Either get the Magic 2 or get a Apple chip, or you could try the new Matrix 2 chip..... There is NO MAGIC 3.... They also talk about a Magic 3 Messiah...... (which doesn't exist either...)
This came directly from the Magic 2 website:We have noticed some rather peculiar marketing methods of resellers of the magic2 modchip. Many name changes and false functionality of the magic2. We have heard of magic3, Blue magic2 and just now we have heard Magic2 V5. This has only starting mass confusion with customers that is very unecessary, if you are a reseller of magic2 modchips we encourage you to stay as close to the lineup we have as possible.
You will have to open up your PS2 to determine what type of bios it has....