v4 PS2 won't start up

[zelos]

I got a V4 No-Gap PS2 and yesterday I installed a Magic 3.1 in it. It wouldn't run any cds/dvds the first time but would come on only the graphics in the main menu wouldn't move the ball was centered so I opened it again and found that a few wires had popped of the point. I resoldered everything and tried it again still same problem so today I desoldered the modchip and shortened some cables and checked to make sure each cable was right with a multimeter and everything seemed to be fine but after putting it back together this time there's no video at all. The main thing that wasn't working correctly in it each time was the laser when I put in a cd/dvd original or backup instead of making the loading sound that usually happens at first it would make a clicking sound. Anyone have any ideas on what's going on?