X570 tuff gaming can i use second gpu slot?

[Anas Dweik]

Hi guys i read in Manuel both slots are the same pci 4 16x. Can i use second slot? 

[Velcade]

Sure, go for it.

 

What leads you to believe you can't?

[Anas Dweik]

4 minutes ago, Velcade said:

Sure, go for it.

 

What leads you to believe you can't?

All other mobos i used, 8x in the second slot so i got used to use the first slot

[Zando_]

2 minutes ago, Anas Dweik said:

All other mobos i used, 8x in the second slot so i got used to use the first slot

Well it varies from mobo to mobo and platform to platform and sometimes CPU to CPU (such as on the X99 platform I use, the 5820K only has 24 PCIe lanes, the higher up CPUs have 40). But like you said the mobo manual itself stated that the second slot is 16x, so there shouldn't be any doubts. If the second slot is affected by something like an M.2 drive or sometimes SATA ports, the manual will tell you that as well. 

[Jurrunio]

why would you want to do that?

 

21 minutes ago, Anas Dweik said:

All other mobos i used, 8x in the second slot so i got used to use the first slot

it's not like 8x will bottleneck many GPUs, though I dont know if it can run 16x on the second slot.

 

17 minutes ago, Zando Bob said:

But like you said the mobo manual itself stated that the second slot is 16x,

that usually means the physical size. Just like how the bottom x16 slot on LGA115x or AMx only having 4x bandwidth max

[Zando_]

3 minutes ago, Jurrunio said:

that usually means the physical size. Just like how the bottom x16 slot on LGA115x or AMx only having 4x bandwidth max

I haven't seen a mobo manual yet that does not state that somewhere. It usually says "if you put an NVMe drive here then this PCIe slot runs at this speed vs this other speed it's rated for". Usually it'll disable a 4x slot somewhere or drop a 16x slot to 8x. Sometimes disables SATA ports too.