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  1. #1
    ROG Member Array CraigJConrad PC Specs
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    MotherboardASUS TUF X299 Mark 2
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    USB 3.1 Gen 2 Case Cable to ASUS X299 Mark 2 USB 3.0 Socket

    Hi, I have a nice Cooler Master case that has USB 3.0 (3.1?) connectors on the front panel. It has a short (meaning it won't reach much of the MB) cable hanging down which I've identified as a USB 3.1 Gen 2 connector (20 pin). The ASUS motherboard doesn't have a matching connector, but has a "USB 3.1 Gen 1" socket (20 pin).

    The case has ZERO information about this cable, and I can't seem to find anything that will adapt from the case's cable to the ASUS connector.

    Can anyone point me to a cable/adapter that would let me connect the front panel USB to the motherboard?

    Thanks!

  2. #2
    ROG Guru: Blue Belt Array davemon50 PC Specs
    davemon50 PC Specs
    Laptop (Model)Asus G752VY-DH72 (17") and Asus G752VT-DH74 (17")
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    Memory (part number)Corsair Vengeance LPX Red DDR4 DRAM 64GB-4x16 3333 (CMK64GX4M4B3333C16R)
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    Wow I just typed up a 4-paragraph response to you, and then the forum just gave me a lousy access-denied and wiped it all out! Let me try again.


    First, are you sure that the case has a Gen 2 port? Gen 2 runs at 10 Gbps in lieu of the 5 Gbps with Gen 1 ports. Typically the Gen 2 is labeled with a 10 for that reason, or as SS10 for superspeed 10. Sometimes the Gen 1 ports have an SS next to them. There really is no 3.0 USB technically, it's just 3.1 Gen 1 according to the USB spec, they are the same thing.

    In either case your motherboard has 2 USB 3.0-Gen 1 headers to connect to. Looks like the 3.0-type 20-pin connectors are what you might have from your case, so if you have two of the same type connectors from your internal case wiring just connect to those two headers on your board (one is on bottom front, and one is on the side). Or if you have one wire from the case that is a 3.0-type 20-pin connector and one that is the newer 3.1-type with the smaller form factor then you will need an adapter, something like THIS.
    Davemon50

  3. #3
    ROG Member Array CraigJConrad PC Specs
    CraigJConrad PC Specs
    MotherboardASUS TUF X299 Mark 2
    ProcessorIntel i7-7800X
    Memory (part number)G.Skill Trident-Z F4-3200C15Q-32GTZSW
    Graphics Card #1EVGA GeForce GTX 1080 FTW2
    MonitorViewSonic VP2780 4K
    Storage #1Samsung 970 EVO M.2 500GB NVMe PCI-E SSD
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    CPU CoolerCorsair Hydro Series H100i PRO RGB AIO Liquid CPU Cooler
    CaseMasterCase MC500M Mid-Tower ATX Case
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    Quote Originally Posted by davemon50;763695
    First, are you sure that the case has a [U
    Gen 2[/U] port? Gen 2 runs at 10 Gbps in lieu of the 5 Gbps with Gen 1 ports. Typically the Gen 2 is labeled with a 10 for that reason, or as SS10 for superspeed 10. Sometimes the Gen 1 ports have an SS next to them. There really is no 3.0 USB technically, it's just 3.1 Gen 1 according to the USB spec, they are the same thing.
    Thank you for the reply, and I apologize for not responding earlier (I just saw the notification, as I had gone to an email address that is being phased out).

    Well, my case has four USB ports on the front. The first is one of those small symmetrical (rounded corners) connectors. The other three are physically identical, so I can't know for sure if they are 2.0 or 3.0. I have a slightly older (by one year) Cooler Master case that is nearly identical to this one, but has lighted numbers above those four ports (3.0, 3.0, 2.0, 2.0), but on this new case, there are no lighted markings on these (the two buttons on either side of these four ports *does* have a light on both cases). I can also confirm that all the standard USB ports are functional (I don't have anything with which to test that small USB connector), though I don't know how to tell if they are USB 2.0, 2.1, 3.0, 3.1. So, everything *seems* functional, but I still have this extra unused connector, begging for attention

    Here is a photo of the orphan connector:

    Click image for larger version. 

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  4. #4
    ROG Guru: Blue Belt Array davemon50 PC Specs
    davemon50 PC Specs
    Laptop (Model)Asus G752VY-DH72 (17") and Asus G752VT-DH74 (17")
    MotherboardAsus ROG LGA2011-v3 Rampage V Edition 10, x99 EATX
    ProcessorIntel Core i7-6950X Extreme 10-core 25MB Cache 3.0 GHz
    Memory (part number)Corsair Vengeance LPX Red DDR4 DRAM 64GB-4x16 3333 (CMK64GX4M4B3333C16R)
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    The rounded port is a Type C. And the thing in your photo above is the smaller form factor 3.1 type header connector, so you'll need to use an adapter as I mentioned above. Your board doesn't have that type of connector but adapters are available.
    Davemon50

  5. #5
    ROG Member Array CraigJConrad PC Specs
    CraigJConrad PC Specs
    MotherboardASUS TUF X299 Mark 2
    ProcessorIntel i7-7800X
    Memory (part number)G.Skill Trident-Z F4-3200C15Q-32GTZSW
    Graphics Card #1EVGA GeForce GTX 1080 FTW2
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    Quote Originally Posted by davemon50 View Post
    The rounded port is a Type C. And the thing in your photo above is the smaller form factor 3.1 type header connector, so you'll need to use an adapter as I mentioned above. Your board doesn't have that type of connector but adapters are available.
    Thanks once again! OK, I understand that I would need an adapter (heck, that cable isn't long enough to reach the motherboard, even if it had a matching connection!). What confuses me, though, is what will connecting this do? I mean .... all the front panel ports (except the Type C that I can't test yet) are functional, so they seem to be working as connected now. So what does this dangling connector attach to, if these are already attached to something? Am I supposed to disconnect one of the other connectors coming from the front panel in favor of this one?

