My HD transfer rate drops badly the longer the pc is on

e-nigma

Distinguished
Mar 17, 2010
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The longer my pc is on, after a restart, my disk transfer rates, only to the mechanical HD (I think) drop severely. I mean, like 95% slower than they should be. Only after several hours of being on.

At a loss on this one.
I have 3 ssd's in my system, and 1 HD.

I had a 3TB that I thought was going bad, so I replaced it with a new 6T. This one is doing the same thing.

Even during a format. When I started the format, it was moving right along. In 1-2 hours it was already 10% done formatting. I have since let it run for 10+ hours, and it's only 60% done.

If you go into the task manager, the write speed is bouncing between 131-400 KB/s. That's abysmal. Yes, KB/s. It should be MB/s

This drive is doing the same thing my last drive was doing.

Could my disk controller on the Motherboard be going bad?

Would anything else cause this?

I've never seen a problem like this in over 15-20 years of building my own machines.

Windows 10, Maximus VI HERO z87, 16 gb ram, i7-4770k cpu
 
Solution
Hey there, e-nigma.

I'll assume you don't have any data which you need to recover since you've mentioned formatting the drive. So if this is the case, I'd suggest that you try the HDD with a different SATA port and different SATA cables (both power and data), as this could be caused by something as simple as a faulty cable or port. It would be even better if you could give it a go with a different computer as well. If that doesn't help, you should download the HDD manufacturer's diagnostic tool and test the drive for errors and bad sectors to see if anything alarming pops-up. If you still can't find anything suspicious and if it works OK when used with another computer, I'd suggest that you reset or update your BIOS/UEFI and reinstall...
Hey there, e-nigma.

I'll assume you don't have any data which you need to recover since you've mentioned formatting the drive. So if this is the case, I'd suggest that you try the HDD with a different SATA port and different SATA cables (both power and data), as this could be caused by something as simple as a faulty cable or port. It would be even better if you could give it a go with a different computer as well. If that doesn't help, you should download the HDD manufacturer's diagnostic tool and test the drive for errors and bad sectors to see if anything alarming pops-up. If you still can't find anything suspicious and if it works OK when used with another computer, I'd suggest that you reset or update your BIOS/UEFI and reinstall or update all the drivers associated with your motherboard.

Hope that helps. Please let me know how everything goes.
Boogieman_WD
 
Solution