I read somewhere that some SNROM boards (Shinren the ruler was the example i think) behaved strangly with NTRQ. I've built 6 NTRQ carts to date and all have worked without issue aside from dirty contacts requiring a lil jiggling in the slot to get a proper connection. I guess it's possible the SRAM has junk data which is messing up on load, you could try pulling the battery and waiting for the chip to drain. Are you using a 27C010? If you're using a 27C101 the pinout is slightly different, I believe you have to bridge pins 31 and 32 in order for those to work properly but don't quote me on that.
for reference here's this pcb:
pin 31 is lifted but not attached, should've just clipped it
Last edited by derekb (Aug 20, 2012 5:37 pm)