kaneorotar

starrbuck
Of course, as there is no reason for an HDD to run at over SATA 2 due to it doesn't go that fast.  It is likely hard-coded in the BIOS to use SATA 2 on the secondary drive.

So you mean the controller should automatically switch to SATA III when an SSD is attached?
 
I have no other laptops to test, but on my desktop I'm seeing Transfer Mode of "SATA/600 | SATA/600" for both HDDs and SSDs.

No, I was saying it is probably limited to SATA/300 because that's how it ships.  I will try the BIOS unlock posted above and report back.
 

So I have to uninstall Intel RST or it sets back to SATA/300.  I tried reinstalling but it goes back to 300 as well.
 
Also with Intel RST uninstalled I seem to be getting proper speeds but the CrystalDiskMark read tests will not run.  The write test runs fine and shows good speeds.
 

starrbuck
So I have to uninstall Intel RST or it sets back to SATA/300.  I tried reinstalling but it goes back to 300 as well.
 
Also with Intel RST uninstalled I seem to be getting proper speeds but the CrystalDiskMark read tests will not run.  The write test runs fine and shows good speeds.
 

You had to uninstall RST after you unlocked the bios or you did that before messing with the bios?

I had to uninstall/reinstall after changing the BIOS settings.
 
Something is still funky.  System is acting strange.

So... For me, here is what I've tried...
 
I uninstalled Intel RST and reinitialized the new SSD after copying off all the data.  Then I got version 15.7 of the AHCI drivers from this link and installed them without installing the RST application.  Then I was able to copy all the files back and the drive remained at SATA/600.  However, something I have been unable to identify seems to be causing it to revert to SATA/300 again.

Weird.
 

starrbuck
So... For me, here is what I've tried...
 
I uninstalled Intel RST and reinitialized the new SSD after copying off all the data.  Then I got version 15.7 of the AHCI drivers from this link and installed them without installing the RST application.  Then I was able to copy all the files back and the drive remained at SATA/600.  However, something I have been unable to identify seems to be causing it to revert to SATA/300 again.

Weird.
 

Revert to sata/300 in the bios? Or does the bios stay on sata/600 and Windows goes to 300?

I am on SATA3 in the BIOS and it stays that way.  It is just in Windows 10 when it goes back to SATA2.
 

starrbuck
I am on SATA3 in the BIOS and it stays that way.  It is just in Windows 10 when it goes back to SATA2.
 

I bet you windows 10 is auto downloading via windows update the proper driver for the Sata 2 hdd and each time your uninstalling and reinstalling stuff it keeps erasing it, then reinstalling it, causing it to revert to Sata 2 in windows 10. Try to watch for that and see if that’s the cause. If so, get windows update to stop that.

Hi everyone,
 
I'll have our team look into this once we get back from the Memorial Day weekend.
 
Thanks for reporting this.  I'd advise against editing the BIOS before we've looked at it, but I'll let you all know when I have an update.

fetterEsel
I bet you windows 10 is auto downloading via windows update the proper driver for the Sata 2 hdd and each time your uninstalling and reinstalling stuff it keeps erasing it, then reinstalling it, causing it to revert to Sata 2 in windows 10. Try to watch for that and see if that’s the cause. If so, get windows update to stop that.

Just checked that, and the 15.7 I manually installed is still there.  Hopefully EVGA can check it next week and provide an updated BIOS as I think this is going to be something that many people will want to do.