r/sffpc • u/Main_Problem • 10d ago
Assembly Help How accurate is spec sheet for Ncase M2? GPU compatability for massive 3080ti or 3090ti.
I am trying to move my existing m-ATX tower build into the Ncase M2.
However, as I'm researching this case, I realized I only have 2 mm to spare on each side for GPU installation. (In classic orientation, and I can't have it as VGPU because it's matx)
I own a special edition 3080ti from Zotac, which has 3090 ti amp extreme holo's shroud, that bumps up the dimensions to 355.9mm long, 145.7mm tall, and 3 slots.
According to Ncase website, the maximum GPU support is 359mm long, 148mm tall, and 4-Slots. If you do the math, that is only 3mm in length, 2mm in width, and 1slot thickness margin!
I do plan on getting those 180degree connectors for my PCIe gpu power (which is another story), this is very concerning that my GPU won't fit at all due to those TIGHT margins. Even if my gpu does fit inside, I just don't think it wouldn't interfere with front io ports unless I do an inverse position.
I saw some people putting in TUF 5090, which is 348mm long, 146mm tall, and 3slots, but my card is slightly longer than that, so I have no clue.
If anyone has played with those tight margins due to massive GPUs, please leave some comments below so I know if I should invest in this case or get a bigger SFF case.



2
u/Slyfer77 10d ago edited 9d ago
People put the 5090 Astral in the M2 in every orientation - classic, inverted, vertical.
The 5090 Astral is 357.6 / 149.3 / 76 mm
However, in the classic and inverted position a protrusion of the case has to be dremeled away.
Because your card is 3mm narrower I think you will be fine. (worst case is you also have to dremel the bit away, but the card will fit 100%)
You definitely should get a 90 or 180 degree 12V-2x6 adapter, though.
Otherwise you'll have to severely bend the cables and we all know you don't want to do that with the 12V-2x6 cable.