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  1. #1
    ROG Junior Member Array
    Join Date
    Mar 2015
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    Power button flashing in STRIX Z270F GAMING

    I have the ROG STRIX Z270F GAMING and from the first time that i install it i saw that the led from the power button in my tower was flashing when my computer was on. I did not pay attention because the tower led was very little.

    Now that i changed tower i notice the same thing. To be honest, it is a little bit annoying because in the new case (Coolermaster H500p mesh) the power led big enough.I plug a lot of times the Pled cables but nothing happen. I change and position in the 3-pin position but nothing happen.

  2. #2
    ROG Guru: Yellow Belt Array pndiode PC Specs
    pndiode PC Specs
    Laptop (Model)ASUS G752VL-DH71
    MotherboardROG Maximus IX Extreme
    ProcessorI7-7700K
    Memory (part number)G-Skill F4-3600C19Q-32GTZRB
    Graphics Card #1ROG GTX 980 MATRIX-GTX980-P-4GD5 Bykski Water N-AS98ROG-X Full Cover
    Graphics Card #2ROG GTX 980 MATRIX-GTX980-P-4GD5 Bykski Water N-AS98ROG-X Full Cover
    MonitorSAMSUNG S22D300HY (2 ea)
    Storage #1WD Black SN750 1TB
    Storage #2WD Blue 4TB (4 ea)
    CPU CoolerEK PE 360 (Top), PE 240 (Front), and Xres 100 Elite
    CaseROG Strix Helios
    Power SupplyThermalTake Toughpower 1200W
    Keyboard Cerberus
    Mouse Logitech MX Master S2
    Headset ROG Strix Fusion 300
    Mouse Pad Generic
    Headset/Speakers Bose Companion 3 Series II
    OS Win 10 Pro 2004
    Network RouterGeneric
    Accessory #1 ROG Aura Terminal
    Accessory #2 ROG 10GB Express
    Accessory #3 Corsair ML140 (4 ea), Corsair ML120 (3 ea)

    Join Date
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    led from the power button in my tower was flashing when my computer was on

    Power button flashing/blinking due to SATA or M.2 drive activity, user manual (English) Chapter 1, page 1-20, Hard disk drive activity LED (2-pin HDD_LED). Sometimes it could be a separate LED or combined with the power button LED.

    If it is annoying, do not connect HDD_ LED system panel connector.

    However, on some motherboards, what is that?

    Click image for larger version. 

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    Also an indication of:
    https://www.techdim.com/what-is-hdd-led/
    Last edited by pndiode; 02-29-2020 at 02:12 PM.

  3. #3
    ROG Junior Member Array
    Join Date
    Mar 2015
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    the tower has a separate HDD led so i m having two leds blinking. And the blinking is not the same. Hdd led is more random

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