  6. #6
    ROG Guru: Blue Belt Array davemon50 PC Specs
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    Laptop (Model)Asus G752VY-DH72 (17") and Asus G752VT-DH74 (17")
    MotherboardAsus ROG LGA2011-v3 Rampage V Edition 10, x99 EATX
    ProcessorIntel Core i7-6950X Extreme 10-core 25MB Cache 3.0 GHz
    Memory (part number)Corsair Vengeance LPX Red DDR4 DRAM 64GB-4x16 3333 (CMK64GX4M4B3333C16R)
    Graphics Card #1Sapphire Nitro Radeon R9 Fury 4GB HBM Backplate
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    Monitor(2) Dell UltraSharp U2515H 25-inch monitors
    Storage #1(3) SSD's - Samsung 960 1TB M.2, Intel 535 480G, Intel 510 250G
    Storage #2(3) HDD's - Western Digital Caviar Black 2TB 3.5-in SATA III 64MB Cache
    CPU CoolerCorsair Hydro Series H80
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    It's a USB 3 connector, you should have two USB 3.1 headers on your motherboard. Check out the motherboard layout picture in your manual and look at bubble number 7. That's what you need to connect to, there are two indicated in the manual.
    Davemon50

  7. #7
    ROG Member Array CraigJConrad PC Specs
    CraigJConrad PC Specs
    MotherboardASUS TUF X299 Mark 2
    ProcessorIntel i7-7800X
    Memory (part number)G.Skill Trident-Z F4-3200C15Q-32GTZSW
    Graphics Card #1EVGA GeForce GTX 1080 FTW2
    MonitorViewSonic VP2780 4K
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    Storage #2Samsung 860 EVO 2TB 2.5-inch SATA III SSD
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    Quote Originally Posted by davemon50 View Post
    It's a USB 3 connector, you should have two USB 3.1 headers on your motherboard. Check out the motherboard layout picture in your manual and look at bubble number 7. That's what you need to connect to, there are two indicated in the manual.
    I understand that there are connectors on the motherboard, and that this orphan cable needs an adapter to connect to one of them. What I don't understand is what making this connection will accomplish, as all the front case ports are functional (except that I can't test the single small type C). So, if these ports are already working, they must already be connected to *something* from the motherboard. Unless, of course, you suspect that the untested type C connector is what this orphan connector is for.

  8. #8
    ROG Guru: Blue Belt Array davemon50 PC Specs
    davemon50 PC Specs
    Laptop (Model)Asus G752VY-DH72 (17") and Asus G752VT-DH74 (17")
    MotherboardAsus ROG LGA2011-v3 Rampage V Edition 10, x99 EATX
    ProcessorIntel Core i7-6950X Extreme 10-core 25MB Cache 3.0 GHz
    Memory (part number)Corsair Vengeance LPX Red DDR4 DRAM 64GB-4x16 3333 (CMK64GX4M4B3333C16R)
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    Sound CardAsus SupremeFX Hi-Fi Audio DAC
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    Storage #1(3) SSD's - Samsung 960 1TB M.2, Intel 535 480G, Intel 510 250G
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    It may not get you anything at all, it might just be a redundant connector so that you have the option for either type depending on your board. You'd have to ask the case mfg that question, unless their instructions already tell you (and I'm guessing they don't). Either way you'd need an adapter to make it work, which is what you asked at the beginning of this thread. If you've already got USB powered then I'm guessing you already hooked up the other USB cable to get that.
    Davemon50

  9. #9
    ROG Member Array CraigJConrad PC Specs
    CraigJConrad PC Specs
    MotherboardASUS TUF X299 Mark 2
    ProcessorIntel i7-7800X
    Memory (part number)G.Skill Trident-Z F4-3200C15Q-32GTZSW
    Graphics Card #1EVGA GeForce GTX 1080 FTW2
    MonitorViewSonic VP2780 4K
    Storage #1Samsung 970 EVO M.2 500GB NVMe PCI-E SSD
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    CaseMasterCase MC500M Mid-Tower ATX Case
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    OK, thanks. Yes, I've tried to ask that of Cooler Master and no response. Their documentation definitely does *NOT* even mention this connector. I guess it is *possible* that one of the cables that I *did* connect should be disconnected and this orphan (via adapter) should be connected instead. That would mean that the front panel is made to have either one connected at a time. I wouldn't think it would need *both* connected at once, in fact, I'd be concerned of creating some kind of issue doing that.

    Oh well, without any insight from the case maker, I'll let the orphan alone. It's unfortunate -- I really *love* the Cooler Master cases I've had, but with undocumented things like this, it will probably be my last one.

    I do appreciate your help through this.

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