8250u SEVERE thermal throttle

got my 7570 in april. Intel i5 8250u/16gb ddr4 2400/256gb ssd/nvidia 4gb ddr5 geforce m130. I am running the latest BIOS and driver/Os Updates. Stock my idle temps were in the high 60s to low 70s. Easily reaching 100c during even light usage. I took off the stock thermal paste and applied artic silver 5 and now my idle temps are in the mid 40s and 50c. However during gaming/multitasking i still get severe throttle. Even power limit throttle. I ran Intel XTU and lowered the vcore -100 and it did help, however it still throttles during gaming and workloads. The GPU hits 70C as well. I have read similar stories where people have the same issue. Is there a fix or this is just how it is. Very disappointed if so.

Since you rattled off a number without a model and then a mobile CPU afterwards, I'm guessing you are talking about a laptop. And since the only laptop it recently corresponds with is some slim Dell laptop, I'm guessing it's one of those.

If there's no IHS on the CPU and you re-applied thermal paste and it still overheats, either the CPU temp sensor is defective, or the cooling solution is defective.

If you can crank up the CPU fan speed manually to max and it still overheats, then the cooling solution isn't designed for a CPU with a TDP that high, or basically a design screwup from Dell.

Have an 8550u in an Asus 13" 2-in-1 and yeah, these CPUs can run faster in chassis with much better cooling, but in smaller chassis they're still excellent as they can still hit higher burst clocks on all cores.

However, they do not do sustained high clockspeeds. And frankly, you don't want them to. In the occasion that they didn't fail outright, the system would become too hot to physically touch.

Its a dell inspirion 7570. Yes its slim. After watching some youtube videos i am not the only one. Poor design by dell. They cap the gpu at 70c as well. Stuck with it.

Now I see what the problem is from pictures of the bottom of the unit, there's no damn air intake for the blower. They copied the same design flaw that Apple has had in Macbooks for years, good job at sucking Dell.

There is a fix for this, but it's destructive, I did it once on a macbook 13".

Basically you get a hole saw the size of the blower impeller and drill a hole in the bottom of the case where the blower intake is. Tidy up the edges with a dremel and then install a perforated metal mesh on the inside of the cover using superglue to protect the blower from damage.

The macbook I did the mod on went from idling at 90C with a continually screaming fan and throttling CPU down to 50-60C idle and 70C under load, it was a whole lot quieter too.

The 8th gen quads are basically totally different models depending on how well your chassis cools, the i5/i7 and part number are almost meaningless.

The i5 in a good cooling laptop design with the right firmware mode set will beat down the i7 in a fancy-but-shit chassis during extended runs. The new intel thermal management driver thing they all come with is a huge hint about this fact.

The lenono 920 is a surprisingly good ultra thin model in my experience, can't speak for any of the others. At first I assumed it would run shit like apple and anyone that copies their fashion-focused crap but I was wrong. I normally avoid them for many reasons hence the nickname but just happened to try a friend's version first before I was sold.

Paired with eGPU boxes it runs really well, if you boot plugged in with the iGPU disabled it has even more headroom for the cpu and will kick up another couple turbo bins during continuous benchmark loops.
It also works out of the box with a proper full bandwidth TB3 and driver configuration for eGPUs, something not many other laptops have managed to do so far.

Just an update. I reapplied the thermal paste using artic silver 5. I also used a piece of electrical tape to better "seal" the exhaust fan.....theres foam where it meets the chassis....so i ensured no air can escape unless its out the back. This solved my issue. No more thermal throttle. I still get power limiting sometimes but now it runs great

sanitarium16 said:

Just an update. I reapplied the thermal paste using artic silver 5. I also used a piece of electrical tape to better "seal" the exhaust fan.....theres foam where it meets the chassis....so i ensured no air can escape unless its out the back. This solved my issue. No more thermal throttle. I still get power limiting sometimes but now it runs great

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Good work!