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

3

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.

lasan

Posted 2016-12-03T07:43:35.860

Reputation: 129

Answers

5

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.

enter image description here

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

magicandre1981

Posted 2016-12-03T07:43:35.860

Reputation: 86 560

1Totally fixed the issue instantly! Thank you very much , we need more people like you in this planet. :-) – lasan – 2016-12-03T09:07:38.707

But what does the jumper do, technically? – user1686 – 2016-12-03T20:53:52.473

@grawity I'm guess, to make it master or slave drive ? – lasan – 2016-12-04T06:17:07.677

3

@grawity this "Device Attention" pin which is used in Win8 for some purpose: https://msdn.microsoft.com/en-us/library/windows/hardware/dn614034(v=vs.85).aspx . I thinl the jumper just turns this off

– magicandre1981 – 2016-12-04T07:27:08.680

2@lasan That does not exist in SATA. – user1686 – 2016-12-04T08:52:49.487

Asked: 2016-12-03T07:43:35.860

Viewed: 2 158 times

Active: 2016-12-03T19:53:21.927