Not booting up properly?

I had liquid water damage on my MBP 15" unibody late 2008. I took it to Apple and as we all know its not covered. I ordered the correct motherboard and replaced it. Now when I go to turn it on it doesn't regularly turn on meaning I have to press the power button 30 times to get it to turn on once. I have reset PRAM and SRAM holding power button without battery and all the normal trouble shooting. When it finally does turn on the fans are on super high and the hard drive turns on but nothing else, nothing on the screen turns on. I don't have an external connector to check if it shows anything in an external display but I am going to check it out now and will update with what happens. It also does not charge the battery anymore. Any ideas would be great and helpful. Thanks