Windows 10: why have my 3.0 ports stops reading 2.0 flash drives?

why have my 3.0 ports stops reading 2.0 flash drives?

:)

 

Raid 0 help

Hi all, I've followed the IRST raid installation directions and I have created myself a Raid 0 volume. Rapid storage confirms my successful migration from a system disc to a raid 0 array. I'm also able to select it as my boot device in BIOS, but what I don't understand is why it is not listed in my Drives under my computer

In fact, my computer still lists my original C: drive with the original capacity. I feel as if I've miss an important step here and I'm unsure how to proceed.

 

help with raid 0

in pre post hitting tab key

initializing usb done
12280 mb ok
usb devise 1 mouse
Auto detect sata port 1 cd
2 cd
3 ocz vertex turbo 1.4
smart capable & status ok
4 wdc ----
smart status ok
6 wdc ---
smart status ok

now I finish post and next see intel matrex storage:
raid volumes

id name level stripe size status bootable
ssd raid 0 stripe 128k 178.8 normal yes



port serial size type / status


2 ocz ---- 59.6gb member disk 0
3 wdc ---- 931.5 gb member disk 0
5 wdc --- 931.5gb member disk 0


Ok, my question is in first auto detect my ports are listed 3-4- and 6
in the intel matrix storage ports are listed 2-3- and 5 ??? is this my problem and if so how did this happen .

 

USB 3.0 transfer speed drops to 0 only on one port. USB port and external drive are NOT defective.

I have a Dell XPS 13 laptop with two USB 3.0 ports. I connect a Seagate expansion drive to the left USB port and transfer a 4GB test file. It transfers about 1GB at 150MB/s and then transfer speed drops to 0. Then it picks up again after 3-4minutes, then
drops again intermittently.

I connect the same Seagate drive to the right USB port. The same 4GB file transfers with a constant speed of approximately 150MB/s. Thus the Seagate drive is not defective. Perhaps the left USB port is defective.

I connect a Sandisk 128GB flash drive to the left USB port (that is now suspected defective). It transfers the same 4GB file with constant 130MB/s speed, no speed drops!

Each step is reproducible 10x.

I am out of my wits here.