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This varies per vendor per board and requires persistence in checking each one of them, however a few common ones: Disable GPU, Disable Hyperthreading, Disable Virtualization, disable any overclocking, enabling Intel SGX, etc. Having correct BIOS settings for your motherboard.MSI, it might be listed as the newest version released by the motherboard manufacturer… but it may not contain the latest MCU for the CPU. Note that when downloading a new version from e.g.

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Having an up-to-date BIOS that includes the latest MicroCode Update (MCU).During installation an Intel APT repository is added There is no good way to check its version, when In doubt … just reinstall again. You can update this at any time, but again has to be update manually at this time. To check the version you can issue ‘modinfo intel_sgx’ and look at the version indicator. (hint: you must stop the EASMd service and docker containers, then run the uninstaller). In addition, you cannot simply update it.

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Keep in mind that the Phala scripts install the latest version at the moment of installation, but does NOT (yet) update them. Intel releases new ones regularly to fix bugs and security issues. Do NOT assume that it works because someone else said so, there are no shortcuts. Note that if a (US based) build works for you, it might not work for another (e.g. You will have to invest time and money testing boards to get the build that works for you. Even then most BIOSes don’t have any BIOS options for Intel SGX, because it takes time to implement it and is not used on a large scale. For example, in my experience, MSI never provided any good support, while ASRock did epic support. Not every vendor implements this or provide support on missing features. This does not only mean the CPU, but also the motherboard. Having hardware that supports Intel SGX.There are several main criteria that need to be met: You need to know a few things about the problem and the ideal conditions for getting a level 1 miner. So you are likely reading this because you don’t have a Confidence Level 1 miner, and really really really want one. You might have to add your own wizardry! Problem explained Some vendors have special update tools which are not compatible with this guide. Based on own testing on several motherboards and vendors it looks like about 80% of the issues could be fixed by following this guide (DO NOT SKIP STEPS!).

The correct way to achieve these goals is to ask the motherboard/BIOS vendor to provide an update. Do not complain if this guide does not work. This BIOS modifications guide COULD solve some problems, but not all of them. But sharing this would improve the Phala network for everyone, so I’ve shared – if you use and extend the info here, share back! I could have kept this to myself, which would given me a nice advantage against the other miners, having one of the few Confidence Level 1 farms. I do not provide any support nor reply to PM’s. I (Kruisdraad) took a lot of time and effort into writing this, to support the community. If your modified BIOS boots it does NOT mean it is working properly, your system might behave strangely… if you notice issues, install the original BIOS while you still can! This document is just an effort to aid people with their BIOS problems who desire to take matters into their own hands. The PHALA team does not provide support on this guide, does not support the process of editing the BIOS image, and cannot provide any support if you your BIOS is bricked. You should not rush this and then slowly apply modifications and properly test it. Although some systems have a BIOS that allows recovery if a firmware update is faulty, in some cases you can throw away your motherboard (CPU, RAM, HDD, etc. BIOS MCU Hack Modīy Kruisdraad Disclaimer This document, even if well prepared, contains very dangerous changes to your systems BIOS and might brick your system.

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If you’re willing to take on the risk for yourself, feel free to read on. I cannot and will not provide support to those who use it: try at your own risk. It requires deep-level tinkering in ways that probably violate system warranties and may make your system permanently unbootable.

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It is public info which some may want to try to mod their systems. Note that this is not an official Phala team item and is not a supported procedure. The following is a guide prepared by community member I have helped clean up the English a little bit and posted it here in three parts.

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