ASRock Z97 extreme6 and external eSATA hard drive (Samsung HM500JI)

Dawid Kielak

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Dec 20, 2014
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I am experiencing the following problem with the ASRock Z97 extreme6 motherboard and and external hard drive (Samsung HM500JI). The drive has a usb and esata cables, and both need to be connected for the drive to work. It does work perfectly fine with two other computers (including one with windows 7), so the cables seem to be fine.

Connecting the drive to my newest computer produces the following: the drive's icon appears in windows explorer (in `Computer'), but without the usual bar indicating capacity. When I try to explore the drive or to view the drive's properties, windows explorer crashes. The 'safely remove hardware' icon appears, but autorun does not start. The Intel rapid storage does not open (if I open it before connecting the drive, it crashes). Similarly for the Disk Management in the Computer Management window. Connecting the drive also disrupts Task Manager -- it opens, but does not react to clicking on the `show processes of all users'. Also the system doesn't turn of properly (freezes on `shutting down'). The effects persist even if I unplug the drive.

The weird thing is that I managed to get the drive running ONCE -- I changed the ASmedia SATA mode (controlling the eSATA connector) to IDE in BIOS, and removed Intel Rapid Storage. The disk worked correctly then; it had the FAT32 system, so I decided to fomat it into NTFS. After that I tried if it will work with the ASMedia SATA mode set back to AHCI, but it did not. Now it doesn't work in either the IDE or AHCI mode -- the behaviour is just as described above.

I should probably add that when I connect the drive before booting, it is visible in BIOS. Then the computer starts booting from the internal drive, but freezes on the windows logo.

I am using windows 7.
 
Solution
It appears the drive isn't getting enough power and not all motherboards like when a drive is connected via 2 different interfaces at the same time; that certainly is the case with a couple motherboards I own. My eSATA drives have external power and my small laptop hard disk is in a USB 3.0 case that has 2 USB connectors: one for power (has to be connected first) and one for data.
It appears the drive isn't getting enough power and not all motherboards like when a drive is connected via 2 different interfaces at the same time; that certainly is the case with a couple motherboards I own. My eSATA drives have external power and my small laptop hard disk is in a USB 3.0 case that has 2 USB connectors: one for power (has to be connected first) and one for data.
 
Solution

Dawid Kielak

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Dec 20, 2014
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4,510
Your answer suggested an experiment to me: I connected the eSata to the new machine, and usb to another computer (I think the drive gets its power this way) -- and it works!

It seems that it only works if the usb is connected first.

EDIT: this was a reply to the post by i7Baby; it seems that what I did agrees completely with what GhislainG is saying.