I just fixed a compaq desktop today that just "died" no post.

Reflowed the nForce chipset and she booted right up again.

all it takes for the barebones method, is a regular heatgun with attachments, Chicago Tools/Harbor Freight brand is good.

Put it on low, and let her rip. but you HAVE to watch the board. if it starts to bow, back away. thats why its important to pre-heat. but if you dont pre-heat you have to pay attention to thermal shock.

Once you leave it heat for a few minutes without seriously bowing the board, remove heat. let cool down, and give her a shot. Sometimes all ti takes is a small amount of heat to reconnect broken solder connections.