Ok thanks for your help guys, my problem for those who dont know is that PS2 backups arnt working, but everything else is ok. My Ps2 is a v5 with a dms...
Entity mentioned that ground wrapping wire D and E would solve the problem, most likely caused by interference (assuming all soldering points were correct)
Well they wernt after getting some better magnification i noticed that pin M on the bios was ever so slihgty bridged, so after fixing that and positioning my wires better I reassembled and I had no power but unassabling and reassabling seemed to solve that and IT WORKED!!! once...yes, One time only... then red 'please insert ps2 disc' , would this confirm the interferance problem???
Also I noticed my fan is no longer going , i did squish the wire a bit stupidly when trying to fit it back in (it was late i was rushing, thats what happends i guess) I could probably trim back the fan wire, solder damaged part , insulate and it would be ok? what do you think??