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Error code 99?

When I power up the system, the Bug error code displays at 99. Graphics cards and fans all spin up

Motherboard is an Asrock 970fx extreme 4
7 answers Last reply
More about error code
  1. What graphics card using? Have you connected the required PCIe cables?
  2. alexoiu said:
    What graphics card using? Have you connected the required PCIe cables?


    Using a R9 270x, yeah plugged the HDMI cable from the card to the TV and the power connectors (2x6pin)
  3. Believe it or not if you look in the manual that came with the board it tells you what the error is related to.

    Dr debug.
    0x99 Super IO Initialization

    Page 37 of the manual.

    IO means anything connected to the board by any interface is not initializing.
    Have you just built the system, then it is saying a device is not connected properly.
    Or there is a lack of power to a device causing the IO error.

    Input Output error. It cannot communicate with a part or device through its slot/ bus interface. Or due to a lack of power.

    Check all the components are seated flush and level and aligned in parallel with Pci-e slots ect.

    For example the weight of a graphics card can pull on a Pci-e slot.
    So the contacts from the slot to the finger connections of the card don`t contact tight on one side of the Slot to the card.

    Sometimes you have to unscrew and level it up. So it is more parallel with the pci-e slot.
  4. Shaun o said:
    Believe it or not if you look in the manual that came with the board it tells you what the error is related to.

    Dr debug.
    0x99 Super IO Initialization


    IO means anything connected to the board by any interface is not initializing.
    Have you just built the system, then it is saying a device is not connected properly.
    Or there is a lack of power to a device causing the IO error.

    Check all the components are seated flush and level and aligned in parallel with Pci-e slots ect.


    For example the weight of a graphics card can pull on a Pci-e slot.
    So the contacts from the slot to the finger connections of the card don`t contact tight on one side of the Slot to the card.

    Sometimes you have to unscrew and level it up. So it is more parallel with the pci-e slot.




    I've currently not put it in and it's on a test bench just now, the cpu RAM graphics card and hard drive are all connected. If I put it in and connect all the wires, (audio, front panel etc will it maybe work)
  5. It may well do, Don`t forget though that the cpu in the socket can and will also cause an IO error.

    So I would have a check it is seated right in the socket and look for any bent or missing pins,on the cpu.

    While out of the case.
  6. I'd leave the board out of the case until solving the issue.
    What CPU and power supply using and what's the board's BIOS version (check the sticker on the BIOS chip)?
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