Need tips repairing PSU

[grandpatzer]

Recently I replaced fan in the PSU, The fan molex pressed the green pcb card and made it move.
My suspicion is either soldering got loose on powerplug or a component on that green PCB got damaged.

I have a soldering Iron + multimeter, I'm going to disassemble the PSU.

Now I need suggestions what to look for, can I make some multimeter measurements to figure out if a soldering is broken or some component on that PCB card?
From wall using the Black/Green power on Trick I get following:
Power OFF: 0.0watt, Power ON: around 0.6 - 0.7 watt, I live in Sweden and we have 230volt system here.

If a component is damaged my guess would be it's one of the ones on top right corner on this picture, this image is from jonnyguru review of this PSU:

These 2 images are on my PSU and show the molex fan.

 

[PottedMeat]

i'd check for cracked solder joints all over the small board, but especially near that upper right corner and at the base where it connects to the main pcb.

 

[bryanl]

Resolder the pins for the fan connector and the pins that attach the small PCB to the large PCB (resolder at both PCBs)