Question maximus vi extreme missing sata ports

apple tech geek

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Aug 23, 2016
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so i got a maximus vi extreme motherboard
had it for litteral ages so i decided to repurpose it to a nas since the 10 sata ports are awesome.
got 6 drives in and works fine.
connect my 7th drive (wich is just ssd cache) and it doesnt show up in the bios. the bottom 4 sata ports doesnt seem to work at all.
this board has 2 sata controllers and both are on (bios is reset) i disabled all the uneeded stuff like wifi bluetooth because the nas doesnt use or need it
View: https://imgur.com/a/t4WXYc2
the red sata cable is connected to the affected drive
as you can see the bios only seems to count to 6 though so not sure what the matter is in this case.
anyone have used this board and know why the 4 ports would be disabled if they are?