just thought i d contribute here. finally got my aca1230@56 a1200 setup running. after going through like 3 motherboards (each having different unrelated faults) i finally found a motherboard that is fully compatible with this thing. i think i had a little of cammys problems with the socket being a tad higher but managed to wedge the thing into the accelerator socket. and the graphical issues i had with my older motherboard is exactly like the one ndial posted. well i ve tested this thing for half an hour or so playing doom and a couple of whd games. but i might have a longer session on it to fully test it. hopefully i ve cracked it though! need to update my acatune!