How To Install Heatsink On Raspberry Pi 3 B+

Each variant of the Raspberry Pi has a unlike Pi Revision Number. There take now been a number of revisions to the Raspberry Pi PCB then the device you lot accept in front of you could be one of a number of variants. The changes include mounting holes, modifications to the power supply circuitry, dissimilar GPIO headers and varying numbers of USB ports. The Pi two and Pi 3 introduced new CPUs and boosted retentiveness.

Finding your Pi Revision Number is a useful technique to place what model of Pi yous have and, in some cases, where information technology was manufactured.

The variants currently available are :

As new models are released this tabular array will be updated.

Model and PCB Revision	RAM	Revision	Pi Revision Code from cpuinfo
Model B Rev 1	256MB		0002
Model B Rev i ECN0001 (no fuses, D14 removed)	256MB		0003
Model B Rev 2	256MB		0004 0005 0006
Model A	256MB		0007 0008 0009
Model B Rev 2	512MB		000d 000e 000f
Model B+	512MB		0010 0013 900032
Compute Module	512MB		0011
Compute Module	512MB		0014 (Embest, China)
Model A+	256MB		0012
Model A+	256MB		0015 (Embest, China)
Model A+	512MB		0015 (Embest, China)
Pi 2 Model B v1.1	1GB		a01041 (Sony, UK)
Pi 2 Model B v1.1	1GB		a21041 (Embest, China)
Pi ii Model B v1.2	1GB	1.ii	a22042
Pi Zero v1.2	512MB	1.two	900092
Pi Zero v1.three	512MB	i.iii	900093
Pi Zip Westward	512MB	1.1	9000C1
Pi 3 Model B	1GB	one.2	a02082 (Sony, UK)
Pi iii Model B	1GB	one.2	a22082 (Embest, China)
Pi 3 Model B+	1GB	i.3	a020d3 (Sony, Uk)
Pi 4	1GB	1.1	a03111 (Sony, UK)
Pi four	2GB	1.1	b03111 (Sony, UK)
Pi 4	2GB	1.2	b03112 (Sony, Uk)
Pi 4	2GB	1.four	b03114 (Sony, UK)
Pi 4	4GB	1.1	c03111 (Sony, Britain)
Pi 4	4GB	1.2	c03112 (Sony, UK)
Pi 4	4GB	i.4	c03114 (Sony, Uk)
Pi 4	8GB	one.4	d03114 (Sony, UK)
Pi 400	4GB	1.0	c03130 (Sony, Great britain)
Pi Goose egg ii West	1GB	one.0	902120 (Sony, U.k.)

Methods for Finding Raspberry Pi Revision Number

In order to find out what hardware revision y'all have you tin can use two methods

Method 1 – Pinout Utility

In the new versions of Raspbian the pinout control was added. This can exist run at the command prompt or via a terminal window :using :

            pinout

and the output will expect something similar this :

Pinout Command Output showing Pi Revision Number

Equally well as the Pi Revision number this method also provides lots of other data including the position of GPIO numbers on the Pi'south GPIO Header and amount of RAM fitted. More data almost the Pi's GPIO header can be found on the uncomplicated guide to the GPIO header page.

Method ii – cpuinfo File

The traditional method of finding the Pi Revision Number was reading the "cpuinfo" file by running the following command at the control prompt or via a final window :

                          cat /proc/cpuinfo

This will give you a text output something like this :

Processor       : ARMv6-compatible processor rev 7 (v6l) BogoMIPS        : 847.05 Features        : swp half thumb fastmult vfp edsp java tls CPU implementer : 0x41 CPU compages: 7 CPU variant     : 0x0 CPU part        : 0xb76 CPU revision    : seven Hardware        : BCM2708 Revision        : 0002 Serial          : 000000000abc0ab1

In this case I've got a PCB with a Revision code of 0002. That is a plainly quondam "Model B Revision 1.0".

For models with multiple cores (Pi 2 and Pi three) you lot will run into a cake of information per core with the Hardware/Revision/Serial numbers at the bottom.

Note : The Revision number given in cpuinfo file is the hardware revision number. This is not the same as the Raspberry Pi Rev number sometimes used to describe updated PCBs. In this example I have a Model B "Rev 1.0" with a hardware revision code of 0002.

The reading the cpuinfo file is a useful technique if yous desire to find out this information within a Python script.