Hello,
In brief... could someone please help me understand my bottleneck using USB 3.0 devices? I just bought a Sigg Inc USB 3.0 PCIe add in card with bay hub and when transferring files to a portable HD (also USB 3.0) I'm only getting an avg of 70mb/s data transfer rate. I've updated every driver I can think of and windows appear to recognize the portable HD as 3.0 however when I look through device manger most of my USB hubs are listed as either High Speed or Full Speed including the 3.0 hub. Would moving the add on card from the PCIe x1 slot to my available PCIe 2.0 x16 slot help. (would that drop my graphics card to x8)? I wasn't expecting the 5gb/s obviously but I thought I'd be close to 250 mb/s range...
Specs:
Windows 7 64bit SP1
Phenom II X4 965 Black 3.4 GHz (NO OC)
ASUS M4A79XTD EVO MB
16gb (4x4) CORSAIR XMS3 DDR3 1333
Single XFX - ATI Radeon HD 4670
1 500MB Barracuda 7200rpm 3GB/s HD
1 1TB Barracuda 7200rpm 3GB/s HD
Siig Inc USB 3.0 PCIe i/e w/ 4 port bay hub
WD Passport USB 3.0 portable HD 1TB
In brief... could someone please help me understand my bottleneck using USB 3.0 devices? I just bought a Sigg Inc USB 3.0 PCIe add in card with bay hub and when transferring files to a portable HD (also USB 3.0) I'm only getting an avg of 70mb/s data transfer rate. I've updated every driver I can think of and windows appear to recognize the portable HD as 3.0 however when I look through device manger most of my USB hubs are listed as either High Speed or Full Speed including the 3.0 hub. Would moving the add on card from the PCIe x1 slot to my available PCIe 2.0 x16 slot help. (would that drop my graphics card to x8)? I wasn't expecting the 5gb/s obviously but I thought I'd be close to 250 mb/s range...
Specs:
Windows 7 64bit SP1
Phenom II X4 965 Black 3.4 GHz (NO OC)
ASUS M4A79XTD EVO MB
16gb (4x4) CORSAIR XMS3 DDR3 1333
Single XFX - ATI Radeon HD 4670
1 500MB Barracuda 7200rpm 3GB/s HD
1 1TB Barracuda 7200rpm 3GB/s HD
Siig Inc USB 3.0 PCIe i/e w/ 4 port bay hub
WD Passport USB 3.0 portable HD 1TB