Intel® NUCs
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NUC7i5BNH Will not power up

Tim5
Novice
773 Views

Hi, 

I have a NUC7i5BNH which until recently ran well. Right now it will not power up. When plugged into the  power supply I get a solid green LED (not flashing) and the power button panel does not light up. 

I have tried the following:

1) Swapped the power supply with one from a working device and visa versa. 

2) Swapped the RAM with that from a working device. 

3) Swapped the m.2 drive with that of a working device

4) Tried a fresh SATA drive 

5) I have checked all the cables are securely plugged in

5) the fan is clean.

 

Is this device dead or is there something I have missed?

 

Thanks

Tim

0 Kudos
20 Replies
LeonWaksman
Super User
740 Views

Hi Tim,

You did everything  well. However if you know to reach the cooling fan (i.e. you know how to remove the board), I would try to disconnect the CMOS battery connector and reconnect it after 15 minutes.

Try also to hold the Power Button for 3 seconds (count 1001, 1002, 1003, 1004) and then release it. The NUC (if it is live) should boot into Power Button Menu.

Leon

 

 

Tim5
Novice
728 Views

Hi Leon, 

I tried both of these with no change in outcome

I noticed one of the wifi connectors had come off, so trying again out of desperation.

Does this mean the MB is dead?

Thanks

Tim

 

LeonWaksman
Super User
723 Views

Hi Tim,

If only the STBY LED is lit could be that the board is dead. I would still try if the problem is not caused by fault in the Power Switch. I saw already NUCs with contaminated contacts causing power ON failure. Please refer to the Technical Product Specification . On page 46 you will see item "A" - Front panel header connector. On page 51, para. 2.2.4.4 the header pins are identified. See para. 2.2.4.4.4 describing that momentary contact between pins 6-8 should replace the Power Switch functionality.

Leon

 

Tim5
Novice
694 Views

Hi Leon, 

I take a look at this and let you know how it goes.

I left the mb plugged in and it had warmed up (the fan was not running though. 

Will try your suggestions now.

Thanks

Tim

Tim5
Novice
693 Views

Hi Leon, 

no change

thanks

Tim

Tim5
Novice
686 Views
Victor_G_Intel
Moderator
675 Views

Hello Tim5,


Thank you for posting on the Intel® communities.


Based on the issue that your unit is presenting please try to complete the following steps:


1-Unplug the power


2-Remove jumper


3-Plug power


4-Press the power button for 10 sec


5-Unplug the power


6-Place jumper 2-3


7-Plug power


8-Press the power button for 10 sec


9-Unplug the power


10-Place jumper 1-2


11-Plug power


12-Press power button for 10 sec


*For the jumper location please check the PDF file in the link below on page 59.


https://www.intel.com/content/dam/support/us/en/documents/mini-pcs/nuc-kits/NUC7i5BN_NUC7i7BN_TechPr...



I look forward to hearing from you.


Regards,


Victor G.

Intel Technical Support Technician


Tim5
Novice
669 Views
Hi Victor,
Tried this a couple of times after reading your message.

Sadly, no change

Thanks
Tim
Victor_G_Intel
Moderator
656 Views

Hello Tim5,


Thank you for posting on the Intel® communities.


We are deeply sorry to hear that our recommendations didn’t make any changes, in this case, based on the information provided and the troubleshooting completed, we consider that there is something wrong internally speaking with the NUC; therefore, our strongest recommendation will be that if you are within the first 30 days from the date of purchase for this unit, try contacting your place of purchase to check the warranty options for your system; otherwise, try contacting us directly to check what will be the warranty options available for your unit; feel free to refer to this post once you contact Intel Customer Support.


Here is our "contact us" information:


https://www.intel.com/content/www/us/en/support/contact-support.html#@7


We would recommend phone or chat support venues during your regular working hours.



I look forward to hearing from you.


Regards,


Victor G.

Intel Technical Support Technician 


Tim5
Novice
647 Views

Ok thanks Victor, the machine is a couple of years old so there wont be any warranty on it 

Thanks for all the tips everyone... I may do them all again... just in case hahaha

Victor_G_Intel
Moderator
639 Views

Hello Tim5,


Thank you for posting on the Intel® communities.


You can determine if your warranty is still active here: Determine if Your Product Is Still Under Warranty, normally it takes three years since the day of purchase so your warranty period expires with us, in case it hasn’t you will need to contact Intel Customer Support to initiate the RMA process.



Chat service here: Intel Customer Support Chat, but understand that this service is offered in English only and it is subject to the normal (9:00-5:00 M-F) office hours in the Pacific (UTC-8) time zone.


Phone service:



Important note: In case your warranty period says that it has expired please bear in mind that Intel Customer Support can check for the possibility of an exception if you can provide a copy of the invoice proving that you purchased the unit less than three years ago.


*We will proceed to close this thread; however, if you need any additional information you are more than welcome to submit a new question, just bear in mind that this thread will no longer be monitored. 


Best regards,


Victor G.

Intel Technical Support Technician  


Tim5
Novice
619 Views

Hi Victor,

Thanks for this, I checked and it is still in warranty!

I will now see about getting it replaced. 

Thank you again

Tim5
Novice
586 Views
Excellent support, replacement device arrived today!! Thank you
Tim5
Novice
480 Views
The great news is I got a replacement device. The bad news is it is problematic.

I booted the machine up to install win 10, but it seemed to reboot itself. Now I don’t any video display at all, not even the bios messages.

Tried all the above again, but no improvements.

Right now, it powers on, I have the blue led ring on the front panel.

Any suggestions?

Thanks
Tim
LeonWaksman
Super User
475 Views
Hi Tim,
You got the replacment unit on Feb 23. Now it failed. Can you give more details after which event this happened?
Leon
Tim5
Novice
469 Views
Hi Leon,

I started installing windows 10, then system restarted during that process. Since then I have not been able to get video output.

Thanks

Tim5
Novice
441 Views

Hi Leon, 

Do you have any suggestions on this?

Thanks

Tim

LeonWaksman
Super User
435 Views

Hi Team,

1. To my reagreed I have no idea, except to boot from the Windows Installation USB. Since you don't see any video output now in order to enter Boot Menu (F10 when you see the Intel NUC logo), try to boot from this USB after removing the SSD.

2. The problem could be caused by failed RAM. So, try to use one SO DIMM at time (check in both slots).

3. Can you boot into Power Button Menu?

Leon

 

 

 

 

 

Tim5
Novice
424 Views
Hi Leon,

Would it make sense to remove the ram and disk, and boot up? Would that display anything?

Thank
Tim
LeonWaksman
Super User
401 Views

Hi Tim,

The minimum hardware configuration, to display BIOS or Boot Menu (after depressing F10) is one SO DIMM. Check each SO DIMM in each slot.

You don't need storage drive and in this configuration you can enter BIOS and/or boot from Windows Installation Media USB.

Leon

 

 

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