PS2 Neo 4 help!

[Ground-Xero]

Here's my situation. I had puchased a PS2 knowing i would chip it and bought the 15 dollar inshurance on it. Then i ordered the Neo 4. right before i got the Neo 4 my machine got screwed up or somin... so i just exchanged it. Got the Neo 4 and about to chip it when i see the serial says U5******. i searched a bit lookin for diagrams and found nothing but saying the SCPH-3001-R doenst support Neo 4. Now here is where my question is, mine says SCPH-3001 (no R) but has a U5***** serial #. Can i chip this and if so where can i get diagrams???

Thanks...