Sure, but no need for attribution, I just followed the Dortania's guide part regarding CFG_Lock turn off, when I "hackintoshed" my M720Q. Thanks to this guide, I understood it was possible to modify other hidden Bios features, we're lucky Lenovo didn't lock it! On the Lenovo thread, brandon099 did a good job at explaining the process to enable thunderbolt card support on M720Q after I explained him the basics by private messages, so I suppose attribution should go to him and dortania who provided easy guides.Thanks very much for this. Would you be ok if I added this to the original post (with attribution to you, of course)?
Some examples, my M720Q bios version is
-enable Thunderbolt 3 card to function on M720Q (spare part 01AJ968 ):
setup_var_cv Setup 0x521 0x01 0x01
-Turn Off CFG-Lock (mostly for hackintosh I suppose):
setup_var_cv Setup 0x721 0x01 0x00
-Allow CPU undervolting and PL1 PL2 settings with tools like throttlestop, Voltageshift (for hackintosh), intel-undervolt (linux,didn't try this yet but will do). I Was very motivated by this one because I've installed an ES i9 9900 in my M720Q, so, the cooler the better (even replaced the default aluminium heatsink by the copper one which equips M920x/P330, spare part 01MN631)...
setup_var_cv Setup 0x7BD 0x01 0x00
I recently bought another used M720Q with i3 9100T cpu for 120€. Will add an I340-T4 nic for a start and try to install and understand proxmox... Then install openwrt and some docker oriented VM on it.
EDIT: added a voltageshift screenshot for example of my ES i9-9900 undervolting.
forgot about it, regarding my DIY egpu, I suppose it won't be very interesting for a server but, who knows, you'll need:
- Lenovo riser (took the 01AJ929, because ADT-Link R23SG is pci-e x4).
- ADT-Link R23SG (random aliexpress link, but this one has nice describing pics, prefer the 50cm long cable one)
- ADT-Link R22SF extender (random aliexpress link, optional but with some tweaking, it will do a nice pci-e x4 female port at the rear of your Tiny, for easier cable management. I took the 10cm cable option, it's a bit long but OK, this way you can even keep the 2.5" SSD if you remove its caddy).
- a psu, preferably Small Form Factor if you plan to put all this stuff in a case, or a cheap Dell DA-2 adapter if your gpu needs less than 200W.
- a case + some fans (optional, it can be 3D printed, really cheap but effective, or scavenged from a dead UPS like mine).
- cheaper than thunderbolt solution (Razer/Mantiz/etc thunderbolt egpu cases and Lenovo thunderbolt 3 card 01AJ968 are expensive)
- will work with linux, hackintosh, windows and others, it's just a pci-e port, no thunderbolt firmware/drivers hassles.
- you own a tiny beast, able to run any games or 3D softwares flawlessly.
- will require some DIY work.
- only pci-e x4 speed so expect lesser performances (I would say 15%) compared to x16, but it's still very good (some benchmarks from my good old 1080ti).