It means the firmware TPM is active in the BIOS and working.
Well before this it would show AA or 30. Which basically can be read to mean a successful hand off to OS or wake up.
If you don't like it, can turn it off (some motherboards) or on ours, put it on AUTO and it will display temperature of CPU once sucessfully moves through boot codes.
The Q codes only matter is gets stuck, stops or reboots with one displaying otherwise they really dont have much meaning.