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?

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!)

 

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?