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Helios4 doesn't boot anymore, only chirping noise


dtx1

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Hi,

 

after some time on storage i tried to reativate my batch 2 helios4 only to be greeted with a seemingly broken device.
Tried the following:

1. Flashed a new good SD Card with Armbian (golden sundisk one)

2. unplugged all harddisks in my helios 4

3. inserted SD-Card and plugged in in.

Result:

Orange blinking on the Network Port

Green blinking next to the Power slow

USB-TTY does not show up

Tt does not boot

 

I hear a slight chirping noise synchronous with the green LED. It comes directly from the board not the fans, harddisks or PSU. Sounds like  a fan briefly rubbing against something but it's comming 100% certain from the board.

Is my Helios4 broken? That would be absolutely saddening because theres no ECC Memory Replacement available.

 

Any Ideas?

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Measure the power output from the power supply. Make sure to have everything disconnected from the helios and no shorts ( dont put it on a metal surface ) before trying again.

 

For measuring the power supply, you can either measure on the power plug directly or on the hdd connectors. Check the images here: 

 

https://wiki.kobol.io/helios4/hardware/#connector-interface-list

(J19 middle two pins are GND, outer pins should be +5 and +12V; careful not to short them!)

 

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I have the exact same problem. The board does not recognize any HDDs, attempting to boot it solely off SD card (with HDDs and fans disconnected) one can clearly hear a chirping sound coming from the board itself.

 

Can anyone recommend a good replacement AC/DC adapter?

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