Low Transfer Speed Troubleshooting

[ShadowWolf810]

So I've been trying to diagnose this for awhile... The problem is my home PCs transfer speeds. USB 3 drives get about 20 MB/s transferring files here, and on a Mac at school the same drive gets about 70 MB/s with the same connecting wire and same test software. ATTO and Black Magic Disk Speed Test

 

At home I have an X99 PC. And between an internal card reader, case headers, USB 3.1 PCIe card and the motherboard's USBs itself, there are a lot of USB ports and devices plugged in. After doing a bunch of tests the transfer speeds seem to be the same no matter where I plug the drive in. So originally I thought it was a bandwidth problem. So I unplugged every USB device, card, etc, so that the only things connected were keyboard and mouse, and the drive I was testing, but this didn't increase speed any.  

 

So I figured maybe its a power delivery issue and the drives aren't able to spin fast enough? Any ideas how I'd go about fixing that, or any other thoughts? 

[ShadowWolf810]

bump

[KeemoSabe]

Transfer speed also rely to the read and write speeds of your storage. Are you using a HDD or an SSD? Mac usually have SSDs.

[ShadowWolf810]

On 3/17/2017 at 1:49 AM, KeemoSabe said:

Transfer speed also rely to the read and write speeds of your storage. Are you using a HDD or an SSD? Mac usually have SSDs.

For these test I was using an external USB 3.0 HDD, and testing on a PC at home and then taking it to a Mac and testing it there. The point is that the same drive is getting significantly different transfer speeds on my PC and on the Mac. So it doesn't really matter what the max read and write speed is for the drive because the maximum is the same in either test but the resulting one is much different. 

[ShadowWolf810]

@KeemoSabe

 

I just posted a video in another thread in "storage devices" that shows some of the weirder issues I'm having at home. Here it is.