External Hard Drive Click+Slows OS
So I have had this external Seagate HDD that when I transfer data to or from it it clicks every second and it makes my computer lag when it clicks. It transfers at normal speeds, is relatively new, and I ran some HDD tests to no avail. Funny thing is sometimes when it is transferring a lot of data it causes my wireless USB mouse to not work and I have to replug it in to make it work again. I ran HDD, Memory tests on all my components, no dice. Any ideas?
Tests ran were Memtest 1.8 and 3.2 (I think that's the version) and the newest DFT for the drives.
Oh yes it is the new Seagate Free Agent 500GB one. And I am using a WD MyBook as well - it does not cause any of these problems.