Question My motherboard has a 10 pin usb header and case has standard 9 pin

Dec 6, 2020
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I recently got a cupertino 3 motherboard from a HP Pro 3500 mid tower. I just slapped it into a case I had and hooked everything up. To my surprise there were mostly standard connectors except for the usb 2.0 headers. They are a strange 10 pin header that I haven't seen before. I just figured the 9th pin in standard case headers are nothing anyway so I just hooked it up with the 8 pins that are available and left the 2 outside pins out. This works except you can only use one of the usbs on the case at a time. When you try to use both one of them fails.

Is there an adapter I need to use or has anyone come across this before and have any insight on what is happening for me to better understand the issue. I would like to be able to use both of the usb 2.0 on the front of the case but now that doesn't seem like it is a possibility. Like I said any insight here would be much appreciated.

Here is the motherboard I am using:





And here is the standard usb connector that is on my case used for the front panel usb 2.0

 
I recently got a cupertino 3 motherboard from a HP Pro 3500 mid tower. I just slapped it into a case I had and hooked everything up. To my surprise there were mostly standard connectors except for the usb 2.0 headers. They are a strange 10 pin header that I haven't seen before. I just figured the 9th pin in standard case headers are nothing anyway so I just hooked it up with the 8 pins that are available and left the 2 outside pins out. This works except you can only use one of the usbs on the case at a time. When you try to use both one of them fails.

Is there an adapter I need to use or has anyone come across this before and have any insight on what is happening for me to better understand the issue. I would like to be able to use both of the usb 2.0 on the front of the case but now that doesn't seem like it is a possibility. Like I said any insight here would be much appreciated.

Here is the motherboard I am using:





And here is the standard usb connector that is on my case used for the front panel usb 2.0

I recently got a cupertino 3 motherboard from a HP Pro 3500 mid tower. I just slapped it into a case I had and hooked everything up. To my surprise there were mostly standard connectors except for the usb 2.0 headers. They are a strange 10 pin header that I haven't seen before. I just figured the 9th pin in standard case headers are nothing anyway so I just hooked it up with the 8 pins that are available and left the 2 outside pins out. This works except you can only use one of the usbs on the case at a time. When you try to use both one of them fails.

Is there an adapter I need to use or has anyone come across this before and have any insight on what is happening for me to better understand the issue. I would like to be able to use both of the usb 2.0 on the front of the case but now that doesn't seem like it is a possibility. Like I said any insight here would be much appreciated.

Here is the motherboard I am using:





And here is the standard usb connector that is on my case used for the front panel usb 2.0

Another reason I don't like working on OEM MBs from brand name computer makers, they always have to do "something special" to force you to use their parts.
Normal USB1/2 uses 4pins in one row for each channel with 9th pin as a locator so you can't insert it wrong way. 9th pin has no other function.
I'm also stumped by 10 pins but there's clearly a space where 9th pin should be. Both channels on both headers should work even without those 2 other pins.
 

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