Raspberry pi 3 running way too hot

[scriptkiddy]

So i got my Raspberry pi 3 thursday this week, is set it up with raspbian with noobs because that was what already was on the sd card i got with the pi, it did set up just fine, but then i turned it off and after a little time i booted it up again, now it had troubles booting, i was getting way too hot to boot, and therefore failed to boot, i could get it to boot by blowing on the cpu to remove som heat.

When i finnaly got it booted i thought i would measure the temprature, so i ran the /opt/vc/bin/vcgencmd measure_temp command, it said 105 degrees celsius and i was only running a terminal and the cpu usage was like 5% max.

is there a problem with my pi? please help me here it is really frustrating...

[SurferTim]

My RPi3 runs at around 49 degrees celsius, but I always use a heatsink on my CPU.

[scriptkiddy]

My RPi3 runs at around 49 degrees celsius, but I always use a heatsink on my CPU.

Hm... do you know where i can write to raspberry pi about a product issue?

[SurferTim]

Maybe you should contact your supplier about the issue.

[rpiMike]

How are you powering your Pi3 ? Have you connected anything to the GPIO pins ?

You could try temporarily carefully placing a copper coin on the CPU to expel some heat.

I would also flash the latest Raspbian Stretch with Desktop to the sd card.

I use heatsinks on all of my Pi3's

[mahjongg]

Sounds like you have damaged your PI's SOC. For example with static electricity or by connecting more than 4 Volt on a GPIO .
I would return it to the reseller.
It becomes hot because the SOC developed an internal short circuit.
Without a heat sink a PI would not normally reach such a high temperature in no normal case.

[scriptkiddy]

Sounds like you have damaged your PI's SOC. For example with static electricity or by connecting more than 4 Volt on a GPIO .
I would return it to the reseller.
It becomes hot because the SOC developed an internal short circuit.
Without a heat sink a PI would not normally reach such a high temperature in no normal case.

Thanks a lot, i will return it to the seller

[decca]

Hi,

When I login to my PI3 by SHH, I receive the nice login message with the current temperature:

Temperature........: CPU: 65°C/149°F GPU: 65°C/149°F

Is this too high or do I need a heat sink?

[DougieLawson]

It's not too high, 85°C is too high.

Adding a heatsink may help depending on what workload you want to run.

[phillytim]

My Pi typically idles around 60-63'C, yet QUICKLY hits 80'C when I'd fire up Facebook on Chromium.

Like, almost in a heartbeat. Definitely appears to need a heatsink, if I ever do any sustained server activity.

[gkaiseril]

Is your Pi in a case?

[phillytim]

Is your Pi in a case?

Yes, the Raspberry Pi org standard one, the white & red.

[Imperf3kt]

Even outside a case, the Pi3b will easily shoot to ~70-80℃ if you use the internet on it.

I remedy the issue with a small heatsink and as extra measure, I added a fan that only turns on if the Pi hits ~65℃.
So far so good.

I wish people would just accept the fact the Pi gets hot under NORMAL use.

[phillytim]

Cool, go to know - thank you!

Only problem is that the Pi throttles down and web browsing becomes practically unresponsive once it hits 80'.

I just started measuring the temps, and may well throw a heatsink on it.

[bensimmo]

Try a Microsoft solution when they find they always get hot under load.
https://microsoft.github.io/ELL/tutoria ... erry-Pi-3/

(Or The Register's take on it ongoing many new sites https://www.theregister.co.uk/2017/10/1 ... erry_pi_3/ )

[phillytim]

It would be awesome if someone could sell the Microsoft-spec as a complete kit, as not many of us have 3D-printers.

[jahboater]

I wish people would just accept the fact the Pi gets hot under NORMAL use.

Mine doesn't, I have to run an artificial stress test to get it to throttle back.
A large software build with all four cores flat out doesn't cause throttling.

Code: Select all

pi@Pi3:~ $ vcgencmd measure_temp
temp=34.9'C
pi@Pi3:~ $ 

Idle, 21C ambient, a small (15mm cube) heatsink, no fan, in free air.
Its been running for months.

I would get the latest Raspbian.

[Imperf3kt]

I wish people would just accept the fact the Pi gets hot under NORMAL use.

Mine doesn't, I have to run an artificial stress test to get it to throttle back.
A large software build with all four cores flat out doesn't cause throttling.

Code: Select all

pi@Pi3:~ $ vcgencmd measure_temp
temp=34.9'C
pi@Pi3:~ $ 

Idle, 21C ambient, a small (15mm cube) heatsink, no fan, in free air.
Its been running for months.

I would get the latest Raspbian.

I have always used the latest version.

Perhaps it is just my Pis then because sitting at 5% CPU load with a YouTube video (@720p) playing through Chromium, I see temperatures between 70 and 80 degrees.

Take your heatsink off and tell me your Pi stays under 40℃

[davidcoton]

From the earliest posts about Pi3Bs, it was clear that:

• The power performance of Pi3Bs varies
• Some Pi3Bs will reach thermal throttling under a fairly light load
• Other Pi3Bs can reach a farly heavy load without thermal throttling.

I have not seen any posts which rationalise this -- no way of distinguishing in advance which individual Pis overheat easily, or why there is such a variation. But there are just too many reports to dismiss as "unusual" or due to some unexplained environmental or configuration issue.

To turn round my opening list:

• Some Pi3Bs need heatsinks to stay cool under a relatively light load
• Under heavy load or higher ambient temperatures, a heatsink and fan may be necessary
• Other Pi3Bs never need a fan, and only need a heatsink when heavily loaded.

YMMV