TPM 2.0 on a Z440

The only method to update the TPM chip to support v2.0 is to downgrade the Z440 BIOS to v2.54, then update the TPM, then restore the BIOS to v2.61. This sounds simple, but is very risky - use at your own discretion.

1. Downgrade the BIOS to v2.54 ► sp104013.exe
2. Update the TPM firmware to v2.0 ► sp87753.exe
3. Upgrade the BIOS back to v2.61 ► sp146166.exe