Just put together a new build today. Everything seems lightning quick. Thought I'd give my HDD a test (it's a samsung F3 1TB)
I got this output:
I did a few other tests, this was one of the better ones. The others had much more wild "up and down" patches. Some even had brief moments where the speed dropped to near 0!
I think there may be a fault. Hardware? Did I plug something in wrong? New SATA cable? Please note this is the first time I've built a PC, I'm surprised it even turns on