Mediasonic Probox USB3/eSATA non-raid -- USB3 not working, but USB2 works

[William Park]

Does anyone have working Mediasonic Probox USB3/eSATA non-raid box?

I just bought 
    Mediasonic Probox (4-bay non-raid enclosure)
    Model: HF2-SU3S2 rev.2
    Serial: MAY1301327

When connected via USB3, it is not recognized by the computer, and
harddisks do not show up at all.  Nothing in dmesg.

However, when connected via USB2, it works.  Probox's JMicron chipset is
recognized, and I can see all harddisks (3 x 3TB).  Kernel output is as
follows:
    Dec 29 18:48:42 node1 kernel: [354203.357812] usb 2-5: new high-speed USB device number 5 using ehci-pci
    Dec 29 18:48:42 node1 kernel: [354203.483253] usb 2-5: New USB device found, idVendor=152d, idProduct=0539
    Dec 29 18:48:42 node1 kernel: [354203.483267] usb 2-5: New USB device strings: Mfr=10, Product=11, SerialNumber=5
    Dec 29 18:48:42 node1 kernel: [354203.483274] usb 2-5: Product: USB to ATA/ATAPI Bridge
    Dec 29 18:48:42 node1 kernel: [354203.483280] usb 2-5: Manufacturer: JMicron
    Dec 29 18:48:42 node1 kernel: [354203.483285] usb 2-5: SerialNumber: 000000000000

Specs for computer side are:
    OS: Linux 3.12.6
    Motherboard: Asus M5A97
    USB3 chipset: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller [1b21:1042]
    USB2 chipset: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396]

I emailed Mediasonic.ca, but I might get faster response from TLUG.
-- 
William
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