This video may help. Not in English (Spanish I believe..which may be fine depending on your region) but the steps are easy to follow.

Speedstep shows the fix much better than the video. And if you choose jumpers you can find them here as well as a number of sources.

I can confirm that for the Precision 3640, jumpering pins 7 and 8 does not work. 

@mauricev 

@Mizan-bd 

@JOcean 

Precision 3640 is not the same as 390 790 990 3010 7010 9010 3020 7020 9020. 3640 is worse because there are ribbon connectors now instead of pins and headers for some cables AND there is no I/O shield its built into the case.

HarbinRepairs Del MB Header Adapters

https://www.youtube.com/watch?v=3fb6-B5Ux_s

The Precision 3640 has the same connector as illustrated above for this, so it’s at a point where I’m even wondering whether there is such thing as a defective jumper! 

However, there is one huge difference. Without the cable attached, it doesn’t have the F1 to continue option. It has F1 to retry the boot.

Maybe short out the pins using something metal? 

Is there anything else I can use that I don’t have to pay for, for the front panel error to go away. I switched the case into a modern case and I have this error. 

@speedstep​ legend it works

@speedstep​  haha i had the same error message on my 3010 and i ran onboard diagnostics and it was just my USB mouse and keyboard lol