Connected IEEE 1394 to USB Header on Z87-PRO

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Curlie

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Apr 5, 2014
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I built my first computer just yesterday. Beyond tinkering with the BIOS, I haven't used the machine much at all. Basically I wanted to check it over and tidy up the cables before installing the operating system.

When I started to do that today, I was alarmed to find that I had connected an IEEE 1394 cable to one of the USB headers.

I have seen neither physical signs of damage nor anything irregular in the BIOS but the manual clearly states that this will damage the motherboard which is a Z87-PRO.

Before going ahead, can someone explain just how much damage I should expect to have caused with this blunder?

Is this something I can perhaps live with or should I just see about replacing the motherboard straight off?
 
Solution
Hjgrove
After looking through the manual I found this:
Which is what your probably have already found.
http://www.mediafire.com/view/52v9wsg8c577zw1/example1796.png
The Motherboard should still be usable but one or more usb header may be fried.
Try putting a normal USB header into each one and see if it still identifies the devices.
But least likely you could of fried your chipset, but if your BIOS is still identifying Hard drives and other devices then you are fine.
So overall there could be some damage but there's no real way to find out until you go onto the OS, once on the os test your, sound, usb ports, hard drives e.t.c to see if the chipset has been shocked.
But that's worse case scenario.
So check the BIOS and see if its still...
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Curlie

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Yes.

I know now that this is a complete no-no and I should have just disregarded the cable since the Z87 like most Asus motherboards does not have a firewire header. But I'd just like to know how much damage I may have done.

I've looked all over for a clear answer but all I get is that it will damage the motherboard.
 
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Hjgrove

Hjgrove

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Dec 8, 2013
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After looking through the manual I found this:
Which is what your probably have already found.
http://www.mediafire.com/view/52v9wsg8c577zw1/example1796.png
The Motherboard should still be usable but one or more usb header may be fried.
Try putting a normal USB header into each one and see if it still identifies the devices.
But least likely you could of fried your chipset, but if your BIOS is still identifying Hard drives and other devices then you are fine.
So overall there could be some damage but there's no real way to find out until you go onto the OS, once on the os test your, sound, usb ports, hard drives e.t.c to see if the chipset has been shocked.
But that's worse case scenario.
So check the BIOS and see if its still identifying hard drives and check the USB headers.
Hope this helps!
 
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Solution
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Curlie

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Apr 5, 2014
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To begin with, both of the hard drives and the optical drive are visible in the BIOS system under Advanced > Sata Configuration. I also see that eight USB 2.0 and four USB 3.0 ports are enabled under Advanced > USB Configuration > USB Single Port Control.

I disconected both of the front end USB connectors from their motherboard headers then reconnected only one of them to the fourth header where I had stupidly connected the Firewire in the first place. On reboot, I found that the BIOS recognised both the mouse and the keyboard on this connection (ie: that header appears to be working) which was a big surprise and a huge relief -- at this point, I could have lived with the blunder if it only meant having the fourth header fried since it will be redundant for the foreseeable future.

I notice under Advanced > Boot that USB Support is set to Partial Initialization which says "For a faster POST time, only the USB ports with keyboard and mouse connections will be detected." I'm hoping that perhaps the Firewire-connected header was being ignored until I had the OS up and running? I'm puzzled, if very relieved, because I have seen somewhere that you can get away with connecting a USB to an IEEE header so long as you don't go so far as to insert a thumb drive into the port but that the reverse, which is what I did, will cause immediate damage.

In any case, thanks for taking the time to advise me. You've been a great help in setting my mind at rest.
 
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Hjgrove

Hjgrove

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Dec 8, 2013
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Glad to help, looks like your computer is fine then, all headers work, so does the chipset.
And as for the "Faster post time" the usb header will be still be working because it detected the keyboard and mouse anyway.
So it appears to me like no damage has been done.
Once the OS is up and running just check the Sound, USB and Hard drives.
But because of the results from the BIOS I doubt that there is going to be any problems.
If you have any more issues just come back to this thread :)
 
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Curlie

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Thanks. It will be a couple of weeks before I can install and test the OS: I'm waiting for the latest LTS release from Ubuntu, Trusty Tahr, which won't be available until the 17th of April. For several months now I've been very happily working with Ubuntu 12.04, Precise Pangolin, on my current system which is a dual boot with Windows XP. (I gave up on Windows after installing 8 on my wife's machine: they asked for so much personal information at installation that it felt like she was applying for a job with Microsoft.)

Fingers crossed, the new machine will be fine when I get the OS going. But I'll post a quick update either way.

 
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Curlie

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Apr 5, 2014
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I finally got around to loading up the OS on this machine in the past few days and the good news is that I was able to use that USB connection to transfer hundreds of megabytes of files to the home folder.

I guess I was fortunate to spot that blunder with the Firewire before I actually used it.
 
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