My third Orange Pi Zero came last week, yesterday I plugged it and had heating issues... So I started reading, learning and testing....

 

Setup:

OPiZ-1: 256 MB, no SPI flash - Has extension board plugged - for comparison

OPiZ-2: 512 MB, with SPI flash

OPiZ-3: 256 MB, with SPI flash (new one with problem)

 

Test conditions:

All with (newish) Sandisk Ultra 16 GB Class 10

All new formatted (SD Formatter) and burned/validated (Etcher v1.0.0) with Armbian_5.25_Orangepizero_Debian_jessie_default_3.4.113.img

All on my desk - side by side, ambient temperature 25.0-25.1 C (20 cm from boards, no air flow)

No case, no passive/active cooling

Power supply 7 port 5V 36W total, 2.4A per port (wait, wait, I tried others, separated etc - I'm testing them with USB V/A/W tester - 5.2-5.3V / 0.260-0.350 A)

First install done, rebooted,   apt-get update && apt-get upgrade'd, rebooted, tested

Your issue report is not a valid bug report per the Armbian bug reporting instructions (https://www.armbian.com/bugs).  With limited resources the Armbian project is only able to spend time on issues where all the requested information has been provided and for only the boards/images/software that are supported.  Your report is invalid for one or more of the following reasons (non-exhaustive list):

 

• it is for an unsupported board or image (CSC/EOS/WIP/edge)
• it is for software that is not supported (such as userspace modules installed on top of the core operating system)
• it has been logged in the wrong forum (for example requests for help that are not actual bug reports)
• it lacks requested data (armbianmonitor output)
• it could have been easily solved by a quick search and/or reading documentation

 

Please review what you have submitted and the bug logging instructions (https://www.armbian.com/bugs) and either add the required information or open a new topic in the correct forum (such as Common issues / peer to peer technical support or General chit chat)