Insydeh20 Setup Utility Rev 35 Advanced Options Verified Online

| Option Name | Verified Settings | Note | |-------------|------------------|------| | SATA Mode Selection | AHCI / Intel RST Premium | RST required for Optane. AHCI for Linux or non-RAID. | | Software Guard Extensions (SGX) | Enabled / Disabled / Software Controlled | Intel SGX. "Software Controlled" allows OS to enable. Known to cause sleep/wake issues on some OEM builds. | | Thunderbolt Security | No Security / User Authorization / Secure Connect | User Authorization is the default for hot-plug safety. No Security enables TB3 DMA attacks. | | Wake on LAN from S5 | Disabled / Boot to LAN / Ignore Wake | Verified option in Rev 35: "Ignore Wake" prevents WoL from fully booting (only wakes to UEFI). |

Do not touch this unless you have liquid metal and a prayer.

Once you bypass the lock (using tools like RU.EFI or setup_var.efi), here are the verified menus found in Rev 35 on Intel 8th, 9th, and 10th Gen mobile platforms. insydeh20 setup utility rev 35 advanced options verified

This menu controls the integrated memory controller and iGPU.

  • DVMT Pre-Allocated (Dynamic Video Memory)
  • Above 4G Decoding (for eGPUs only)
  • RC6 (Render Standby)

    • Since Rev 35 often locks voltage control, use this workaround: | Option Name | Verified Settings | Note

    The transition from legacy BIOS to UEFI (Unified Extensible Firmware Interface) brought enhanced security, faster boot times, and more granular hardware control. Insyde Software’s InsydeH20 is one of the “big three” UEFI firmware solutions (alongside AMI and Phoenix). Revision 35 is widely deployed in Intel 6th to 10th generation Core platforms (Skylake through Comet Lake) and corresponding AMD Ryzen mobile series.

    A common frustration among power users and system administrators is that OEMs (Dell, HP, Acer, Lenovo, Xiaomi, etc.) often hide or disable critical advanced options. However, in verified full-access versions of Rev 35 (e.g., reference implementations or engineering samples), the Advanced tab contains numerous performance, power, and security toggles. This paper catalogs those options. DVMT Pre-Allocated (Dynamic Video Memory)

    You cannot flash a modified BIOS on Rev 35 without a hardware SPI programmer (like CH341A). The firmware includes Boot Guard and Intel ME verification. If you attempt to flash an unsigned BIOS, the laptop will become a permanent brick.

    Insyde Software is a major provider of UEFI firmware. Their "H2O" product line (a play on the chemical formula for water, derived from the 'H' in Insyde and '2O' referring to two 'O's in the boot process logic) is the most common firmware shell found in modern consumer laptops.

    Revision 3.5 is a specific iteration of this codebase. It is a 64-bit UEFI environment that has become an industry standard. It manages:

    For the average user, the default view of InsydeH20 is designed to be "safe." It prevents accidental changes that could brick the laptop.