Intel NUC7i5BNH won't start

[KParé]

Hi,

My NUC was working for a long time without any issues...

I tried to power it the next morning and nothing happens...

I already tried the online no boot wizard but it didn't help.

When the power cable is plug-in the power button led lights up on the front panel (Amber). The green led lights up, labeled FRONT_PANEL, on the motherboard, the case is open since the issue.

When I pressed the power button I see the led that turns off then on quickly then stay Amber. If I but my ear next to the board and pressed the power button I can ear the noize stop 2-3 sec then come back. I didn't unscrew the board from the case yet. I test the power cable with muti meter and I see the 19V. I properly test my HDMI cable with my laptop next to it, no issue there. There's nothing that is displayed on the screen.

* [FAIL] I tried to boot with SSD / SATA cable

* [FAIL] I tried to boot without SSD / SATA cable connected

* [FAIL] I tried to boot with crucial 16GB DDR4-2133 SODIM 1.2v CL15 diff slot

* [FAIL] I tried to boot by removing crucial 16GB DDR4-2133 SODIM 1.2v CL15

* [FAIL] I tried to leave the NUC for 48hours unplug

* [FAIL] I tried to hold power button for more the 10 seconds

I bought that NUC from amazon 2-3 years ago

Here's couple questions:

What are my options?

* I'm in Montreal Canada any suggestion for a support site / repair shop?

* Could unplugging the BIOS battry help? If so How long?

[LeonWaksman]

Yes, in this case I would unplug the Power Cable and the CMOS battery, then reconnect it after 15 minutes. You will need to remove the board for this. Be careful with the connectors of the WiFi antennas.

Leon

[n_scott_pearson]

When you press the power button, do you see the LED flashing on and off a few times or is it only once? If it is flashing on and off more than once, it may be indicating a problem. Look here for information on this LED flashing: Intel NUC Blink Codes and Beep Codes.

...S

[KParé]

Hi Leon & Scott

Scot: the led only blink once and I had a look at Blink Codes page before.

Thanks for sharing it and sorry for not specifying it.

* [SUCCESS] I tried to remove the CMOS for >= 15 minutes and replugging the power adapter to the NUC and the power button & the surrounding became blue.

Once everything was plugged again, SDD & cables, archlinux booted again.

NOTE1: I had to set the Date & Time since I was back to 2009-01-01. I did it from BIOS: F2+Main/System Date & Time

NOTE2: I had to unplug the SATA 6.0 Gb/s connector, SATA power connector , 2 wifi antenna cables, Digital microphone array connector, Front panelLED ring connector and finally Battery (CMOS)

https://www.intel.com/content/dam/support/us/en/documents/boardsandkits/NUC7i5BN_NUC7i7BN_TechProdSpec.pdf

Any ideas why this happens?

[LeonWaksman]

"Any ideas why this happens?" - you mean why your NUC failed to start? Hard to say now. Could be different things. Could be some Windows or Bios update?

Leon

[KParé]

Leon,

> "Any ideas why this happens?" - you mean why your NUC failed to start?

Yes why it failed?

> Hard to say now. Could be different things. Could be some Windows or Bios update?

I'm not running Windows and didn't update the BIOS since I bought it.

But yesterday I have updated the BIOS from BNKBL357.86A.0047.2017.0518.1824 to BNKBL357.86A.0081 ...

https://downloadcenter.intel.com/download/29347/BIOS-Update-BNKBL357-86A-

thx again

[n_scott_pearson]

You upgraded all the way from BIOS 47 to BIOS 81? That's a big jump; a lot can happen over that many updates. Still, you are running now and could leave things as they are -- but, just to be sure, I would recommend that you reinstall this latest BIOS using the BIOS Recovery process.

...S

[n_scott_pearson]

Not sure of cause, but I have seen this happen with other NUC models as well. In some cases, just unplugging the power brick for a minute or so gets it back, but the severe cases require the hardware-level CMOS reset that unplugging the battery causes.

...S