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  1. Ok, here we go. This has been a very long journey, so I'll start from the beginning. I've had my laptop for 3 and a half years now, and up to a couple of weeks ago, it's been fantastic. It was during this time that I started noticing that the fans would go really loud with the computer idle or with really light load (before this started happening it was always dead silent unless I ran a game). So I was worried that the CPU was getting too hot, installed Core Temp and lo and behold, 55 - 60ºC when idle. Since I had never opened up and cleaned my laptop since I got it, I thought maybe there was too much dust build-up in the fans and the thermal paste needed to be replaced. Did that, no change. Then I went to the dell forum in search of guidance, which resulted in some mods suggesting the ePSA diagnostics run and some other tests, all of which resulted normal (every hardware component was fine except for the battery which is just old). I was also told to watch out for any spikes in the CPU activity in the Task Manager, which led me to finding that for the first seconds of opening the manager, CPU usage was around 90%, with a process called System interrupts being the only culprit. I investigated this and found that it may be a mining virus, which led me to this site where I was guided through all sorts of scans and fixes by the great AdvancedSetup. There were a few minor infected files, but nothing that would be causing this, especially no mining virus. AdvancedSetup also told me that the Task Manager behaviour was pretty normal, but I'm still concerned about the CPU temp and the fans. Something that a fellow reader in the Dell forum told me was that disabling the Nvidia driver may help, which it did. Fan speeds were null or minimal, while CPU temps lowered to 40ºC. I periodically check for drivers and system updates. My specs are: Intel i7 7700HQ, Nvidia GTX 1050, 8Gb RAM, 256Gb NVMe SSD. This is my last hope. Thanks in advance for any replies or suggestions you might have.
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