Primary hdmi plug wiring diagram - I may want to handiest anticipate that what make atm the exp gdc paintings properly with the v2.0 link, it is the truth there is no interference from the cable, mainly by the usb facts! The exp gdc cable is definitely realistic to em noise, wireless, smartphones, home electric powered furniture, etc. => i truely observed a large development have been there is a lot of emi, i.E while my washing gadget is walking. I did not notice any hyperlink/display screen corruption this time, changed into strange considering the fact that i idea approximately it a long way after whilst i was putting the cloth to dry! Op success! ^^.
This collectively let me assume, if i didn't discover any pin for usb information /-, it's far substantially possibly the usb didn't work or the usb is routed on pci-e by means of a new unknown darkish era! I assume they included in the design within the preceding construct, maybe, on the next design v9.Zero, the usb port is replaced by means of the 2d hdmi connector for the pci-e lanes three/4. I realize this is an antique thread, but i simply desired to mention thanks to wimpzilla for developing this diagram for the community! I was having issues with unfastened wiring within the mpcie a part of the cable (because of lots of repeated use) and way to this i used to be able to each restoration the cable and shorten it by means of 15cm.
Also, regarding the usb. I think i have observed why it in no way labored for mpcie notwithstanding it running for human beings like my friend who uses expresscard for his egpu setup. As you recognized, the information lines are not wired up to the mpcie end, but this is now not the whole tale. It turns out that when you have the hdmi ethernet fashion cable like i do (or style your very own cable), the ones lines do in fact exist, and pass all the way to the adapter pcb, wherein they do not hook up with anything..... What's exciting here is that on the pcb, further to the 9 connections needed for the egpu there are unsoldered contacts. Thinking these might be usb, i checked the continuity and it appears they're in reality connected to the smbus pins of the mpcie. Perhaps this turned into an blunders at the a part of the designers or they delivered them most effective to understand they were unneeded (within the identical way as all the unpopulated components).?in any case, as i made my cable shorter i had some excess at the 5 free wires within the cable, so checked continuity and observed that the crimson wire in the package deal with ground, three.3v and so forth is d- and the white twine inside the neighbouring package deal is d , so i cautiously soldered them without delay to the mpcie contacts and it really works!.