Razer Blade 15 (2018) 100% CPU Usage after start-up until... | Razer Insider

Razer Blade 15 (2018) 100% CPU Usage after start-up until...

  • 25 September 2019
  • 1 reply
  • 4 views

I open task-manager.

So, I have been having this issue for a month-ish now, where my laptop would have fans running fairly loud (which I am not used to), and the battery draining quite fast even at the 60Hz screen refresh rate. I bought my laptop on release, and it's been working great till now. To investigate the fan-loudness further, I went to check task-manager, right when I opened it I noticed 100% CPU usage, but within few seconds, the CPU usage went back low. I have tried this several times now, the laptop will be loud and have 100% CPU usage until I open task-manager, and then everything will be ok.

Some threads have been hinting the issue towards Razer Synapse. But I have no idea what the real culprit is. I have checked my start-up services and I don't see anything odd;


  • LGHUB
  • Razer Synapse 3
  • f.lux
  • Discord
  • Windows Logon GUI Application
  • Realtek HD Audio Universal Service
  • Windows Security notification icon


are the enabled applications on start-up.


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Oh, and after opening task-manager, the CPU usage drops to ~6% so fast that I have no time to check which app was the culprit. Any suggestions on how to track this down?