- Jul 26, 2018
- MSI Pro Z690-A DDR4
- RX 580
- Mobile Phone
I have am having trouble dumping the ROM on the EX 4-TR. I have both a 3.3 & 5 volt flasher, but neither work. Does this need a capacitor? Is there a modified ROM already? And is there a SSDT for it?
Interesting- I find this only works with an Apple TB3 to TB2 adapter. The Startech adapter is not working.
I was able to capture the OEM Firmware with my 3.3v chip reader, but it was a major hassle. I believe there's a post on the z390 thread about using proper copper Dupont cables on the clip with these Macronix chips. I'll search for it in a bit and update this post.
I actually assumed that I ruined my chip so I sent the card off to have the chip removed and replaced with a socket so I could keep testing as we learn about Maple Ridge firmware. I also installed a socket on the daughter board of my chip reader. It reads super well and is very easy to operate. However no luck with the modifications just yet.
Attached is the SSDT I use. Make sure to replace PEG1/PEGP with RPXX/PXSX.
Even though the card works with no header attached, I do believe we need to a have a Thunderbolt Controller on our motherboards. So, make sure its all enabled in BIO.
One note about using the card on a board without a Thunderbolt Controller. I've been able to fully disable Thunderbolt in BIOS and still see the EX4 in IOReg. However, once I power on a device it crashes macOS. I'm going to attempt this again tonight but with AppleThunderboltNHI.kext loaded first.