Super Famicom, VRAM Low Fail, changed one, but...

[Jiimboo]

Hi!

I've a SFC some years with me, and now I bought the Burn in test cart, and it says:



A friend of mine, looking the diagram, says me that it can be one of the VRAM and I tried to change with a 2 donor and didn't work, and now I bought some new RAM, same model, and same error...




Any help, please?

Thanks!

[jd213]

Might be one of the other chips, or maybe a bad trace or cap or something. IIRC a fail on the Burn-in cart can sometimes indicate a problem that isn't as obvious as it would have you believe.

You might need to start switching chips between boards to determine which ones are good.

[Sumez]

what exactly does "low VRAM" actually mean? That there are addresses that can't be properly accessed?