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Windows 7: ASUS P8Z68-V BIOS Settings


13 Oct 2011   #1

Windows 7 Ultimate x6
 
 
ASUS P8Z68-V BIOS Settings

In my motherboard's BIOS settings, there are three USB settings that can be changed.

1.) USB Legacy Support
2.) USB 3.0 Legacy Support
3.) EHCI Hand-off

I'm at Windows 7 x64, do I need to disable them all?

Would keeping the USB/USB 3.0 Legacy Support enabled still use the driver installed in Windows 7 or will it override and use the built-in USB drivers in the motherboard?

How about EHCI Hand-off?


My System SpecsSystem Spec
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13 Oct 2011   #2

Windows 7 Pro x64 SP1 and Mac OS X 10.8.3
 
 

No, do not turn them off.
My System SpecsSystem Spec
13 Oct 2011   #3

 

For Windows 7 and forward use both legacy support enabled and EHCI off by default.
My System SpecsSystem Spec
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14 Oct 2011   #4

Windows 7 Ultimate x6
 
 

Quote   Quote: Originally Posted by DMHolt57 View Post
For Windows 7 and forward use both legacy support enabled and EHCI off by default.
Why? Windows 7 has their own drivers right? Won't they interfere with Windows 7's native drivers when enabled?
My System SpecsSystem Spec
18 Oct 2011   #5
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

The way I understand it "USB Legacy Support" is what lets you access your BIOS with a USB keyboard. If you disable it and don't have a PS2 keyboard connected you won't be able to access your BIOS settings.
My System SpecsSystem Spec
18 Oct 2011   #6

Windows 7 Ultimate x6
 
 

Quote   Quote: Originally Posted by alphanumeric View Post
The way I understand it "USB Legacy Support" is what lets you access your BIOS with a USB keyboard. If you disable it and don't have a PS2 keyboard connected you won't be able to access your BIOS settings.
Yup but when you enable that setting won't it interfere with Windows 7? Will Windows 7 use its own native USB drivers if that is enabled?
My System SpecsSystem Spec
18 Oct 2011   #7
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

I don't think it has anything to do with drivers and nothing to do with windows 7. Enabling it causes a USB keyboard to be emulated as a PS2 keyboard in BIOS. I could be wrong but thats my understanding. It sounds like you're going to disable them anyway so go ahead and do it and see what happens.
My System SpecsSystem Spec
18 Oct 2011   #8

Windows 7 Ultimate x6
 
 

Quote   Quote: Originally Posted by alphanumeric View Post
I don't think it has anything to do with drivers and nothing to do with windows 7. Enabling it causes a USB keyboard to be emulated as a PS2 keyboard in BIOS. I could be wrong but thats my understanding. It sounds like you're going to disable them anyway so go ahead and do it and see what happens.
I do plan on disabling them because I'm not gonna use them. Oh and even if they are disabled, I can use my usb mouse and usb keyboard in the UEFI BIOS. It's just that I cannot use them in legacy operating systems and even in DOS. My main concern though is that if they are disabled won't it affect Windows 7 in any way?
My System SpecsSystem Spec
18 Oct 2011   #9
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

I don't know to be honest, I thought I knew what that setting meant but a Google search has me wondering if the meaning hasn't changed over the years.
My System SpecsSystem Spec
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 ASUS P8Z68-V BIOS Settings




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