My UD5H has the F14 BIOS and the latest Intel USB 3.0 drivers installed; however, it looks like most of the USB 3.0 ports on this board are controlled through a VIA chip. I have benchmarked two 7200 RPM external USB 3.0 drives with ATTO while connected to front panel USB 3.0 ports (the Gigabyte supplied panel connected to a USB 3.0 MB header), rear panel USB 3.0 ports and front panel USB 2.0 ports connected to a MB USB 2.0 header. I also have a USB 3.0 card reader (replaced a USB 2.0 card reader) connected to USB 3.0 MB port.
The USB external drive benchmarks are actually a little faster on read/write speeds when connected to a USB 2.0 port than they are with USB 3.0. Connected to any USB 3.0 port on the front panel (MB headers) or rear panel (all support by VIA chipset), the speeds are the same; approx 28 MB/s write and 34 MB/s read. These drives benchmark faster (50 MB/s write; 80 MB/s read when connected to my laptop USB 3.0 ports.
Both the front-panel USB ports and the USB 3.0 card reader are connected to the USB MB 3.0 headers at the bottom of the board (USB3_2 and USB3_3) which are controlled by the VIA chip according to the UD5H manual. The USB3_1 port in the middle of the board (controlled by the Intel Z77 chipset) has a broken pin and I cannot use it.
On the Gigabyte support page for the Z77x-UD5H there are only Intel USB 3.0 drivers. There are no VIA USB 3.0 drivers. The UD3H has VIA USB 3.0 drivers in addition to Intel. The VIA chip on the UD5H appears to be the VIA VL810. I tried installing the VIA drivers from the UD3H download page as well as directly from the VIA site for the VL810. In both cases, the appropriate hardware was not detected and nothing was installed.
All USB ports are functional, I am just not getting USB 3.0 speeds from any USB 3.0 port. They all appear to function at USB 2.0 speeds only. Any ideas?
All xHCI settings in BIOS are set to Auto and all HS Port #1-4 Switchable settings are enabled.
OS is Windows 7 64-bit
Here is what I see in Device Manager:
The USB external drive benchmarks are actually a little faster on read/write speeds when connected to a USB 2.0 port than they are with USB 3.0. Connected to any USB 3.0 port on the front panel (MB headers) or rear panel (all support by VIA chipset), the speeds are the same; approx 28 MB/s write and 34 MB/s read. These drives benchmark faster (50 MB/s write; 80 MB/s read when connected to my laptop USB 3.0 ports.
Both the front-panel USB ports and the USB 3.0 card reader are connected to the USB MB 3.0 headers at the bottom of the board (USB3_2 and USB3_3) which are controlled by the VIA chip according to the UD5H manual. The USB3_1 port in the middle of the board (controlled by the Intel Z77 chipset) has a broken pin and I cannot use it.
On the Gigabyte support page for the Z77x-UD5H there are only Intel USB 3.0 drivers. There are no VIA USB 3.0 drivers. The UD3H has VIA USB 3.0 drivers in addition to Intel. The VIA chip on the UD5H appears to be the VIA VL810. I tried installing the VIA drivers from the UD3H download page as well as directly from the VIA site for the VL810. In both cases, the appropriate hardware was not detected and nothing was installed.
All USB ports are functional, I am just not getting USB 3.0 speeds from any USB 3.0 port. They all appear to function at USB 2.0 speeds only. Any ideas?
All xHCI settings in BIOS are set to Auto and all HS Port #1-4 Switchable settings are enabled.
OS is Windows 7 64-bit
Here is what I see in Device Manager:
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