Intel Rapid Storage Technology impact on USB HDD

My new external HDD (WD My Passport 2TB, USB powered) benched 34/27 MB/s read/write out of the box. I then installed Intel Rapid Storage Technology driver and suddenly i got 110/110 MB/s.
But when i pul out the harddisk for some time, maybe after a restart of the computer, the speed is slow again!
If i rerun the IRST install i have high speed again.
How do i get high speed all the time?
7 answers Last reply
More about intel rapid storage technology impact usb hdd
  1. You can't.
    Intel RST caches frequently used data so its not getting read thru the slow usb interface.
  2. Could you elaborate on that please?
  3. popatim said:
    You can't.
    Intel RST caches frequently used data so its not getting read thru the slow usb interface.


    Will i have the same problem if i buy a USB pen drive (flash) instead og could i get full speed from that?
  4. 35mb/s is full speed for a usb2 port....
  5. I'm thinking your problem isn't RST but rather a USB3 not always detecting your drive as USB3 and falling to USB2.
  6. popatim said:
    I'm thinking your problem isn't RST but rather a USB3 not always detecting your drive as USB3 and falling to USB2.

    Any idears on how to correct that? My OS is Windows 8.1
  7. Nope, this is a common win8 issue along with the drive constantly going offline and not being detect on startup/restart if its already connected... Its a driver issue that MS is supposedly working on.
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