System and compressed memory and system interrupts takes 40% of the cpu

I searched a lot about this online and couldn't find a solution, I turned off fast startup as many answers have suggested. But it didn't work , The problem happened after I connected a secondary hard drive to my laptop removing the dvd drive , whenever I remove the secondary hard drive , above processes act normal. I have a SSD as my primary drive , the problem happens only when the secondary drive is connected , I desperately need a solution since this is killing my computer.

Solution 1:

This is a known issue. To use a hdd in the DVD slot, you used a HDD caddy. In some cases you get a high CPU usage caused by the ACPI.sys driver.

You have to look if your caddy has a jumper and if yes, change the position of the jumper.

This fixes the CPU usage. If you don't have a jumper, buy a caddy which has such a jumper.