the HP z820 uses a infineon SLB9635 chip soldered directly onto the motherboard for TPM 1.2, this chip is not TPM 2.0 compatible and is no longer in production
https://www.digikey.com/htmldatasheets/p…duct-brief.html
it was superseded/replaced by the SLB 9660 which is pin compatible with the SLB 9665
can a SLB 9665 TPM 1.2/2.0 chip be used to replace the existing 9635 chip? would the existing bios code recognize the new chip if placed on a z820 motherboard?