If it has lights around the Ethernet port, yes.
Originally Posted by zerowalker
What is the model of your network adaptor, and did you use a crossover cable when you connected it to your PC? It will only show connectivity if a program on the PS2 has initialized and brought up the network interface (E.g. games or uLaunchELF).
Unmodified SCPH-77006 with SM 3.6
SCPH-39006 with M-chip modchip, SCPH-10281 NA and refurb Seagate 80GB HDD
SCPH-10000 v1.00 with SCPH-10190 PCMCIA NA and SCPH-20400 HDD unit