Question: I recently purchased a Raspberry Pi 3, which I understand to have the BCM2837 chip. When I purchased a codec from raspberrypi.com, I was asked to run:

cat /proc/cpuinfo

I was surprised to see the following output at the bottom:

Hardware : BCM2835
Revision : a22082
Serial : 

Why should I see this output from a new Raspberry Pi 3, instead of the BCM2837 chip?

Answer: 
Quoted from a Raspberry Pi engineer :

> 
> It's just a kernel/device tree anomaly. Upstream have chosen to denote
>  all the Pi's as BCM2835, whereas the original Pi specific kernels
>  would display BCM2708, BCM2709, or BCM2710 as appropriate.
> 
> 
> Whether it is more correct to use 2708/9/10 or 2835/6/7 is also
>  sometimes debated - the former are the silicon, the latter are the
>  packaged chip (which in some non-Pi cases also included an independent
>  RAM die within the same package).
> 
> 
> 

<https://www.raspberrypi.org/forums/viewtopic.php?t=188544>

For info my Pi3 does the same 'cat /proc/cpuinfo' :

Hardware : BCM2835
Revision : a02082
You shouldn't. That's the chip for the original Raspberry Pi.

1. Make sure you have a Raspberry Pi 3. Compare yours to the picture below. Check the markings on the chip and the PCB.
[![enter image description here](https://i.stack.imgur.com/z32Vc.jpg)](https://i.stack.imgur.com/z32Vc.jpg)
2. The output from `cat /proc/cpuinfo` will also tell you how many cores you have. RPi3 has 4 cores.
3. You could have an outdated OS that doesn't have the proper drivers for the CPU, causing it to not getting recognised properly. Which version of which OS are you running? Where did you get the installer from?