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  1. #21
    ROG Guru: Orange Belt Array Saltgrass PC Specs
    Saltgrass PC Specs
    MotherboardMaximus XIII Hero
    Processori9 11900K
    Graphics Card #1EVGA RTX 3090 FTW
    Sound CardOn Board
    MonitorDell AW3420DW
    Storage #1Samsung 980 Pro 2 TB
    Storage #2Samsung 860 Pro 1 TB
    CPU CoolerCooler Master Hyper 212X
    CaseCooler Master
    Power SupplyAntec HCP Platinum 1000
    Keyboard ASUS Strix Flare
    Mouse ASUS Chakram
    Headset/Speakers Logitech wired 5.1
    OS Win 10 Pro
    Network RouterROG Rapture GT-AX11000/AXE11000
    Accessory #1 VR Headset
    Accessory #2 Saitek X52

    Join Date
    Jan 2014
    Reputation
    10
    Posts
    348

    Quote Originally Posted by Zeroed85 View Post
    Well the spec page clearly states M.2_2 shares bandwidth with PCIX16_1/2 so I goofed up. I don't understand though, why would anyone want to use M.2_2 when it half's the bandwidth to the GPU?

    It's clear that RKL + PCIE 4.0 has been the focus here but with CML (which the platform supports) the storage and PCIE lane options are severely limited.
    If I am reading the specs correctly, the 11th Gen processor has 4 more lanes available than the 10th Gen. Since the Motherboard was designed around that processor, it would seem logical a 10th Gen processor system would have some limitations.

    I ran the 11th Gen processor on the Z490. I was not happy with that combination either.

  2. #22
    New ROGer Array EncodeGR PC Specs
    EncodeGR PC Specs
    MotherboardAsus ROG Maximus XIII Hero
    ProcessorIntel Core i7-11700K
    Memory (part number)Kingston HyperX Predator RGB 32GB (4x8GB) DDR4 3600MHz CL17 Memory Kit - Black (HX436C17PB4AK4/32)
    Graphics Card #1MSI GTX 1070Ti Gaming X 8GB
    Sound CardCreative Sound Blaster Z
    MonitorDell Ultrasharp U2520D 25" QHD IPS
    Storage #1Samsung 980 Pro M.2 Nvme PCIe 4.0, 500 GB
    Storage #2Samsung 970 Evo Plus M.2 Nvme PCIe 3.0, 1 TB
    CPU CoolerNoctua NH-U12A
    CasePhanteks Enthoo Evolv X Glass - Black
    Power SupplyAsus ROG Thor 850W Platinum
    Keyboard Logitech G915 TKL Lightspeed, Tactile
    Mouse Razer Basilisk V2
    Headset Sennheiser Game-Zero Headset
    Mouse Pad Asus ROG Sheath XL
    Headset/Speakers Logitech Z333 2.1 Speakers
    OS Windows 10 Pro 64-bit
    Accessory #1 Noctua NF-A14 PWM (x6)
    Accessory #2 Phanteks Halos Lux
    Accessory #3 Phanteks Neon Digital-Rgb

    Join Date
    Feb 2021
    Reputation
    20
    Posts
    55

    Quote Originally Posted by Zeroed85 View Post
    Well the spec page clearly states M.2_2 shares bandwidth with PCIX16_1/2 so I goofed up. I don't understand though, why would anyone want to use M.2_2 when it half's the bandwidth to the GPU?

    It's clear that RKL + PCIE 4.0 has been the focus here but with CML (which the platform supports) the storage and PCIE lane options are severely limited.
    Both M.2_1 and M.2_2 are CPU bound. So, if your CPU has only 16 lanes and want your PCIE16_1 to run at x16, you shouldn't use M.2_1 or M.2_2.
    RKL on the other hand has 20 lanes, which lets you use both PCIE_1 and M.2_1 (or M.2_2), again bound to the CPU.

    This board is build for RKL. It does support CML, but it wasn't designed with that in mind, it's just backwards compatible. You shouldn't buy such a board to use it with non-RKL CPUs, because you would be wasting a lot of its features while paying premium price.

    Quote Originally Posted by Zeroed85 View Post
    I don't understand though, why would anyone want to use M.2_2 when it half's the bandwidth to the GPU?
    Because there is minimal difference in performance ( ~ 1-2%) when going from x16 to x8 in GPU, especially when you consider the PCIe 4.0 speeds. So, some people may preffer having two M.2 Nvme drives bound to the CPU, and x8 GPU, all of these with PCIE 4.0 speeds. It's just preferrence.
    Last edited by EncodeGR; 04-15-2021 at 12:53 PM.

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