I have a V5 ps2...i installed the clips, chip, and ground properly following the directions step by step, but when i first turned on the ps2 all i got was a black screen and my reset/eject buttons didn't work. So i hooked up the test board with a 9V wall power adapter and the test board about burned my house down!! So i then tried to start the ps2 again and i get nothing....the reset red light comes on but it wont function and the fan doesn't come one any more.
I said well shit i fried my ps2 so i got my friends ps2 and installed everything the same way and i still only get a black screen but the reset/eject buttons work fine and the fan comes on.
Do you think i got a bad chip or maybe the test board fried it? I have tried holding L1 and square (i read from the forums) to try and disable the chip but i still get nothing! I am so frustrated because it took 2 weeks to get here i damnit i want to play it!
I have also dled ToxicBIOS, burned the image with NERO to a CD-R, to see if the PS2 would load it but yea, i still get the dang black screen.
So as of now i have a functioning ps2 with the mod chip and a black screen.
99% of mod chip failures are due to installer error. This isn't a slam against you, it's just fact. I have modded many consoles in my time and have been guilty of rushing the install or missing something to where the chip would not function properly.
This is what I would do:
Completely remov the EZI chip and all wiring. Start from scratch and do everything over. BECAREFUL!!! The EZI clips that hold the connector aren't the most durable. When you place them over the bios and Sony BGA chips, make sure you have it centered and press straight down to engage the clips. The ribbon wire cables are a little confusing if you have never done one before. Look inside each ribbon "receiver" and make sure you insert the cable correctly. If you are getting a black screen, this cable/connector is usually the culprit. The black screen means the console isn't receiving the signal to boot from the bios chip.
Again, I can't stress enough the importance of taking your time with this mod. If you break a connector clip you're pretty well screwed unless you have better than average soldering skills.
I'm not sure what you did to blow the test board up, but if you take your time and be extremely careful, you should be ok.
If you have anymore questions, feel free to hit me up on Windows Live Messenger "stabby209@msn.com" or Yahoo Messenger "stabby209@yahoo.com"