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AnsweredASUS Z97-Pro Won't POST - Red CPU LED, 00 Debug Code

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martinch
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2014/11/24 09:28:16 (permalink)
Hi guys,
 
I finally got 'round to upgrading (aged) my PC, and it all went well until I poked the power button.  
 
When I powered it on for the first time, the fans span briefly (pulsed), and then stopped.  After a few seconds delay, everything started spinning again (as though it has reset itself).  Looking at the motherboard, the debug panel reads "00", which according to the manual is not used.  Of the status LEDs on the motherboard, the DRAM LED is lit green, the CPU LED is lit red, and the GPU/Boot Device LEDs are off.  There's no signal to the monitor, either from the GPU or the iGPU.
 
Does it look like I've been exceptionally unlucky and got a dud CPU/motherboard?  Or could it be something else?  I seem to remember reading that the Z87-Pro had issues with Noctua coolers, where they span too slow and it triggered a "CPU fan failed" error and needed a BIOS update..?
 
Any ideas gratefully received.
 
P.S. Full spec is in my signature.
 
++EDIT: Have used USB BIOS Flashback to update the BIOS to 1304 (5th August), and tried it without the GPU ... still no go
 
 
post edited by martinch - 2014/11/24 13:46:23

Current PC: Intel Core i7 4790K, Noctua NH-U12S, Asus Z97-Pro, 16GB Corsair Vengeance Pro 1866Mhz RAM, Samsung 850 Pro 256GB, Crucial MX100 512GB, Western Digital Black 2TB, EVGA GTX 970 SC (blower), Pioneer BDR-209DBK, Fractal Design Define R4 + Noctua NF-A14 FLX fans, Corsair AX760 PSU, Dell U2713HM

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NordicJedi
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Re: ASUS Z97-Pro Won't POST - Red CPU LED, 00 Debug Code 2014/11/24 21:49:58 (permalink) ☼ Best Answerby martinch 2014/11/29 08:59:01
When it's not POSTing, disconnect pretty much everything except CPU and memory, pull the board from the case, use the onboard video, and try booting up.  Make sure you have the 24pin connector and the 8pin power connector plugged in.  Make sure the 8pin connector is for the CPU, and not a 6+2 pin connector for video cards.  Make sure the memory is in the correct slots for the board.  
 
Assuming you've tried those, it's time to pull out the CPU and check for bent pins in the CPU socket.

6012mhz on L/N2 
5321mhz on L/N2
5091mhz on air
The Lightsaber
The Emperor Reborn
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martinch
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Re: ASUS Z97-Pro Won't POST - Red CPU LED, 00 Debug Code 2014/11/25 00:36:43 (permalink)
NordicJedidisconnect pretty much everything except CPU and memory, pull the board from the case, use the onboard video, and try booting up.

Haven't tried removing it from the case, but otherwise, I've done that.
 
NordicJediMake sure you have the 24pin connector and the 8pin power connector plugged in.  Make sure the 8pin connector is for the CPU, and not a 6+2 pin connector for video cards.

Done that (they're all labelled on the plugs, so it's impossible to get them wrong)
 
NordicJediMake sure the memory is in the correct slots for the board.

Done that (counting from the left, first and third slots).
 
NordicJediAssuming you've tried those, it's time to pull out the CPU and check for bent pins in the CPU socket.

I did give it a quick check and couldn't see any (to be honest, it's kinda hard to focus on them), but I'll give it another look.

Current PC: Intel Core i7 4790K, Noctua NH-U12S, Asus Z97-Pro, 16GB Corsair Vengeance Pro 1866Mhz RAM, Samsung 850 Pro 256GB, Crucial MX100 512GB, Western Digital Black 2TB, EVGA GTX 970 SC (blower), Pioneer BDR-209DBK, Fractal Design Define R4 + Noctua NF-A14 FLX fans, Corsair AX760 PSU, Dell U2713HM

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martinch
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Re: ASUS Z97-Pro Won't POST - Red CPU LED, 00 Debug Code 2014/11/26 00:28:02 (permalink)
NordicJediAssuming you've tried those, it's time to pull out the CPU and check for bent pins in the CPU socket.

I've visually inspected the CPU socket with a magnifying glass, and couldn't see any bent pins.  I spoke with the retailer, and they seem to think it's a dud board (first time I've had a major component DOA )...

Current PC: Intel Core i7 4790K, Noctua NH-U12S, Asus Z97-Pro, 16GB Corsair Vengeance Pro 1866Mhz RAM, Samsung 850 Pro 256GB, Crucial MX100 512GB, Western Digital Black 2TB, EVGA GTX 970 SC (blower), Pioneer BDR-209DBK, Fractal Design Define R4 + Noctua NF-A14 FLX fans, Corsair AX760 PSU, Dell U2713HM

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NordicJedi
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Re: ASUS Z97-Pro Won't POST - Red CPU LED, 00 Debug Code 2014/11/29 04:56:33 (permalink)
Sorry to hear that.  Hopefully, swapping out the board will take care of that.  

6012mhz on L/N2 
5321mhz on L/N2
5091mhz on air
The Lightsaber
The Emperor Reborn
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martinch
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Re: ASUS Z97-Pro Won't POST - Red CPU LED, 00 Debug Code 2014/11/29 08:58:53 (permalink)
NordicJediSorry to hear that.  Hopefully, swapping out the board will take care of that.

Got the motherboard replaced, and I now have a booting system.   Just installing all the software and associated patches, then "fixing" Windows 8.   Then on to copying data over, and installing games...

Current PC: Intel Core i7 4790K, Noctua NH-U12S, Asus Z97-Pro, 16GB Corsair Vengeance Pro 1866Mhz RAM, Samsung 850 Pro 256GB, Crucial MX100 512GB, Western Digital Black 2TB, EVGA GTX 970 SC (blower), Pioneer BDR-209DBK, Fractal Design Define R4 + Noctua NF-A14 FLX fans, Corsair AX760 PSU, Dell U2713HM

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Re: ASUS Z97-Pro Won't POST - Red CPU LED, 00 Debug Code 2014/11/29 10:53:25 (permalink)
Good to hear!  I'm glad, despite all the troubleshooting, that it turned out to be just the board.  Enjoy your new system!

6012mhz on L/N2 
5321mhz on L/N2
5091mhz on air
The Lightsaber
The Emperor Reborn
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martinch
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Re: ASUS Z97-Pro Won't POST - Red CPU LED, 00 Debug Code 2014/11/29 11:03:14 (permalink)
Thanks.   Looking forward to having it fully set up and getting to use the games I got in the last Steam sale...

Current PC: Intel Core i7 4790K, Noctua NH-U12S, Asus Z97-Pro, 16GB Corsair Vengeance Pro 1866Mhz RAM, Samsung 850 Pro 256GB, Crucial MX100 512GB, Western Digital Black 2TB, EVGA GTX 970 SC (blower), Pioneer BDR-209DBK, Fractal Design Define R4 + Noctua NF-A14 FLX fans, Corsair AX760 PSU, Dell U2713HM

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