Lenovo Legion Y720 need help

[Igor Vasily]

Hello community!

 

Recently I bought a new Lenovo Legion Y720. He was running slow even from the start, but after tweaking some settings I managed it to run smooth and nice. What I encountered was the CPU temps. The GPU temps are maximum 71C in full load, which is ok. But the CPU hit even 92C which is too much. I think it's a wrong thermal paste appliance or poor quality since everyone else is getting 82C with a stress test or while gaming at ultra settings any game. I undervolted the CPU and even disabled turbo boost to make it run cooler. Now it stays under 72C but after I turn on again TB, it jumps to 82C instantly. Should I ask for a replacement or maybe reapply thermal paste with a new one? Thinking at an Arctic MX-4 and maybe it will stay nice and cool. Thanks in advance!

 

PS: Specs are:

CPU: Intel Core I7 7700HQ @ 2.80Ghz with turbo to 3.8Ghz

GPU: GTX 1060 6Gb 

RAM: Samsung 8Gb

HDD: WDC 1TB

Display: 1920X1080 LG Ips Panel

Dual fan cooling included.

[genexis_x]

How much you have undervolted the CPU? The Y720 has a capable cooling system.

 

Also, try undervolt the GPU too by making a custom voltage to frequency graph in MSI Afterburner (Google it)

[Dackzy]

82c with TB isn't bad, but I do know that the QC on these new legion laptops aren't the best, so the TIM might be poor on your laptop.

[Igor Vasily]

No problem I will answer and give another details for my laptop to see if it's something wrong with it.

 

First, I noticed that in most games I get 92C with Turbo Boost, everyone else getting hardly 82C at least (10C difference, must be the thermal compound).

Secondly, I undervolted it with 0.130V stable and it dropped about 10C (still getting 92C with TB enabled in games, so no difference here somehow. I get a little hard to 92C but still, too much)

And the final punch to be called like that, right now I found out two dead pixels on my display so I won't accept this and send it to the waranty. If they cannot fix it, I will receive negation from service and my Legion Y720 will be replaced with a new one (hopefully new this time. This hasn't look new to me with those performances. At the outside, it looked new). Thanks for advice. 

 

PS: The GPU stays in 71C maximum which is good for it so no need for undervolting the GPU. The iGPU is undervolted to -0.130V too like the CPU Core and Cache.

[D13H4RD]

A repaste is definitely a good idea.

 

IC Diamond is what many laptop users use.

[Igor Vasily]

Thanks for suggestion! I already bought Arctic MX-4 because I couldn't find Arctic Silver 5 or any other good paste. Still, I will send my laptop to waranty to repair the dead pixels. They are very annoying.

 

[D13H4RD]

Don't forget to learn how to apply it if you're new to repasting.

 

Don't apply way too much and also don't apply too little. 

 

Another thing I'd recommend is a laptop cooling fan. The Y720 has its vents on the upper portion of the laptop's base. I recommend the Cooler Master Notepal U3+ because you can place those fans directly underneath the vent and blow extra cool air in. 

[Igor Vasily]

Thanks! I'm used to apply thermal paste. I previously had a custom built PC and an Acer Aspire E1-531G which needed to be reapplied the paste. Being an Acer and not a new one, it is a nightmare to dissassembly it. With this laptop, I will send it to waranty first to not lose it and hopefully they will repair it so I will have waranty for the next 2 years. 

[felix26591]

The Y720 is really easy to take apart, 9 screws on the case and 7 screws on the heat spreader. The entire repasting can take you 30 minutes if you've done it before. Here are my results after repasting and undervolting.

 

Red: Factory state - normal voltage and stock paste

White: Repasted (Kryonaut)

Green: Repasted (Kryonaut) and undervolted to -0.125 (stable)