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  1. #1
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    Rampage 5 and Sabertooth X99 both with Boot Devide LED freeze

    I am building 2 PC's one with a Rampage V mobo and one with a Sabertooth X99. Both worked on the test bench and I burned in the GTX 980 and GTX 980 Ti's for 48 hours. Both have Samsung 950 Pro's installed in the M.2 slot and windows 10 installed and were working fine until a few days ago when I could not get either 2 boot. One is still on the test bench and the other I installed into its case. I have checked the PSU's Enermax 1500 and Maxrevo 1350 and both are working fine. I have cleared the CMOS and tried to get to the bios but cannot get past the error. On the Rampage i get a dd error and on the Sabertooth I get 1 long followed by 4 short beeps. I have corsair dominator platinum 32 gb on both boards and it is fine. I spoke to Asus tech support and they suggested clearing the CMOS which did not work. Any suggestions?
    Last edited by jacks0n; 06-29-2016 at 02:15 PM.

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  3. #3
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    Hi jacksOn,

    Do you mind to let us know which POST code did the system stops at during the POST sequence?

  4. #4
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    Yes the Boot Device LED stays lit all others blink and go out

  5. #5
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    Quote Originally Posted by jacks0n View Post
    Yes the Boot Device LED stays lit all others blink and go out
    Hi jacksOn,

    Please kindly confirm:
    1. If you have done the following prior OS installation:
    - Set "CSM Support" to "Disabled" to ensure it boots from UEFI mode
    - You have loaded the Samsung NVMe driver for Windows 10
    http://www.samsung.com/semiconductor...oad/tools.html

    2. If your primary boot device is parked at "Windows Boot Manager" instead of the device.

    3. The BIOS build used on both boards to help with the investigation.

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