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  1. #1
    ROG Enthusiast Array
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    Exclamation 5930k + Rampage V Extreme - Random Reboots (CPU Idle)

    So I moved my old gaming comp into a new rig to be used as a server.

    In my gaming system I was running it at 4.5Ghz...

    Now I'm just running optimized defaults. My rig is:

    i7 5930k
    Rampage V Extreme
    G.Skill 32GB (all slots filled) F4-2800C16-4GRK
    EVGA 850w Power Supply
    Nvidia 770
    Random HDDs and Raid setups..
    Win10

    My issue is... It runs rock steady during Prime95 and realbench - I can run them for hours and nothing, but randomly I won't be doing anything on it (it stays on 24/7 or should - for plex and camera software) - and it will restart on me and then have trouble rebooting into windows. It'll reboot and get to the window splash screen and reboot again - cycle until I power it down and cmos clear or turn the power supply off and hit the power button.

    Have no idea why. Temps are at idle 30C - 60C under an hour or two of load... I've also memtest the RAM - but I can't run the system on XMP (I don't change anything else - so maybe thats why)

    Could it be my power supply? Any expertise.

    Also - the CPU/MOBO/RAM are the only things that transferred from my gaming rig to my server... SO the power supply and HDDs (SSDs/Mechanical) are from my original server.

    Thanks for helping!
    Last edited by BossJ; 01-17-2019 at 09:37 PM.

  2. #2
    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)
    Graphics Card #1Sapphire Nitro Radeon R9 Fury 4GB HBM Backplate
    Graphics Card #2Sapphire Nitro Radeon R9 Fury 4GB HBM Backplate
    Sound CardAsus SupremeFX Hi-Fi Audio DAC
    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
    CaseCorsair Obsidian Series 650D Black, ATX, Mid Tower
    Power SupplyCorsair Digital AXi-Series AX1200i (1200W) 80+ Platinum Rating
    Keyboard Logitech Wireless K360
    Mouse Logitech Wireless MX Anywhere 2
    Headset HyperX Cloud II
    OS Windows 10 Pro 64-Bit
    davemon50's Avatar
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    Tried running stock speeds for a while?

    Tried reseating all RAM, or using 1 stick at a time for a while?
    Davemon50

  3. #3
    Administrator Array Silent Scone@ASUS's Avatar
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    Could potentially be the PSU, yes. You'd need to test with another unit, but random reboots at low load are common with power supply failure.

  4. #4
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    Quote Originally Posted by Silent Scone@ASUS View Post
    Could potentially be the PSU, yes. You'd need to test with another unit, but random reboots at low load are common with power supply failure.

    Thanks for that.

    And yes I've also reseated all RAM. I haven't tested individual RAM but I've ran mem86 plus other stress testers for hours and nothing. The system is at stock settings.

    Until I get a new PSU in, I've also plugged into a different wall outlet and unplugged from battery backup. Maybe that's defective
    Last edited by BossJ; 01-18-2019 at 01:44 PM.

  5. #5
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    Update: seems to have been the power supply. Everything is stable as of last Friday. Thanks for your help!

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