Red Light on DX580SO Motherboard

System will boot but after a while a red light turns on next to CPU and system shuts down
Melinda Burnscomputer supportAsked:
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JohnBusiness Consultant (Owner)Commented:
That appears to be an overheating issue.

Make sure the Fan is always ON and running.

Get Real Temp (Google), install it, run it and check CPU temperature while running.  Look for high temperatures.

You may need to remove the CPU, clean it carefully and add a thin layer of new thermal compound.
als315Commented:
In addition to John's comment: there are two leds, one - overheating of processor, second - of voltage regulator board:
leds
Melinda Burnscomputer supportAuthor Commented:
Ok I removed the CPU and cleaned it and re applied Thermal paste but it still overheats.  Fans are all working fine that I can see.  could I be putting too much Thermal Paste?
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JohnBusiness Consultant (Owner)Commented:
Just a very thin layer so try that once more, otherwise the CPU itself could be faulty. Less likely, the power supply could be putting out incorrect voltages
Melinda Burnscomputer supportAuthor Commented:
I have already replaced the power supply too.  I am at my wits end trying to figure out what is bad. I even replaced the graphics card but it did the same thing.. any other ideas. It is a new motherboard.
andyalderCommented:
Have you confirmed it is the overtemp LED rather than the VR voltage LED?
JohnBusiness Consultant (Owner)Commented:
Did you use the old CPU in the new Motherboard? Or is the CPU new as well?

Remove the Hard drive and anything like a CD-Rom device (so all accessories except Motherboard, Power Supply and Memory) . Even remove all but one module of memory.

Now boot from a bootable USB Key. What happens?

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nobusCommented:
check the temps in the bios, after the red light is on
that will show what is happening
JohnBusiness Consultant (Owner)Commented:
Thank you. I hope you are up and running now.
nobusCommented:
it would be polite to let us know the outcome
Melinda Burnscomputer supportAuthor Commented:
Actually Customer decided not to proceed. but I am guessing at this point it was the CPU because i was using the old one and that was the only hardware that I did not replace.
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