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M.2 slot Rog Strix X870E-E Gaming Wifi

ashleasacht
Level 7

Am so confused about this in the manual.

M.2_2 & M.2_3 slots share bandwidth with PCIEX16(G5).

When M.2_2 & M.2_3 are occupied with SSD devices, PCIEX16(will run x8 only.)

When i read "When M.2_2 AND M.2_3 are occupied with SSD devices, PCIEX16(will run x8 only"

i understand it as if BOTH are occupied with SSD device, PCIEX16 will run x8 only?

So if i put only 1 M.2 disc on M.2_2 and M.2_3 is not used it still going to run PCIEX16 as X16?

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2 REPLIES 2

Silent_Scone
Super Moderator

Hi @ashleasacht 

Verbiage is not the best, but my understanding is if either is occupied, PCIEX16(G5) is reduced to x8.

9800X3D / 6400 CAS32 / ROG X870 Crosshair / TUF RTX 4090

Nate152
Moderator

Hello ashleasacht

Both M.2_2 and M.2_3 slots share bandwidth with PCIEX16(G5), populating any of these two slots will drop the PCIEX16(G5) to x8.

If you're using an 8000 series cpu,  M.2_2 and M.2_3 will be disabled.