PCI-E voltage is unstable with the smart power LED indicator

Parts in question:
Gpu: Gigabyte RX580 8Gb Psu: Seasonic 520watt psu
Describe your problem. List any error messages and symptoms. Be descriptive.
Every so often the smart power LED flashes maybe once, twice, or three times, then stops. This happens maybe once every 30 minutes/hour. The Gigabyte site labels this as a abnormal voltage as seen here: http://www.gigabyte.us/Graphics-Card/GV-RX580AORUS-8GD#kf.
The system also turns off randomly maybe once day but I'm not sure if that is related.
List anything you've done in attempt to diagnose or fix the problem.
I have made sure all power cords were properly plugged into both the GPU and PSU. I've switched the power supply ports in which the cord was plugged into.
On the GPU box it says it recommended at 500+watt GPU and the voltage calculator online stated that my system only required up to 350watts.
A couple questions:
Other than my computer shutting off randomly once in a blue moon I have not noticed any issue with gaming. I can run The Witcher 3 at 1080p ultra 60 fps no issue. Is the abnormal voltage going to ruin my card if I keep using it like nothing is wrong?
Could the computer shutting off randomly be related to this?
Thanks.
Reply to AlexBerardo72
4 answers Last reply
More about pci voltage unstable smart power led indicator
  1. How old is the Seasonic unit? Pertaining to that question, you forgot to include the full system's specs since 500W is the total system draw without any overclocks. Mileage will vary when you look at an AMD platform as opposed to an Intel platform. Furthermore the age of a PSU will be critical since capacitor wear and tear will degrade the PSU effective power output.

    If the system powers off when under load or even abruptly then the PSU is incapable of delivering the necessary power. Abnormal voltages can ruin more than just your card, but your entire system.
    Reply to Lutfij
  2. Lutfij said:
    How old is the Seasonic unit? Pertaining to that question, you forgot to include the full system's specs since 500W is the total system draw without any overclocks. Mileage will vary when you look at an AMD platform as opposed to an Intel platform. Furthermore the age of a PSU will be critical since capacitor wear and tear will degrade the PSU effective power output.

    If the system powers off when under load or even abruptly then the PSU is incapable of delivering the necessary power. Abnormal voltages can ruin more than just your card, but your entire system.


    The unit is brand new.
    Here are the full specs:
    CPU: AMD Ryzen 1600 (no overclock)
    GPU: Gigabyte RX580 8GB
    Memory: Corsiar LPX 8GB DDR4 RAM
    Storage: 520 GB SSD
    Mobo: MSI PC Mate B350 AM4
    PSU: Seasonic 520Watt Bronze PSU ATX 12V
    Peripherals:
    K70 Cosair RGB keyboard + RGB mouse

    Is replacing the power supply something I should look into.
    Reply to AlexBerardo72
  3. I have the same problem. Although I have an RX 570 card but same PSU (seasonic 520W bronze). Have you found any solutions for this? I am going crazy with this thing going on. I am getting paranoid. Help! :ouch:
    Reply to m0wkiee
  4. i had the same problem with rx 570 and sea sonic 520 watt psu, i swapped in a evga 600b psu, problem went away, sea sonic psu power was split into 2 12v rails, evga has 1 12v rail.
    pc never shuts off anymore, but recently the power led flashes every once in a while, only while browsing the web though. never happens while gaming or under load.

    pc specs
    I3 7100
    asus b250 plus motherboard
    gigabyte rx 570 4gb
    hyperx predator 2x8gb 2400mhz ram
    evga 600b psu
    sandisk g26 ssd 480gb
    Reply to nismo_sean
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