✧✦Catherine✦✧Feb 27

heyyyyyy. check this out

i bought one of those chinese motherboards which get the UEFI package from American Megatrends and then enable options with the guiding principle of "YES."

check out how many juicy bits it has

you can turn the memory scrambler on and off! it even tells you the seed it has on, i think, this specific boot?

Show thread✧✦Catherine✦✧Feb 27

it has soooo many PCIe configuration options. port bifurcation is just the start of it. there's probably an option for every power related register

you can enable "PCIe Stop & Scream", whatever the hell that is

Show thread✧✦Catherine✦✧Feb 27
you can disable GPIO lockdown!
there's a function that prevents malicious UEFI Flash wearout, a type of attack I have not considered before. also you can turn it off
you can set UEFI boot stage breakpoints!
Show threadkulupu jyn
@whitequark UEFI boot stage break points is crazy. I want this now.
Feb 27 at 3:19pmWeb
Show thread✧✦Catherine✦✧Feb 27
@jyn do you have 30 euro? it could be yours https://social.treehouse.systems/@whitequark/116143280563821829
✧✦Catherine✦✧ (@[email protected])

if you want this motherboard, it is unbelievably easy. it's on sale for 30€, *including the Xeon CPU it needs*: https://www.aliexpress.com/item/1005008826220177.html note that it *is* made to a price point and it *is* barebones: it has no USB3, for example. but on the flipside, you can split its PCIe x16 graphics port four ways and connect *six* PCIe Gen3 NVMe drives to it (plus some SATA)

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