(help me) 16x GPU with NvME on CH7

[Baio73]

I was wrong, my bad. You should use the bottom one, disregard what I said about using the top, it is incorrect.

No problema man! ;-)

I still don't understand the reason why Asus enumerates PCIex slots starting from the bottom to the lower… and the opposite for nVme slots!!
When I first build up my rig, I immediately put the nVme in the upper slot as to me it was obvious it was the first one.

Baio

[Frostie36]

Are you actually experiencing performance issues with your gpu running at 8x because I'm not & my 1080ti is running at 8x as well due to the pcie cards I'm using. I did a test in a couple of games comparing 16x vs 8x & I have at most a 1fps difference in one of the games tested which is within margin of error test to test.

Steve over at gamers nexus did a video about this a while back & the bottom line is, 8x is nothing to worry about in terms of how the gpu will perform, unless your worried about losing literally a frame or two in a few select titles & as stated above, that's within margin of error

[amadeus1171]

No problema man! ;-)

I still don't understand the reason why Asus enumerates PCIex slots starting from the bottom to the lower… and the opposite for nVme slots!!
When I first build up my rig, I immediately put the nVme in the upper slot as to me it was obvious it was the first one.

Baio

Just like man kits are installed furthest from the CPU with one empty slot in between. :-D

[EhRabzz]

What this guy said is correct and I have the C7H with a 2080 and a 2TB NVME.

It does state in the manual that if you place the M.2 in the slot closes to the CPU that it shares its lanes with the top PCIex slot. So if you put an M.2 in that slot it will then downgrade the speed of the graphics card in the top most slot from x16 to x8.

The only way to get full speed is to place the M.2 into the furthest most slot from the CPU and then you will get your x4 speed for the M.2 and your x16 for the graphics card.

It is in the manual, I highly recommend you follow that as there is absolutely no other way to get it to work.

It's in bottom slot though!