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Aorus elite x570 m.2 slot question

Discussion in 'Motherboards' started by subbytna, Jun 7, 2020.

  1. subbytna

    Sgarrista

    Joined: Oct 22, 2008

    Posts: 9,412

    Location: Belfast

    I'm thinking of ditching my mechanical 1tb drive for a m.2 1tb drive. I've currently got the sabrent pcie gen 4 nvne drive in the top slot (with the heat shield) the other slot, if I use it, will it affect the performance of the sabrent drive? Not too sure about all the m.2 lanes stuff
     
  2. alex h

    Mobster

    Joined: Jun 13, 2009

    Posts: 4,077

    Don't think it does mate I'm about to find out soon myself but what I've heard it shouldn't effect the other m2 mate
     
  3. The Old School Gamer

    Hitman

    Joined: Feb 22, 2019

    Posts: 568

    Location: The Twilight Zone

    The top m2 goes directly to the CPU.
    The bottom m2 goes via the chipset to the CPU.

    But the uplink speed is still the same on X570 so it really shouldn't make any odds to the performance.

    On B550 the bottom m2 is slower (or should be).
     
  4. Mcnumpty2323

    Mobster

    Joined: Dec 21, 2019

    Posts: 3,459

    You may lose some sata ports
    Or your gpu may drop to x8
    Would have to check your motherboard manual for that
    The 2 x M2 should run at x4 though
    Got 3 x M2 in my x570 auros ultra all do x4
     
  5. bremen1874

    Capodecina

    Joined: Oct 20, 2008

    Posts: 11,197

    They don't
     
  6. w00dy85

    Hitman

    Joined: Feb 14, 2008

    Posts: 956

    I have the same board and are using both M.2 slots, though I'm not using a Gen4 drive. I have not noticed any performance drop with any of my M.2 drive or my graphics card.

    My system spec is in my sig.
     
  7. Jamin280672

    Wise Guy

    Joined: Feb 12, 2014

    Posts: 1,909

    Location: Halesowen West Mids

    all M.2 slots on X570 boards have their own lanes, they dont share with anything else, so you dont loose any other slots or SATA ports, and they all run at full speed PCI-e 4.0 X4, this is possible because the X570 chipset also provides a further 16 full speed PCI-e 4.0 lanes to other devices south of the 2 x16 GPU slots and the first nvme slot, which get their lanes direct from the CPU.

    B550 (depending on which board you go for) has a very very strange PCI-e lane layout, the B550 Master has a completely different layout to the B550 Pro for instance.
     
    Last edited: Jun 8, 2020
  8. bremen1874

    Capodecina

    Joined: Oct 20, 2008

    Posts: 11,197

    Do they? On a board with only two M.2 slots and not much else going on that's true, but start adding additional M.2 slots and other onboard peripherals and those 16 lanes are soon going to be used up.
     
  9. Jamin280672

    Wise Guy

    Joined: Feb 12, 2014

    Posts: 1,909

    Location: Halesowen West Mids

    well ive got an MSI X570 ace, and all 3 M.2 slots on that board are populated and all run at full speed, SATA doesnt use any of the lanes as the CPU and chipset comes with controllers built in as additions, same with the USB and LAN, they have their own controllers so really you are only talking about slots that need the lanes, the only restriction with my ACE is you can only use 1 or the other PCI-e x 1 slots not both.

    EDIT: Sorry only the chipset comes with a dedicated sata controller of 4 sata ports, which would explain why my ACE only has 4 any more SATA ports and you are sharing lanes, unless like you stated, it only has 2 M.2 slots.

    On my ace though, im using all 3 nvme slots, 1 x 16 gpu slot and 1 x PCI x 1 slot for my sound card, finishing with 2 sata ports, im not sure if anything has been disabled as im not using anything else, but the manual doesnt say anything about loosing anything except 1 or the other x1 slot.

    [​IMG]
     
    Last edited: Jun 8, 2020
  10. Mcnumpty2323

    Mobster

    Joined: Dec 21, 2019

    Posts: 3,459

    Yep if your board has more than 4 sata ports
    You are likely to lose some
    I lose 2 sata ports on my x570 auros ultra