Powerbook 170 issue

[Papichulo]

I got a powerbook 170. The battery was so bad i had to open the computer to remove. The computer booted with sad mac chimes. I removed the ram card but had the same result. After 5 seconds the screen will flash like its trying to reset or something. What's wrong? No corrosion on the boards i just cleaned. Thanks

 

[Papichulo]

I just cleaned the boards and no more screen flashing but i keep getting the sad mac chime with the checkerboard screen. Why is it doing this even with the ram removed?

 

[elbaroni]

Does it give you a code on the screen (assuming there's anything legible on the screen)?

 

[Papichulo]

I ended up swapping the logic board for new one and it works great now. Theres yellow ram chips or something on the old board does that mean it was upgraded?