Black Lines on Performa 400

[Octolingual]

What are these black lines that show up on my Performa 400?? I suspect it has to do with the VRAM, but idk if the module itself is bad, or the traces, or if it’s even the VRAM at all. Anyone have any ideas?

 

[Byrd]

VRAM! Any chance you've another module from another Mac to test?

 

[Octolingual]

VRAM! Any chance you've another module from another Mac to test?

Unfortunately no. I wish I did.

 

[Forrest]

Remove the red battery before it explodes. I’m fairly sure the computer will work fine without a battery.

 

[bobcat]

Remove the VRAM SIMM and see if it still has the problem. There is also VRAM on the board, so you don't need it.

 

[cheesestraws]

Remove the VRAM SIMM and see if it still has the problem. There is also VRAM on the board, so you don't need it.

Isn't the Performa 400 an LC II in disguise? If so, it does not have onboard VRAM: it came with a 256k VRAM SIMM, which could be upgraded to a 512k one. You might be thinking about the original LC, which could do monochrome without any extra VRAM.