AHCI mode is deactivated in Samsung Magician

[Guest]

I noticed that Samsung Magician shows that my 840 Pro is not connected in AHCI mode. However, in BIOS I can clearly see that SATA configuration is in AHCI mode, as well as all the drivers for AHCI from Intel are in place.

What am I missing?

Bug in Samsung Magician?

 

[Dereck47]

Your motherboard has 6 SATA 3 (6Gb/s) ports.
Double-check that your SSD is connected to one of the Intel 6Gb/s ports (SATA6G_1 or SATA6G_2), not to one of the ASMedia 6Gb/s ports (SATA6G_E1 thru SATA6G_E4).
See page 1-38 of your motherboard manual for the location of the ports.

Also, are you using Intel's latest AHCI drivers? https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=22271

 

[Guest]

Your motherboard has 6 SATA 3 (6Gb/s) ports.
Double-check that your SSD is connected to one of the Intel 6Gb/s ports (SATA6G_1 or SATA6G_2), not to one of the ASMedia 6Gb/s ports (SATA6G_E1 thru SATA6G_E4).
See page 1-38 of your motherboard manual for the location of the ports.

Also, are you using Intel's latest AHCI drivers? https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=22271

Awesome it worked!

My 840 Pro was connected to ASMedia 6 Gbps port, which actually should support AHCI mode and only AHCI mode as per the mobo's manual, I wonder why it doesn't in the real life...

But anyway, I reconnected the drive to the Intel port and Samsung Magician can finally see it in AHCI SATA mode. Also, it bumped up all speeds and overall benchmarking score by ~35!

Thank you!

 

[Dereck47]

The ASMedia ports support AHCI mode, and your SSD is in AHCI mode, it's just that the Samsung Magician software can't recognize it.

Glad you got everything straightened out!

 

[Guest]

The ASMedia ports support AHCI mode, and your SSD is in AHCI mode, it's just that the Samsung Magician software can't recognize it.

Glad you got everything straightened out!

Do you know how come performance got bumped up by 35% just by switching from one brand of 6 Gbps SATA port controller to a different one?

 

[Dereck47]

All current generation SSDs need to be connected to native 6Gb/s ports to achieve advertised Read/Write speeds.
If you have an Intel chipset based motherboard then you need Intel 6Gb/s ports for maximum performance. If you have an AMD chipset based motherboard then you need AMD 6Gb/s ports for maximum performance.

3rd party 6Gb/s controllers such as ASMedia and Marvell can't handle the speeds of the latest SSDs.