Inexplicable Hard Drive Performance Issues

Hey there,

I was currently in the chat earlier asking about this. I've had this issue for like 6-7 months now, and I've completely rebuilt my computer (save for the RAM) and still am dealing with it.

Basically, it takes little to put any of the drives at 100% usage, which I monitor in Windows 8 Task Manager. Benchmarks show how terrible things are with erratic spikes and drops in speeds going as low as 2MB/s. Loading times in games suffer greatly, the computer isn't exactly fun to use when an installation for something of significant size is being done or if there's a download going.

Specs before upgrade:
AMD Phenom II X4 955
MSI 970A G43
Radeon 7850
Rosewill 650w PSU

Specs after upgrade:
Intel Core i7 4770K
Gigabyte Z87-HD3
GTX 780
Corsair CX750 PSU

Hard drives:

Seagate Barracuda 7200RPM 500GB
Seagate Barracuda 7200RPM 1TB
Seagate Barracuda 7200RPM 1TB
Western Digital Caviar Green 7200 2TB

All have performance issues. The 500GB and one of the 1TB drives have been tested and work great in other computers. Another thing to note is they perform better when they're secondary drives. As in, my 2TB which has Windows on it is the one that has the worst performance, but that would go for any drive that runs my OS.

I've tried different SATA cables, different power cord for the PC itself, different outlet, only one drive, two drives, three drives plugged in. Windows 7, Windows 8, Windows 8.1. Pretty much everything that the average tech literate person would think of. Sitting here with three of them running (all but the 500GB) I'm getting an occasional solitary "click" sound. Usually indicative of a bad drive from what I'm told. Still wouldn't explain the other drives.

This is a ridiculous issue and I just need to be done with it. I greatly appreciate any help I receive.

Lastly, also tried buying yet ANOTHER hard drive as all the ones above were from the previous build and I figured why not. Same issues. Returned it afterwards as I really don't need that much space.
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  1. Best answer
    It could be the MB's SATA controller issue. Or the MB is faulty. Or the PSU has something to do with it. CX series is not good enough. Try another PSU see what happens.

    When you migrate the HDD's did you clean install the OS ?

    Check the status of HDD's :
  2. Well this is the third motherboard I've had with this issue, and my second PSU. Unless I'm ridiculously unlucky, I don't think it's that. And yeah, hard drives have been formatted numerous times. Health status is showing good in CrystalDiskInfo. :(
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