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  • Posts: 6
  • Registered: ‎09-10-2019
  • Location: Philippines
  • Views: 137
  • Message 1 of 2

Y540 Waiting for ~30 secs before ramping up fans

2019-09-19, 1:31 AM

Hi. I just want to ask if im the only one with this problem. Now my y540 is about 1 month old, repasted with kryonaut, and undervolted to -0.150.

I noticed when I start any game, my fans wont kick in but the CPU will throtle. This lasts about 30 secs making any program that is cpu intensive lag so much. After about 30 secs, when the fans kick in, the clock speed will normalize and the game will feel zero lag. I'm concerned about the initial 30 secs that this laptop is dead silent but the temps are up to 95C! Before I repasted this laptop I also noticed that the fans will kick in faster because the laptop hits 95C faster.

I've tried every BIOS but they are all the same. Lenovo please fix the fan curve or give us fan control. 


61 Posts



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  • Posts: 61
  • Registered: ‎08-27-2019
  • Location: Egypt
  • Views: 871
  • Message 2 of 2

Re: Y540 Waiting for ~30 secs before ramping up fans

2019-09-19, 7:07 AM

I don't think this should happen, maybe you have a faulty unit?

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