Everything related to your entry comes up in the system. I arrive an hour ago and did not need to show my TDAC. When asked if she needed it, she said no, she sees in the system.
Also the immigation officers have the final say regarding entry, with or without a visa.
which is perfect for a year Visa. Thailand does not based there rules on the limitations of other countries. If you are in country with only a five year visa, my guess is to renew and apply ASAP.