Hardware Reference
In-Depth Information
them to easily upgrade the amount of on-board memory on the Model B from 256
MiB to 512 MiB (all Model B units sold after October 15, 2012 have the larger amount).
How to Tell Which Pi You Have
If you have a Pi that's been sitting around for a while, and you're not sure
which one it is, you can use
cat /proc/cpuinfo
to find out. The results look
like this:
Processor : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS : 795.44
Features : swp half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xb76
CPU revision : 7
Hardware : BCM2708
Revision : 000e
Serial : 0000000011185abc
The part after
Revision
tells you which board you have. Refer to this table:
Revision code
Model
Rev number
RAM (MB)
0002
B
1.0
256
0003
B
1
256
0004
B
2
256
0005
B
2
256
0006
B
2
256
0007
A
2
256
0008
A
2
256
0009
A
2
256
000d
B
2
512
000e
B
2
512
000f
B
2
512
This significantly improved the performance of the Raspberry Pi. Unfortunately, mak-
ing a change to the amount of memory is a decision that can really be made only at
