Good suggestion, Rewben. I found it in the BIOS (press F2 on startup). It is located under the Advanced tab --> Trusted Computing. Then, toggle Security Device Support to "Enabled", save/quit BIOS, and then TPM would appear in Device Manager.
Interestingly, when Security Device Support is "Disabled", there is no mention of TPM. But when it is "Enabled" then it shows some options about TPM.