Jump to content

Welcome to Geeks to Go - Register now for FREE

Geeks To Go is a helpful hub, where thousands of volunteer geeks quickly serve friendly answers and support. Check out the forums and get free advice from the experts. Register now to gain access to all of our features, it's FREE and only takes one minute. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation to your fellow members, get your own private messenger, post status updates, manage your profile and so much more.

Create Account How it Works

What's the problem? (pc pwrs on, pwrs off in a few seconds)

  • Please log in to reply



    New Member

  • Member
  • Pip
  • 2 posts
So currently I have the bare minimum of my pc sitting on my desk.


-Connect the PWR on pins.
-PC powers up for 7-8 seconds and then powers off.
-Pause for 2-3 seconds, then powers on again for 2-3 seconds and then off again.
-Phase LEDs show green,green,yellow,red.

Gigabyte EP 43-DS3R
OCZ 850w PSU (also have an generic 550W)
2GB G.Skill 6400
Titan Fenrir TTC-NK85TZ CPU Cooler

ATX 12V and the main ATX plugged in.
CPU and CPU cooler on (cleaned and re-applied with new TIM)
1 stick of RAM in.

What I've tried so far (no success though ):

-Generic known working PSU
-Both sticks of RAM individually, no RAM, 2 sticks of RAM togerth.
-Clearing CMOS

All lead to the same problem as I mentioned above.
So what is wrong, what can I try? Who or what is at fault?


Edited by byter, 07 June 2009 - 03:09 PM.

  • 0


Neil Jones

Neil Jones

    Member 5k

  • Member
  • PipPipPipPipPipPipPipPip
  • 8,476 posts
The LEDs, according to the manual, are only functional so far as CPU load is concerned. More lit LEDs = more processing power. So I wouldn't pay much attention to them.
Issues like these are usually caused because the heatsink isn't clipped down properly. On those Intel coolers if the heatsink isn't 100% square the temperature shoots through the roof, hits 80 degrees straight off and cuts the power off, though this doesn't explain why it power cycles. I suggest you try the processor and PSU in another board that supports that processor and that you know works.
  • 0



    New Member

  • Topic Starter
  • Member
  • Pip
  • 2 posts
I'll reseat the cpu and cooler first and see if that has any effect, fingers crossed it will stop the loop. It's never that simple though is it, bloomin pc's. :)
  • 0



    New Member

  • Member
  • Pip
  • 3 posts
This is interesting because I experienced the same exact problem last week while helping a friend put together his new build. Although I'm not quite sure what exactly I did to fix the issue.

- I unplugged EVERYTHING. No cables/pins were left untouched.
- Then I removed the heatsink/fan and re-applied thermal compound.
- Removed all RAM, then put back only 1 stick into slot 1.
- Reconnected PWR pin, ATX main, ATX 12V connector, and heatsink fan.

I powered the system on and the LEDs stayed on for the routine 8-10 seconds before going out. For a moment I thought that didn't fix it, but I noticed the heatsink fan was still running. I forgot that those LEDs do not stay on permanently.

I didn't have the issue again. It could be it just had a bad connection somewhere. Just make sure you're not only focusing on the LEDs staying on.

The setup was:
- Gigabyte GA-EP45-UD3P
- Quad Core Q6600 Kentsfield
- G.Skill 4GB (2 x 2GB) 6400
- Corsair CMPSU-620HX 620W
  • 0

Similar Topics

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

As Featured On:

Microsoft Yahoo BBC MSN PC Magazine Washington Post HP