PHD - 16 DIAG CARD RESULTS of my 10 mhz xt clone mobo DMA page register test 1 1 Data bits high fail Port b and system signals test 9 1 Refresh bit toggle fail 4 Refresh signal test fail 5 Address enable(AEN)test fail 6 system bus high enable fail SBHE part of a chip i cannot remember DMA transfers test B 3 DMA Channel 0 fail 12 means 1 Error during transfer RAM to i/o (1st transfer) 2 Port lost value during transfer from port