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- HP Community
- Desktops
- Desktop Hardware and Upgrade Questions
- 800 G2 USB pinouts / sense pins

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07-31-2023 09:03 AM
I upgraded my EliteDesk 800 G2 TWR to use a larger video card and larger case. The new graphics card blocks access to one front panel USB motherboard connector. I further removed the other USB connector to remove clutter. Unfortunately, both USB's are custom pin configurations with sense / cable detect. Thus I receive "41A-FrontUSB 1 / 2 Not Connected" errors.
I'd like to jumper the cable-detect pins to ground to remove the error. Can anyone post a pinout or tell me which pins I need to bridge to remove the errors for USB 2 and 3?
Solved! Go to Solution.
Accepted Solutions
08-08-2023 06:12 PM
Well, I tried it! 8/12 for the USB2 (12 pin) and 7/10 for the USB3 (20 pin) worked like a charm.
Small notes: the pin numbering system is different between the two. USB2 has all odds on one side, while USB3 has 1-10 pins on one side. I used female breadboard style jumper wires. They were quite loose on the thinner USB3 pins, so I removed the plastic housing and crimped the little metal sleeve inside to make them more snug.
07-31-2023 09:30 AM
There is a video on YouTube which shows what is claimed to be the fix for the error.
I do not recommend or guarantee in any shape form or fashion that it will work.
We have a do no harm policy in the forum, so if you try what is done, there the risk of any possible damage is all yours.
https://www.youtube.com/watch?v=XwZD3V4rkaY
I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"
07-31-2023 10:34 AM
The USB2 on an 800 G2 has a different pin configuration than in the video shown. It's a 12 pin header vs the standard 10 pin header. I suspect that I need to bridge pins 8 and 12. I trust the video's USB3 7/10 pin bridging will work for the 800 G2, but I also have no idea what happens if I screw this up.
08-08-2023 06:12 PM
Well, I tried it! 8/12 for the USB2 (12 pin) and 7/10 for the USB3 (20 pin) worked like a charm.
Small notes: the pin numbering system is different between the two. USB2 has all odds on one side, while USB3 has 1-10 pins on one side. I used female breadboard style jumper wires. They were quite loose on the thinner USB3 pins, so I removed the plastic housing and crimped the little metal sleeve inside to make them more snug.