Red hot pi, normal?

[abrugsch]

If it's only getting hot in the case, maybe you have a short somewhere that only happens when it's all squished in place. There is no way a zero will get red hot just from being in a case the cpu in those is very cool running even under load. Just idling, nah.
Can you take a pic of your setup both in and out of the case?

[fcib]

You must be exaggerating. If your pi was "red hot" it certainly wouldn't work anymore. Unless the screen outputs a small icon in the top right to indicate overheating (or under voltage) there is no problem. I think the chip is rated for 85C before throttling or shutdown, not sure which.

After a long session of PS1 emulation (uses about 65% CPU) and my low battery light turned on, I quickly left emulationstation to check the temperature in the console and I was at 70C. Hot to the touch. Perhaps the chip will have a reduced lifespan running at higher temperatures, but 70 is reasonable and at $5 you can't complain.

[Lpoolm]

You must be exaggerating. If your pi was "red hot" it certainly wouldn't work anymore. Unless the screen outputs a small icon in the top right to indicate overheating (or under voltage) there is no problem. I think the chip is rated for 85C before throttling or shutdown, not sure which.

After a long session of PS1 emulation (uses about 65% CPU) and my low battery light turned on, I quickly left emulationstation to check the temperature in the console and I was at 70C. Hot to the touch. Perhaps the chip will have a reduced lifespan running at higher temperatures, but 70 is reasonable and at $5 you can't complain.

? exaggerating? it is red hot, not hot... but thanks for your input....
a red square comes on in the corner if i leave it long enough it will shut its self off
also i am not complaining, i am simply asking questions to learn and find a solution.

[Lpoolm]

If it's only getting hot in the case, maybe you have a short somewhere that only happens when it's all squished in place. There is no way a zero will get red hot just from being in a case the cpu in those is very cool running even under load. Just idling, nah.
Can you take a pic of your setup both in and out of the case?

right back to getting helpful advice..... i have a lot of space internally currently so do not think anything is being squashed?
pic below of the inside i know there are a "few" lose wires but these are wrapped when closing

20161212_181133.jpg (4.52 MiB) Viewed 4462 times

i have however made some progress, previously mentioned about taking it back a few steps and just running a few things then adding more and it seems my arduino maybe causing the heating.
My pi running the screen/speakers was left on for an hour in the case and got warm but not "hot"
i than connected the arduino and within minutes the red square came on.
i have attached a pic of this close up. Because the arduino lacks the connections that the teensy has i had to connected it through the usb to my usb hub, maybe this is causing an issue but not sure how else to connect it?

20161212_181206.jpg (4.37 MiB) Viewed 4462 times