Assistance needed re PSU - possible underpower

I hope that everyone had a very happy Christmas

I purchased some components for my son for Christmas to upgrade his computer.
- Motherboard - ASRock Fatal1ty Z170 Gaming K4/D3
- GPU - GeForce GTX 1060
- RAM - 2 x 4 GByte Hyerx Fury DDR3 and 2 x 8 GByte Hyperx Fury DDR3
- Corsair AIO 120mm Cooling
- 3 x 140mm Case Fans
- 1 x SSD - 250 Gbyte
- 1 x SSD - 1Tbyte
- 1 x SATA HDD - 1 Tbyte

Everything works well - except the GPU will not run - it works fine with a 2 GB GTX660 but will not fire up with either an RX570 (8Gb) or the GTX 1060.

I am thinking it is the PSU which is currently a Corsair Vengeance 650M Silver.

Additionally - as this PSU can do Single Rail or Multi-Rail - I have left it as single - would multi-rail assist with this issue?

Any advice/help would be appreciated. It is frustrating my son and me

Comments

  • +4

    haven't forgot to plug in the 6 pin power connector to the video card? caught me out more than once rushing around

    • Nope - the PCIe cable is connected - red light goes blue/white

  • +1

    Multi rail will only spread the load - requires attention to balancing

    Assuming the pcie power cable is plugged in.. using the hardwired or modular cable?

    • Single - Multi - that's what I thought

      It is the Hardwired cable

      • Try the modular cable?

        Reseat all PSU cables ,?

        Unplug any extra devices..even try only one stick of ram

        Clear the bios by removing battery

        Going from red to blue white indicates card is idling

        Any post codes or beeps?

        • Tried all of this - it would not post with just the GPU - 1 stick of RAM - No other devices……. Looks like he is stuck with the GTX660 for the minute.

          No beeps - and the GPU only goes from Red - unplugged PCIe cable to Blue/White - plugged - it does not cycle.

          I have cleared BIOS by removing battery

  • What BIOS revision are you running?

    Worthwhile putting the old card back in, and updating the BIOS:

    https://www.asrock.com/mb/Intel/Fatal1ty%20Z170%20Gaming%20K…

    If using a DisplayPort cable also worthwhile updating the 1060 UEFI firmware, once you have the system up & running:

    https://www.nvidia.com/en-us/drivers/nv-uefi-update-x64/

    • Just using DVI at the moment

      BIOS version 7.30 - seems to be the most recent.

      • Try with 1 stick of Ram only, and using a different pci-e slot.

        Also worthwhile clearing the CMOS using the motherboard jumper.

        If issue persists next would be PSU, and finally checking the cpu socket for any bent pins.

  • How old is the psu ? Normally i would say 650 watts is plenty for your specific build, but the older the psu gets the worse then efficiency as it degrades over time.

    • Less than 12 months old

      • +1

        then it cannot possibly be an underpower problem unless the psu is faulty.

  • I too was building a PC recently and had GPU issues. If you suspect the PSU, I would first try to only leave in one stick of ram and one hard drive with the GPU and see if the motherboard would post.

    • I was going to strip it to the GPU and 1 memory stick only and see if it posts

  • is CSM enabled in the bios? I know one of my cards doesn't boot up with it disabled

    • Could this be an issue of Legacy (Win10) v UEFI?

      • How I understand it is that my GPU had a UEFI bios and a legacy bios. If CSM is disabled it will try to load the UEFI bios but it couldn’t so the computer lights up but there is no video output - the GPU couldn’t talk with my motherboard. This was with a GTX 1080 which I thought would be new enough to work in UEFI mode.

        I solved it by putting in an older gpu so I could boot into BIOS and set CSM specifically to enabled and to load the legacy rom, then put the 1080 back in and it worked fine.

        Not sure if same problem here but just putting some ideas out. you can try look at the CSM section in your motherboard manual and see if toggling the settings do anything

  • ASRock finally got back to me and I needed to change the settings from Auto to Gen3 for the PCI slot

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