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RPi Easy SD Card Setup - eLinux.org

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The GPIO pins connect directly into the core of the ARM processer, and are staticsensitive,<br />

so you should avoid touching the pins wherever possible. If you are carrying a<br />

static charge, for example by taking off an acrylic pullover, or walking across a nylon<br />

carpet, touching the GPIO pins could destroy your R-Pi, so always earth yourself before<br />

touching the pins or anything connected to them.<br />

General<br />

The time is incorrect<br />

If the clock is off by a series of hours, in the command line type:<br />

sudo dpkg-reconfigure tzdata<br />

The R-Pi has no real-time clock, so unless it can access a timeserver over the network at<br />

boot, or time is manually entered by the user, the time/date will restart counting from the<br />

last logged time in the previous session.<br />

A part broke off<br />

The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on<br />

schematic). It sticks up and due to the small surface-mount pads, it is easy to break off;<br />

several people have done so. This is a power supply filter capacitor which reduces any<br />

noise and spikes on the input +5V power. If you like, you can solder it back on, or just<br />

leave it off. If you do solder it back on, take care to observe the correct polarity with the<br />

black stripe towards the board edge. This part, C6 is a "just in case" component which is<br />

good design practice to include, but as it turns out (http://www.raspberrypi.<strong>org</strong>/phpBB3/<br />

viewtopic.php?f=2&t=4926%7C) most power supplies still work OK without this part<br />

installed. This part is also discussed here (http://elinux.<strong>org</strong>/<br />

<strong>RPi</strong>_Hardware#Capacitor_C6) .<br />

Unable to install new software<br />

When trying to install a software package (using the command sudo apt-get install xxxx)<br />

you may see the error<br />

Package yyyy is not available<br />

This means that your software list is out of date. Before attempting to install software,<br />

you should always make sure that you are using the latest software list by using the<br />

command

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