PC stuck in boot loop

Discussion in 'General Hardware' started by mnphokus, Jan 11, 2017.

  1. mnphokus

    mnphokus n00bie

    May 23, 2016
    Hi all,

    I've been having an issue with my desktop where it gets stuck in boot loop. I press the power button, lights turn on, cpu fan and gpu fan start to spin up but 1-2 seconds later it shuts down and tries to boot up again. This just started happening recently and I've ran everything fine for about 6 months.

    I tried a different motherboard, replaced the PSU, took one stick of RAM out, only had one SSD connected but for the life of me I can't figure it out.

    Any thoughts?

    Case: Corsair Obsidian 250D
    MB: Asus H97I-Plus 1150 Mini-ITX
    CPU: Intel I7-4790K
    RAM: G.Skill 16GB (8x2) DDR3 1333 - only have one stick in, though
    GFX: MSI GeForce GTX980TI Gaming 6G LE
    HDDs: Two Intel SSDs

    Just to add, there's a solid red LED that comes on during the boot loop.
    Last edited: Jan 11, 2017
  2. Spartacus

    Spartacus [H]ard|Gawd

    Apr 29, 2005
    See if it will run out of the case.

    What is the PSU model?

    ETA: Lookup what the red LED means.

  3. yadnom

    yadnom Limp Gawd

    Oct 27, 2006
    Take out GPU and try booting with onboard video.
  4. pendragon1

    pendragon1 [H]ardForum Junkie

    Oct 7, 2000
    yup I agree! take everything out of the case and test just the bare min, board, chip, ram, psu
  5. Kyle_Bennett

    Kyle_Bennett El Chingón Staff Member

    May 18, 1997
    Honestly, if I build a system, I build the entire thing on the mobo box, one piece at a time. Mobo, cpu, ram, SSD, install the OS. Then add one thing at a time. Of course, I guess now days you don't need anything besides those parts.
    pendragon1 likes this.
  6. mnphokus

    mnphokus n00bie

    May 23, 2016
    Thanks for the suggestions, all. I looked up the red LED and it's the DRAM_LED. I took everything out of the case, put it back one by one and was able to find the culprit.

    I had two RAM sticks and I put in the bad module instead of the good one. So far so good - PC goes to sleep and wakes up fine even after being off for some time.

    Thanks again.