What's Best Chip for V3 ps2

[akid21]

I really wanted to install the Magic 2 chip, cuz it boots everything directly, but I like to use gameshark and I've been reading that this chip is not really friendly with gameshark.
So any suggestions?

Also I saw this on a website- http://www.ps2modchip.com/playstation2.php -

"PS2 Magic 3 Modchip No-Swap Modchip V3 for Scph-30001 Bio 020 , Scph-30002 & Scph-30004 (USA/PAL)"

I got a v3 Scph-30001 ps2, but I don't know what the hell "Bio 020" means. Can anyone tell me if this chip would be compatible with any v3 ps2. Thanks