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tpm 2.0 problem

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expired1111 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote expired1111 Quote  Post ReplyReply Direct Link To This Post Topic: tpm 2.0 problem
    Posted: 25 Oct 2021 at 11:48pm
Hello, I wanted to upgrade to win11, turned on fTPM in BIOS and installed win11, but ran into an unpleasant problem, my PC freezes for 0.5-1sec and there is a crackling sound in my headphones, if I turn off fTPM it disappears. Tell me what can be done and have you observed this?
My motherboard is Asrock b450m - hdv, the latest BIOS, namely 4.40, has now set 3.10, so far, there seems to be no such problem, but if there is, I will write this topic.
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expired1111 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote expired1111 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Oct 2021 at 5:03am
Okay, the problems still remained, although the PC stopped turning on at all, pulled out 1 ssd, everything was fine, turned on fTPM back, again micro firms with a bang, who has encountered this? How then to upgrade to Windows 11, if there is such a problem?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote foxx1337 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2022 at 7:34pm
Can confirm, happens on other boards as well. I have ordered the ASRock TPM 2.0 extension board and will test it as a workaround. I have also written both ASRock and AMD, which I encourage you to do as well.

What you're seeing is an extreme case of the problem - it happens more rarely. The real problem is elevated Deferred Procedure Call (DPC) latency and you can see it with thesycon's DPC Latency Checker - https://www.softpedia.com/get/System/System-Info/DPC-Latency-Checker.shtml

For example:


The computer was mostly idle at the time of that pic. Those red spikes shouldn't be there (and they're not if I turn off the fTPM).
Ryzen 3900X, Taichi X570
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