below fifty), with inconclusive results. Mind there is a hot voltage regulator nearby, near the battery connector on the other side of the metal plate.
It will help with your fan...but I guess its a doubled edged sword...if you want higher speed and your fans on more often then leave it uncovered...if you want no fan when idle...I suggest padding it... I padded mine. My fans NEVER come on when on battery + the power setting......but overall it does stay cooler. Doesn't produce much heat but it will climb into the 50's and 60's like you said..
To add to the info available, some users with eGPU enclosures on the eGPU forums claim they got faster speeds by having it padded. They included benchmarks showing an increase around 25%. But that was the 9570,and I don't think I've seen that with the 9560.
Hey guys, I have a Dell Precision 5510 which is similar to the XPS 15 9550, and I have liquid metal my laptop with Thermal Grizzly Conductonaut. My CPU temps when stressed is 81 celsius and I don't seem to get temps anywhere near you guys though it is 10 celsius cooler than stock thermal paste. Any suggestions as to why I am getting such an anomaly?
CPU: Core i7 6700HQ
GPU: Quadro M1000M
I cleaned the heatsink of the old toothpaste stamp with alcohol wipes and applied liquid metal on both surfaces (the silicon die and the copper heatsink), and somehow I am still getting high temps. Am I doing something wrongly?
Perhaps you didn't clean enough. I usually don't use alcohol wipes but a combination of alcohol, cloth and cotton swabs to really clean all gunk of until each of my tools doesn't show any grey smear. Also, maybe you used too much or too little liquid metal, preventing proper contact with the copper heatspreader. Finally, your CPU is also a pretty hot CPU with far too high voltages. If you haven't done so already, Skylake CPUs will benefit greatly from undervolting.
Did you blow compressed air to clear out the cooling fins? Did you carefully clean the fans (don't use compressed air as overspeeding the fans will kill the bearings).
Did you check if the heatsink is not warped? This is a common issue with the 9550, so may favour a good non-metal paste (liquid metal has little tolerance for warpage).
If you run something like Prime95 for a while, are the cores very close in temperatures (like within 2*C). Larger variance indicates either warped heatsink or suboptimal application.
If your heatsink is warped you may be able to gently sort it out but this is ultra delicate and a few experienced guys have kinked/broken them here.
Even the professional laptop engineers here typically try a few repastes to make sure they are getting optimal coverage.
Reply to MrBuzzkill
I think there was a lot of the old paste. I just cleaned it up 5 minutes ago, and redid my liquid metal.
How do i tell if I used too much or too little liquid metal? cus this is what it looks like after taking out the heatsink
Some of it actually spilled out a little on to the electrical tape, hence I think I may have put too much Liquid Metal.
I could undervolt, but when I do anything CPU and GPU intensive, I still hit high temperatures and throttle a lot. for this particular CPU, the lowest stable undervolt for me is -120mV
Reply to pressing
Yes, I cleaned both the fans and the heatsink fins.
The heatsink looked flat to me and all 4 cores are within 1 degree celsius of each other.
The screenshot taken below is the CPU being stressed only, with liquid metal applied
I have tried these traditional paste
1) Arctic MX 4, bad for this laptop, have to keep repasting every 2 weeks to maintain temperatures
2) Cooler Master Mastergel Maker Nano, last much much longer, but the laptop still loves to heat up
3) Thermal Grizzly Kryonaut, best non-liquid metal paste I've used so far with the lowest temps across the 3, still thermal throttling, only 1 to 3 celsius cooler than the Mastergel Maker Nano
EDIT: Hmmm, new people can't seem to be able to post images.
Screenshot, when both CPU and GPU are stressed
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