MAXIMUS IV EXTREME P67 USB 3.0 Ports Not Working

[Retired]

Hi Guys,

I've just recently (2 days ago) built my new machine using the mobo mentioned in the title and have just realised that 4 of the 3.0 slots do not function. the 4 nearest to the PS/2 connections.

I have tried updating the bios, chipset and have reinstalled Windows 7 Ultimate (64-bit) but it still persists.

I have a Haf X with 4 ports on the front that work fine so could that be why? my friend tells me that it shouldn't affect the mobo USB slots so i'm a bit worried.

Any help would be greatly appreciated.

Thanks,

James

[Raja]

Have you installed the USB 3.0 drivers from the installation disc?

[Retired]

Hi Raja,

Yes I have, I've also tried the drivers on the support site for the mobo. The lowest four 3.0 slots work perfectly but I get nothing from the top four still.

[broncogr]

My haf-x only works if I plug the 2 USB3 ports in the back usb using loopthrough.
If I use the motherboard USB3 header, the Haf-x usb3 front ports work with usb2 devices but are extremly unstable with USB3.
I have a maximus iv extreme z
I have concluded that either the Haf-x usb3 internal header and the motherboard internal header are not compatible.
Or that the usb3 header in my extreme z motherboard is bad...

[Retired]

I'm currently at work at the moment but i'm going to have a proper look later. Would attaching the Haf x ports (4 I have) to the mobo header disable ports at the back of the mobo? I didn't think it would affect it but it might be the case as I have 4 working on the front of my haf x and four not working round the back.

I'm really hoping i'm missing something as I really don't want to dismantle this rig to replace the mobo as I have very little time to use the machine as it is currently.

[broncogr]

Haf x has 2 usb2 ports via internal header and 2 usb3 ports either via internal header or via loopthrough.
my usb2 ports work fine.
My usb3 ports when on mb header dont work right. That is they work badly with a usb3 hard disk I have having it swith on and off continiously but they work fine with usb2 devices.
The usb3 ports also work fine when plugged to the back with a loopthrough.
Regardless my back usb3 ports always work fine.
Remind you I have a z

[Zolutar]

I found this problem cropped up after my last Bios update. I managed to get them workin again after a driver uninstall, full power down (and unplugged, mb discharged)

however now the ports initialize but still dont work properly.
I hope asus is on it, but I am almost positive the update to 902 buggered the ports as they worked perfectly fine before.

[Retired]

I've managed to fix the problem by powering down and resetting the cmos. the problem is an unknown device in device manager which reappears after a while, even once the fix has been applied. The ports that don't work switch as well as earlier 2 didn't work rather than 4. Can someone at Asus get back to me and tlel me whether they have a permenant fix for this? I dont really want to send my mobo back.

Thanks

[Retired]

Can anyone tell me how to remove this unknown device or where to find drivers for it? It's the only thing I can see that could be causing this problem!

Asus? Anyone? I'm sure I cant be the first to have this issue as i've seen a few other posts on google.



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[pahom]

у меня та же проблема детально описанная в этом посте
хотелось бы услышать от инженеров компанинии асус обяснение
и что делать


Edit This is a English forum please use google translate if you get stuck.

I have the same problem as described in detail in this post
I would like to hear from engineers kompaninii ADR explanation
and what to do