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EHCI enabled or disabled in BIOS?

post #1 of 2
Thread Starter 
My Rampage III has EHCI enabled by default, but the description says to enable it as a work around for an OS without EHCI support. I'm running Windows 7 so I would image that I don't need it, but I really don't know much about it. I just installed this board and only 2 of my usb ports are working. What setting is best?
    
CPUMotherboardGraphicsRAM
i7 980x Rampage III Extreme 2 x Sapphire 5970's Crossfire d 12gb GSKill Tridents 
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4x OCZ Vertex II RAID 0 Windows 7 64bit Corsair 1200w Silverstone TJ07 
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CPUMotherboardGraphicsRAM
i7 980x Rampage III Extreme 2 x Sapphire 5970's Crossfire d 12gb GSKill Tridents 
Hard DriveOSPowerCase
4x OCZ Vertex II RAID 0 Windows 7 64bit Corsair 1200w Silverstone TJ07 
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post #2 of 2
"Enhanced Host Controller Interface" as i have come to understand it should always be on, as its a controller only for USB2. USB1 / low-speed USB is done by the OS.

Leave the option on and it eliviates a task for the OS.
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Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz Gigabyte P55A-UD7 2 x XFX Radeon HD5770 4 x 4GB Corsair Dominator GT DDR3 PC£-12800 
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Western Digital VelociRaptor 300GB Pioneer DVD-RW Windows 7 - 64bit Home Premium Hannspree 28" @ 1920x1200 
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My baby
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz Gigabyte P55A-UD7 2 x XFX Radeon HD5770 4 x 4GB Corsair Dominator GT DDR3 PC£-12800 
Hard DriveOptical DriveOSMonitor
Western Digital VelociRaptor 300GB Pioneer DVD-RW Windows 7 - 64bit Home Premium Hannspree 28" @ 1920x1200 
KeyboardPowerCaseMouse
Saitek Cyborg + n52te Corsair TX 950W Antec 902 Razer Naga Molten Edition 
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