These are the two sets of pins to which we are going to add capacitors.
back of RAMBo with arrows to pins where the caps go
3 Make flux puddle
Make a little puddle of flux in a small container
Depress the tip of the flux pen to dispense flux
4 Dip cap in flux
Dip the cap to be added to the pins into the flux
5 Clean tip
Clean the tip of your iron by rubbing it on a wet sponge. You can optionally dip it in the tip tinner at this point too.
6 Solder left pin
Hold the cap with your tweezers and flow the solder onto one end of the capacitor
7 Solder right pin
Hold the cap in place with the tweezers and flow the solder onto the left side of the capacitor.
8 Dip swab in alcohol
Get plenty of alcohol on the swab
9 Clean area
Clean all the flux residue. Add more alcohol as needed.
10 Blow dry the area
Blow away the alcohol with canned air
Blow dry it
11 Dip another cap in flux
Dip another cap in the flux you dispensed earlier. Add flux as needed.
12 Clean tip again
Clean any oxidation and/or flux residue off the tip of the iron. Optionally, you can dip the tip in tinner.
Clean it again
13 Solder left pin
Hold the cap with tweezers, and flow the solder with the iron tip.
14 Solder right pin
Flow solder to make the joint.
15 Clean area
With the cotton swab from earlier, clean the flux residue off the board. Use more alcohol and a fresh swab as needed.
16 Blow dry
Use the canned air to blow dry the area.
The picture shows what it should look like before drying. After drying, it looks very similar -- only dry.
Before blowing dry
17 Pro tip
If you are really good, you can flow both pads of solder at the same time and then drop the flux'd up capacitor onto the pads and make both joints at once. This is good because it is faster, cleaner, and just plain cool. Try it out.