No change
I think the BIOS may be corrupted. Either that or I killed the motherboard somehow. When I try to boot without the EC chip, I no longer get a beep code....

Recently picked up an HP EliteDesk 800 G6 (Product 3E2E2US, Serial MXL1093CPH, Motherboard DA0F93MB6F0 Rev F) at Goodwill but the BIOS was locked. I desoldered and dumped both the BIOS chip (GD25B256D) and the EC chip (MX25L12873F) on my TL866II+. I ran the EC image through RCunlocker (it said it succeeded) and reflashed the EC chip. I also cleaned the ME Region of the BIOS using the guide from Level1Techs.

Unfortunately the machine no longer POSTs. The fan comes on at full speed as soon as I plug the machine in, then eventually ramps down, but that's it. No beep or flash codes at...

Trying to unlock an HP mini desktop I found at Goodwill but I think I killed it lol