3 dram ras# to cas# delay, 4 dram ras# precharge, 5 precharge delay (t ras) – Advantech PCE-5120 User Manual
Page 53: 6 system memory frequency, 7 system bios cacheable, 8 video bios cacheable, 9 memory hole at 15m-16m, Dram ras# to cas# delay, Dram ras# precharge, Precharge delay (t ras)