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My second identical computer build has failed - won't POST

Discussion in 'Hardware' started by Careys-New-BFF, Sep 7, 2019.

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  1. Careys-New-BFF

    Careys-New-BFF Thread Starter

    Joined:
    Jul 6, 2019
    Messages:
    10
    Hi In July I built a desktop from Uncle Carey's website and posted to this Forum, "My first ever computer build!"

    My first ever computer build was so much fun, I built another one to give to my brother.

    It is a duplicate of the original.

    Here is my problem, it will not post!

    I've disconnected absolutely everything from the motherboard apart from those required to boot.

    The z370XP SLI starts, as do the fans, but then it turns off and tries again, and again.

    I've removed the CMOS, I've re-seated the RAM, I've quadruple checked all of the connections and I've even swapped the RAM from my original build, changed to a wired keyboard and mouse; but it flatly refuses to post.

    I know I am old, I know I am stupid and I know the answer should be obvious but, for the life of me I cannot fix it.

    Please help.

    PARTS LIST:

    Case: CORSAIR Carbide 200R
    Motherboard: Gigabyte Z370XP SLI
    CPU: Intel Core i7-8700K
    GPU: Built-in to CPU
    Graphics card: Gigabyte Nvidia Geforce GT710 2GB GDDR5 PCI Express
    CPU Cooler: Mugen 5 Rev. B
    RAM: Corsair Vengeance LPX 16GB (2x8GB) DDR4 2666MHz (PC4 21300)
    SSD: Samsung 970 EVO 1TB - NVMe PCIe M.2 2280
    ODD: Asus Internal 24x DVD-RW SATA DRW-24D5MT
    PSU: EVGA Gold SuperNOVA G1 Modular ATX - 650 W
    OS: Windows 10 Pro 64-bit
    Keyboard & Mouse: Logitech MK330 Wireless Combo
    Wireless/Bluetooth: Gigabyte GC-WB1733d-I Wireless-AC PCI-E Card v5.0 1733Mbps
     
  2. crjdriver

    crjdriver Moderator

    Joined:
    Jan 2, 2001
    Messages:
    39,336
    It is possible you received a DOA board. Have you done the out of case build using the onchip video? If not, do so.
    Next have you read the guide at the top of the hw forum for problem builds? That would be the first thing I would do.
     
  3. phillpower2

    phillpower2

    Joined:
    Dec 21, 2016
    Messages:
    603
    Hello Careys-New-BFF,

    Have you assembled the parts inside or outside of the case on a non conductive surface such as a large piece of cardboard that is bigger than the MB.

    What you describe is typical behaviour of a system short or an outside chance the CPU cooling fan being connected to the wrong fan header on the MB.
     
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