Hello,
Sorry to hear you are experiencing test failures on your PC.
To begin, you are correct this test is based on the CPU and the test verifies that the CPU supports special Multimedia functions. The test results will log any detected errors in the CPU. I recommend providing your test logs and it will contain information for the failed commands that caused this test to fail.
Please let me know if you have any other questions.
Regards,
Meliton P.