Is it really a DOA CPU?!

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Berightback

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Aug 27, 2014
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So, I'm building up my next computer, got an asus Z97-A mobo, had to update the bios for my i5-4690k to work so I used a compatible celeron, did the update, turned everything back on to make sure the update was ok. I put the i5 in, thermal paste, heatsink, fan, plug the fan, all power, everything outside the case on my trusty esd pad, ram is properly seated and...

A red CPU_LED turns on (and stays on), check the cpu, put everything back, same problem, clearing the CMOS (even by removing the battery for the afternoon) doesn't help either. I just got off the line with asus and the tech is pretty sure my cpu is DOA. Has anyone heard of such a thing? Am I missing something?
 
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Shaun o

Shaun o

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Oct 7, 2007
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A red light on a Asus board, new models mean that there is no extra voltage detected to drive the CPU.

That means you should double check that you have connected the eight pin block connector from the Psu to the motherboard to the eight pin 12v power socket of the board located between the two long heat sink modules of the mobo (in Black color) , above the cpu socket.
Make sure they are plugged in or seated right in the socket.

The second error to give a red light is if you have put a Pci-e based graphics card in the board slot.
You must first power the system off take the card out.
Then connect the Vga, Dvi or Hdmi cable used with the monitor to the back of the mobo graphics out put ports.
Some boards do a check for the video cable connected if the on board graphics are on first build set as default video display out put leading to a red light on the board.

Once you get it running with that, and the back video ports of the motherboard.
Enter the bios and change the Primary default graphics adapter to Pci-e in the list dealing with graphics options.
If you have the option of disabling IGPU then disable.
Save the settings before exiting the bios so your current changes are stored.
Power the system total off.
Put your pci-e based graphics card back in the slot, connecting all of the 12v Pci-e power connectors from the Psu to the edge or Back of the Pci-e based graphics card in the Pci-e slot.
Connect the Video cable from the mobo to the Pci-e based card, and the selected cable or port type the monitor uses.
Power the system on and it should post.



 
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B

Berightback

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Aug 27, 2014
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I already quadruple checked every connector, graphics card is still in its box and I used the onboard graphics when I updated the bios.

It's like seeing a unicorn
 
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Shaun o

Shaun o

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Oct 7, 2007
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I would take the cooler off and have a quick check on the state of the gold fins in the Cpu socket it`s self then.
Just to make sure it`s not a problem with a bent leaf, or a slight miss align.

Failing that it`s RMA time for the cpu me thinks yes ?

 
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