Just replaced the laser in my PS2 and it looks like it's the magic 2's fault that DVD backups will no longer boot. I can clearly hear the laser spin up after beginning to read the disc, and it starts to load but it abruptly stops and gives me a RSOD. CD backups work fine. I've checked the solder points by eye, nothing loose. I guess I'll have to check with a multimeter? Or is it possible I need a new chip?