Time to upgrade your Trainz drives to SSDs, John! These are absolutely the best single performance upgrade possible for any build of Trainz (after ensuring that your GPU & VRAM combo is adequate for running Trainz, which in your case, is more than sufficient). They are amazingly affordable these dayz, and can be purchased in 4TB and 8Tb sizes to further increase performance per watt and reduce cost per megabyte. MTBF in reputable solid state PCIe NMVE brands typically exceeds that of 'ol spinning rust drives by wide margins.