Will my mobo limit the lanes?

[r0otctrl]

I have a...

- 2060 plugged into PCIEX16_1

- an AORUS NVMe Gen4 SSD 1TB plugged into M2_2(SOCKET3)

 

If I were to plug a 4-lane, PCI-E SATA expansion card into PCIEX16_3, my mobo would not limit the lanes of PCIEX16_1 to 8 because PCIEX16_3 is supported by the mobo's chipset, correct?

 

 

https://dlcdnets.asus.com/pub/ASUS/mb/SocketAM4/ROG_STRIX_X570-E_GAMING/E15826_ROG_STRIX_X570-E_GAMING_UM_v2_WEB.pdf?model=ROG STRIX X570-E GAMING

[toasty99]

Yeah you're good. 

 

[r0otctrl]

6 minutes ago, toasty99 said:

Yeah you're good. 

 

ok awesome! thanks! can you possibly explain the manual to me lol. is the manual saying that both X1_2 and 16_3 are supported by the chipset, up to 4 lanes shared between the 2 of them, whereas 16_1 and 16_2 are supported by my CPU in either a 1x16 or 2x8 configuration?

 

i think i found my answer, at least regarding the PCI-E x16 slots, a little further down in the manual:

 

 

[toasty99]

4 minutes ago, r0otctrl said:

ok awesome! thanks! can you possibly explain the manual to me lol. is the manual saying that both X1_2 and 16_3 are supported by the chipset, up to 4 lanes shared between the 2 of them, whereas 16_1 and 16_2 are supported by my CPU in either a 1x16 or 2x8 configuration?

They made it super confusing but basically the top two x16 slots with the metal can be run either as X16 top slot or x8 and x8 with both occupied. 

 

Then everything else is just meaningless past that point and don't need to worry about it because it's run off the chipset.

 

The sharing it's talking about is that the 3rd long slot shares with the second X1 slot.

[Sant_HH]

10 minutes ago, r0otctrl said:

ok awesome! thanks! can you possibly explain the manual to me lol. is the manual saying that both X1_2 and 16_3 are supported by the chipset, up to 4 lanes shared between the 2 of them, whereas 16_1 and 16_2 are supported by my CPU in either a 1x16 or 2x8 configuration?

My understanding is, X1_2 and X16_3 are connected to the chipset and you use either X16_3 (running at x4) or X1_2 not both at the same time. X16_1 and 2 are connected to the CPu and yes will run either in 1x16 or 2x8 config.

 

Yes, the manual is very confusing.

[r0otctrl]

6 minutes ago, toasty99 said:

They made it super confusing but basically the top two x16 slots with the metal can be run either as X16 top slot or x8 and x8 with both occupied. 

 

Then everything else is just meaningless past that point and don't need to worry about it because it's run off the chipset.

 

The sharing it's talking about is that the 3rd long slot shares with the second X1 slot.

 

ya ok thats what i thought. the 3rd slot and the x1_2 slot share up to 4 lanes? in other words, if something was plugged into the x1_2 slot, then the 3rd slot would become 3 lanes?

[r0otctrl]

7 minutes ago, Sant_HH said:

My understanding is, X1_2 and X16_3 are connected to the chipset and you use either X16_3 (running at x4) or X1_2 not both at the same time. X16_1 and 2 are connected to the CPu and yes will run either in 1x16 or 2x8 config.

 

Yes, the manual is very confusing.

 

i feel/felt so bloody dumb trying to understand this haha. i understand the sharing between X16_3 and X1_2 to mean that, if i had something plugged into each, then X1_2 would require 1 lane and therefore X16_3 would only be able to use up to 3 lanes? maybe im misunderstanding this though

[Sant_HH]

4 minutes ago, r0otctrl said:

 

i feel/felt so bloody dumb trying to understand this haha. i understand the sharing between X16_3 and X1_2 to mean that, if i had something plugged into each, then X1_2 would require 1 lane and therefore X16_3 would only be able to use up to 3 lanes? maybe im misunderstanding this though

I would not expect it to do 3 lanes, I've only seen outright disabling to slot or put it to 1 lane.

[r0otctrl]

3 hours ago, Sant_HH said:

I would not expect it to do 3 lanes, I've only seen outright disabling to slot or put it to 1 lane.

 

i was just guessing. parity makes a lot of sense too. youre prolly right