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Lights and fans come on, but PC Won't start

Hi all,

I've just built my gaming PC but I can't get it to start.

At one point I got into the bios, but the PC shut down straight after because "USB device over current status detected"

So I tried disconnecting all usb slots, to no avail, that error still came up and shut down my pc after 15 seconds...

And now! It won't even show anything on the screen, all that happens is the lights and fans turn on, but nothing happens past there.

I could really use some advice, I'm so frustrated...

pc specs as follows:

Mobo: Asus Sabertooth 990FX 2.0
CPU: AMD FX8350
cooler: Corsair H100i
GPU: EVGA GTX 780 Ti
Memory: 16 (4x4) Gb 1866MHz Corsair Dominator
Storage: 2x Samsung EVO SSD 120Gb
1x WD Black 4Tb
PSU: Thermaltake Evo Blue 2.0 850W
Case: Aerocool Xpredator Evil Blue edition

Thanks in advance guys.
11 answers Last reply Best Answer
More about lights fans start
  1. try a cmos reset.
  2. try holding down the "MemOK" button on the motherboard.

    see if that gets you up and running.
  3. swifty_morgan said:
    try a cmos reset.


    I wish it was as simple as that...

    cmos reset done, no changes in status :/
  4. ingtar33 said:
    try holding down the "MemOK" button on the motherboard.

    see if that gets you up and running.



    In powered on or off state?
  5. Best answer
    breadboard.
  6. DarkEagleX said:
    ingtar33 said:
    try holding down the "MemOK" button on the motherboard.

    see if that gets you up and running.



    In powered on or off state?


    nope. turn it on... and then press the memok button. it works just fine in windows... during bootup... its safe to hit. solved my problems with my sabertooth 990fx r2.0. had a similar issue. it booted VERY slow if at all... sometimes would freeze in loading. Held down memok, until the system rebooted itself and bam. problem solved.
  7. swifty_morgan said:
    breadboard.


    Even though it was a pain to pull everything out of the case I now have a working system.
    Thank you for your suggestions and solution :)
  8. did you forget the standoffs or was there a different grounding problem?
  9. swifty_morgan said:
    did you forget the standoffs or was there a different grounding problem?


    Yeah it was the standoffs *facepalm*

    I won't be making that mistake again haha
  10. lots of people forget. lesson learned.
  11. swifty_morgan said:
    lots of people forget. lesson learned.


    Thanks again, it can be simple little mistakes that bring down the whole pc...
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