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CLOCK_WATCHDOG_TIMEOUT, followed by solid yellow DRAM_LED, no boot.

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#1 bacontf2


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Posted 11 June 2017 - 10:27 AM



First of all I'd like to say that I'm not sure if I'm posting this in the right place as I am new to this forum. I also do not have a dump file as the issue I'm having involves the computer not being able to boot.

I recently upgraded my computer, using a motherboard bundle and a graphics card. Here are the specs:

Motherboard: ASUS STRIX Z270H Gaming Motherboard
CPU: Intel i7 6700K, not overclocked
RAM: Crucial Ballistix Sport, DDR4 2400MHz (2x8GB)
GPU: ASUS STRIX Geforce GTX 1070
PSU: Corsair CX550M, 550W

Upon first completing this build, I booted it up and it was fine. It has been working for 3 days, however last night I left it unattended for 2 minutes and came back to a blue screen with the error 'CLOCK_WATCHDOG_TIMEOUT'. It told me that it was gathering error information and that it would restart for me. However it was stuck on 30% for at least 15 mins so I hard shutdown the computer from the button. When attempting to turn it back on, the computer wouldn't POST. I left it until this morning to have a closer look.

So this morning, I tried again to switch it on, but still no POST. The motherboard I am using has some POST LEDs in the top right corner. When I power on the computer, I can see that the CPU passes the POST, while the DRAM_LED stays lit up yellow for about a second or two, and then goes off. So I have run through some RAM troubleshooting steps, to no avail. 

So far, I have tried removing one stick, replacing it and removing the other, and trying both on the other channel.

I just don't understand how this could happen now, after it has been working for 3 days already?!

Any help would be most appreciated.

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#2 bacontf2

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Posted 11 June 2017 - 12:16 PM

Bump, I'm at a loss here, I've tried everything I can think to do.

#3 usasma


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Posted 12 June 2017 - 06:38 AM

A bit of theory first....

If you get a Windows Blue Screen, that means that the Windows components needed to generate the BSOD have loaded (in other words, Windows has at least loaded partly).

More info on BSOD generation here:  http://www.carrona.org/dumpgen.html


The first thing to try when you have problems with new components is to unplug/replug everything back in.

Ensure that the connections are clean, free of dirt/dust, and are firmly connected.

I've fixed many problems that I've had by doing this.


The next thing (IME) is to strip the system down to essentials and test that way.

Here's a suggestion that may help you (you may not be able to do all of it, but I hope that it'll at least give you some ideas):  http://www.carrona.org/strpdown.html


Beyond that, I'd suggest posting over in the Internal Hardware forums for some more expert suggestions:    http://www.bleepingcomputer.com/forums/f/7/internal-hardware/ 

My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.

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