I tried the YLOD kit and after one time the PS3 started up and in about 5 seconds the fan got really loud before the PS3 shutdown. This didn't happen before. What does this mean? Should I try again?
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kenshinnonaka3, the reason why you fans are turning full blast is because of the temperature sensor. About the YLOD repair, here is my answer to a similar question. First you do need to remember that this will only work if your YLOD is caused by solder fractures and if they are not to extreme. Reflowing any board with a heatgun is not an exact science and as such does have a certain amount of failure. The proper fix for this would most likely be a professional reball. Anyhow, the biggest reason for failure to reflow is not enough consistent heat. There is a fine line between reflowing and absolutely melting the solder, so one needs to be aggressive without going over board. If nothing else, get a couple of temperature probes and see what heat you generate. You also need to make sure that you apply the thermal paste properly etc. Follow the guide from here and keep on trying. If at first you don't succeed....:). Hope this helps, good luck.
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One other thing to keep in mind is those wonderful pressure plates to press the cpu and gpu to the heat sink. It is not the norm but it might be that they are worn and not applying enough pressure to have good contact between the cpu and gpu and the heat sink. If you pull the ps3 apart again and there are area's of the heatsink that dont have thermal paste on it from the cpu or gpu then for one reason or another the pressure plates are not putting enough pressure on them to make good contact. One of the ps3's i have been working on i noticed there are 2 different sets of screws for the cpu and gpu so pay attention on those also.
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