ASUS Maximus VII Hero motherboard Q-code 76 error on cold bootup.

Chetan_g

Commendable
Jul 5, 2017
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1,520
Respected all,
I have searched everywhere about my problem but did not get the possible solution. I am posting my query with the hope of getting some light to it

My configuration:

My configuration: Intel i7 - 4970k, ASUS Maximus VII Hero motherboard, 1 stick of 8 GB RAM, NVIDIA GTX 970 GPU and Seasonic 650 watts power supply

I am experiencing a strange issue. Some days back I found out that my computer was getting hot and therefore I decided to reapply the thermal paste and replace the stock cooler with cooler master hyper 121 led.

So, I did replace the stock thermal paste ( removed it by 95% Iso propylene alcohol) then applied artic silver 5 compound (pea size method), and finally attached the aftermarket 121 cooler master hyper cooler. Finally checking all things at their place and seated neatly I booted up the computer, however, I did not got the post beep sound (1 beep) - the CPU fan was running, the GPU fan was running but there was no display on the screen. The Q-code showed error code 77 error and then 76 error continuously.

*Then, I switched off everything and began to inspect by removing every component one by one, but all in vain, the problem persisted. After a while, when I was not getting any solution, I reseated every component back again and booted up the computer still no response got code 76. Then I again switched off and tried to again boot up -I did this 2 to 3 times - and suddenly out of the blue, the computer booted without any error (heard the pleasant 1 post beep sound). I checked the temperature of CPU - it was good 39 degrees on no load - so that means the installation was perfect. Then my computer ran very smooth like no problem occurred at all. I switched off the computer and went to sleep.

*Next morning, again the same problem - no boot, no sound, CPU fan running and getting annoying code 76 error. This time I did not open up the hood, however, I did switch off then waited for 20 sec. and again boot the computer -got the same error - again switched off and boot - got the same error, so, I repeated this "switch off and boot" method for exact 7 times and about, say, 25 minutes my computer boot without any error, and ran perfectly.

2nd day, the same problem, I tried to change the display ports but still, the problem lingers.

I am not getting what actually the issue is. And how I can rectify it? Is my problem is related to the motherboard or something else? Please please help me to figure out the problem.

My configuration: Intel i7 - 4970k, ASUS Maximus VII Hero motherboard, 1 stick of 8 GB RAM, NVIDIA GTX 970 GPU and Seasonic 650 watts power supply
 
Solution
So finally I was able to figure out what actually the problem was and who was the culprit behind all this. I tried to show my motherboard and CPU to computer expert they told me that my MB and CPU died - Anyways, I brought my PC back from the shop and started all again tweaking the error. Again doing the things what I did before and suddenly I found that there was one screw that was lying proximity to CPU socket in which the hinge of the CPU socket gets fix, which I had not gave attention much - Highlighted in screen shot attached.

mm99o7.jpg



I was not sure that it could be the cause of the error, I just again tighten up that screw with bare-hands (with my digits) and started the system (finger crossed)...
Not sure which bit of hardware your system does not like but it is stopping where the DXE is still trying to communicate with the hardware before handing over to eh UEFI BIOS.

Could you please tell me what was the last 4 digits on the white sticker found between your SATA ports and the 24 power connector. And what your current bios version is please.

thinking maybe its your bios
 

Chetan_g

Commendable
Jul 5, 2017
8
0
1,520


Hi, Thanks for replying, I totally agree that it might be a PCH DXE initialization error (I actually do not have clue what actually this error is?). Also motherboard manual also says 73-77 PCH DXE initialization (PCH module specific)

Also, I saw (just observed) that my CPU led on the motherboard is solid red when code 77 is reflecting- (kindly find the screenshot attached.) I have attached both the screen shots when code 77 is reflecting and when my system is running perfectly (no code 77 and no CPU solid led present)

xe0mq1.jpg


2ceqk9t.jpg


There is no white sticker between my SATA ports and the 24 power connector. My current BIOS version is 2.16.12

What actually my problem is all about, sometimes it starts, sometimes not. I am really not getting what is this issue is all about. Please help
 

Chetan_g

Commendable
Jul 5, 2017
8
0
1,520
So finally I was able to figure out what actually the problem was and who was the culprit behind all this. I tried to show my motherboard and CPU to computer expert they told me that my MB and CPU died - Anyways, I brought my PC back from the shop and started all again tweaking the error. Again doing the things what I did before and suddenly I found that there was one screw that was lying proximity to CPU socket in which the hinge of the CPU socket gets fix, which I had not gave attention much - Highlighted in screen shot attached.

mm99o7.jpg



I was not sure that it could be the cause of the error, I just again tighten up that screw with bare-hands (with my digits) and started the system (finger crossed) and voila the system ran perfectly.

So, if someone is having the same issues like I was having, do try to fix up (tighten up) the screw proximity to CPU socket. Problem fixed.

I would like to thank you, folks, for your help and valuable suggestions. I request the admin to close this thread, the problem is solved. :)
 
Solution


that screw is supposed to be there bud
 

Chetan_g

Commendable
Jul 5, 2017
8
0
1,520


Yes, I just tighten that screw : lol: , thanks, bud. :)