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Windows 7: Front USB ports causing crashes/BSODs

29 Jan 2012   #11
Lord Method Man

Windows 7 Ultimate x64
 
 

Found another instance of a seemingly identical problem, right down to it sometimes happening when the device only touches the USB port:

Case front USB port causing BSOD - EXTREME Overclocking Forums


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29 Jan 2012   #12
writhziden

Windows 7 Home Premium 64 Bit
 
 

You may want to look at a thread I helped in: http://www.sevenforums.com/crashes-d...ml#post1716819 and specifically the link I found: Front panel USB freezes computer [Archive] - Technibble Forums
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30 Jan 2012   #13
Phone Man

Windows 8.1 Pro w/Media Center 64bit, Windows 7 HP 64bit
 
 

Quote   Quote: Originally Posted by writhziden View Post
You may want to look at a thread I helped in: http://www.sevenforums.com/crashes-d...ml#post1716819 and specifically the link I found: Front panel USB freezes computer [Archive] - Technibble Forums
The OP on that link found his problem:

Quote:
I finally found the problem! I took apart the computer again and removed the I/O shield plate (Asus Q-Shield) and reinstalled the motherboard into the original case. I made certain not to make any other changes. Now the front panel USB works perfectly!

Upon further investigation, it looks like the thick, metal portion of the Q-shield may have been touching the side of the motherboard, causing a short. (Asus Q-Shield's have a thick completely conductive back padding.)
Jim
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30 Jan 2012   #14
Kevin Ismail

Windows 7 Ultimate x64
 
 

Hi.
I had almost similar issues before. The problem gets even worst when a device with higher power consumption is plugged (mostly ext HDD). In my issue, I found some PC case have its front panels with undersized cable. Some also got less intact by being accidentally pulled while assembling the machine. You might have to unplug it from the header and inspect thoroughly the cable assembly and every of its soldering point. Use any available multimeter.

Mas Catoer

Note: Glad to know it was solved...
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30 Jan 2012   #15
Lord Method Man

Windows 7 Ultimate x64
 
 

That was another thread, mine hasn't been solved quite yet. I took my case apart and moved the front port connector to another USB connector on my motherboard, and I also connected a rear USB bracket to the connector that the front ports used to be hooked to. So far today I have been unable to recreate the problem on either of the ports.

I have contacted Antec customer support because I suspect the problem could be with the front ports themselves, primarily due to the crashes that have occured when the device wasn't even inserted yet.
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30 Jan 2012   #16
Lord Method Man

Windows 7 Ultimate x64
 
 

Just confirmed that the problem does in fact happen with the front ports connected to a different USB header on the motherboard. Once again it occurred as soon as the connector housing touched the front port contacts.
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31 Jan 2012   #17
Kevin Ismail

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Lord Method Man View Post
Just confirmed that the problem does in fact happen with the front ports connected to a different USB header on the motherboard. Once again it occurred as soon as the connector housing touched the front port contacts.
Sorry. I might misread it.
Did you do check the cable connection by unplugging the USB socket from the USB header on your motherboard, use a multimeter and find out if there is any shortcut among the pin-out on front panel assembly. Especially the pin of the "data+" and "data-" against VCC (5 volts) and GND (ground). Two possibilities can be suspected. First, there might be any shortcut between those pins. Second, it's normal, but time can wear them out, making some of the ends is getting loose and the shortcut just happen when something is plugged into it. (might not be the device).

Worth to try I guess.

Mas Catoer
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31 Jan 2012   #18
Lord Method Man

Windows 7 Ultimate x64
 
 

Antec is sending out a replacement front-panel assembly. Until then I am avoiding using these ports. I have a rear USB bracket connected to the other motherboard header and have been testing it regularlarly without problems.
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01 Feb 2012   #19
Kevin Ismail

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Lord Method Man View Post
Antec is sending out a replacement front-panel assembly. Until then I am avoiding using these ports. I have a rear USB bracket connected to the other motherboard header and have been testing it regularly without problems.
Well. Good to hear that.

Wish you're my next door, so then I can have the cure of my curiosity about your troubled front panel assembly.
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 Front USB ports causing crashes/BSODs




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