Laptop 2nd HDD uses 20% cpu [system]

[SarsLars]

Hi there,

Altough its my first post on these forums i have been a reguler guest at Toms hardware! Lot of nerds here, and i like it

Speccs:
Model: Samsung Rc530
Windows 64bit - Home Premium
- Intel i7 2.0ghz
- 6gb ram
- Geforce GT540M
- SSD Corsair 120gb ( primary)


My problem:

I have installed another HDD (hitatchi 750gb) in DVD-slot. This works fine, but my CPU usage is arund 10-20% and it really affects my gaming experience. Altough its only a small amount of the cpu a nerd like me really feels it. It also feels like the PC in general is a lot hotter.

I have seen som threads regarding DMA/PIO but this does not help me very much since i cant really find the settings and/or not visible so i dont think thats the problem.

I have done countless things in BIOS without result and i have even updated the BIOS. I have formatted the harddrive, installed windows all over... no difference in result.


What i know:

I know that it is the 2nd HDD or SATA ports that is the problem, when i pull the HDD out it uses 0% CPU and its completely silent. When i put the DVD-rom in its just as it was without - 0%.
I see in task manager, that SYSTEM uses the CPU when its connected, and i cant find out more than that.
So the 2nd HDD is the issue, and i have googled, searched, read, and i taring my hair out - cause i rly need that 750gb

Is there anyone there who has any clue? Some fixes? Same problems?
Sorry for my bad english and that my first post is crying for help, but if this is solved i would be ever greatful to community and i will contribute in the future!

Thanks - LP

 

[SarsLars]

Still no updated on the situation. I have tried a secondary HDD to see if its the HDDs problem. Same issues.

I will now try to install Win7 from USB and a fresh install of windows with the HDD plug in. So i dont have to replace the DVD with HDD after installation.

I know its a longshot, but im out of options.

 

[irfan_01]

Same problem with me, I tried with 2 laptops and 3 caddies (different vendors).

I noticed that the problem is with caddy, even if connect caddy without HDD, still it took 12% CPU load, if I remove caddy CPU load is normal 0%.

 

[Amartya]

It is normal