i ***may**have some video ram..
also, iirc, i have a tested working pcb.. it was for the earlier 6000,(no credit board, single bull darthead) got it with a lot of parts, tested good(*this was a few years ago) one chip has a small chunk missing out of it but again it did work. FYI arachnid is now bullshooter and thier parts/service is pathetic as its basically a different company now that assumed the original- if that makes sense.
recheck your voltages heh.. also pull the board off the power supply and go through all the solder connections. Strengthen the traces going to the bridge rectifier.. actually escrape away the trace mask, tin with solder, add in a small piece of desoldering braid ro wire. You will thank me later... check for ac ripple across the big blue while powered up. that can cause issues too(goes bad, then too much ac and/or noise in the dc output)