The consequences of repasting an XPS 15 9560 and why most people shouldn't do it

Good results. Is that an i7 7700HQ?

Also note there seem to be a lot of people suffering instability at that range of undervolt with the Kaby Lake chip so keep that in mind. BSOD when gaming or changing to and from battery power, etc.

I didn't realize the 6700HQ had problems with that test. My 9550 i5 can run that ROG StressTest "all day" without throttling (repaste, VRM repad, undervolt, and that XTU turbo watt+time tweak)...

 

Yeah I should have specified, I have an i5 7300HQ 9560. I am stable undervolt wise up to -150mv but I like to pad in a little just in case so -140mv works great.

I hadn't ever tried ROG with my 9550 with Hyper threading on, it may just be my laptop, but it def throttles down to 2.0ghz after 20 or so mins. I think I only ran it for 30 mins or so without hyperthreading on a long time ago and I didn't notice any throttling.

 

Hmm there seems to be a lot of variances with the xps, because my i5 (9560) runs stellar compared to the stock i7 model. (now the i7 runs like a champ.)

The culprit is definitely the poor design of the heat sink assembly in not covering the right places to cool the fets properly.

As for the kaby chips they uv much better than skylake chips. Actually way better, at least with my systems.

My AW 17R4 with the new Kaby is out for delivery so I'll test how far I can stretch the cpu...Although it's the unlocked 7820HK, I can compare it to my 6820HK to be able determine how much better it is in terms of its flexibility. This data would solidify even more in detail the existing data I have from the Asus G701VI that has the 7820HK Kaby.


::iunlock::

 

Interesting, every skylake xps I have had has been significantly better at undervolting. My first skylake i5 easily did -185mv and my latest i7 does -165mv (175mv if I have hyperthreading turned off). I think the worst one I had was an i7 that wouldn't do better than -130mv...
I had a lockup with the i5 Kaby Lake at -160mv but it seems to do -150mv without issue.

Luck of the draw I suppose.

 

That unwanted silicon lottery...

Mama always said....

"Life and hardware is like a box of chocolates. Ya never know what you're gonna get." - Forrest Gump

::iunlock::

 

Guys I am getting below temps while playing Dota2 at 4k Medium settings, constant 60fps though and no lag or whatsoever.

Cpu Core 0 - Max 97 - Avg 72
Cpu Core 1 - Max 90 - Avg 73
Cpu Core 2 - Max 96 - Avg 71
Cpu Core 3 - Max 90 - Avg 71

Cpu Package - Max 98 - Avg 73
CPU IA Cores - Max 98 - Avg 73
CPU GT Core- Max 80 - Avg 73

But is there anything I can do to improve temps, already undervolted by -120mV.

Other all temps stay below 70 degrees. Also NVIDIA Graphics Temp stays below 72 degrees.

 

You need to repaste at those temps as it will be hitting the throttle point.

 

Also to support repaste, core deltas are 7*C at max and could be more, which indicates poor thermal paste or a misfitting heatsink.

 

Guys did repaste. Now cpu temp stays avg 65 and max goes upto 78.

But now nvidia graphics temp too max at 78. Before nvidia had max 71.

 

As long as the GPU doesn't throttle, that's fine -- the performance is probably higher now that your CPU is not throttling so the GPU is hotter. Your CPU temps went down by 20C so yours was one of the genuinely bad paste jobs and the repaste was necessary.

 

Which thermal paste you use, any recommendation?
Is it ok to apply AS5?

 

It is dated and for high pressure really, watch videos read the forums and see what others are using and make your own mind up what you want to use.
Everyone has a different opinion and as these things have been discussed at length so go do your homework