Are you trying to unlock these settings for a , like installing a new OS or fixing a performance issue?
. Rev 3.5 is a widely used iteration of this UEFI/BIOS firmware. To the frustration of many power users, entering this BIOS usually reveals a very bare-bones interface with standard tabs like Main, Security, Boot, and Exit Win-Raid Forum The highly coveted
tabs—which contain settings for overclocking, fan curves, virtualization, and video memory (VRAM) allocation—are almost always hidden by the manufacturer. Win-Raid Forum 🛑 Why Manufacturers Hide the Advanced Menu
Turn on the computer and press (or F10 for HP) to enter the setup utility. Navigate to the Main tab. Press Fn + Tab exactly three times in quick succession. insydeh20 setup utility rev 3.5 advanced options
AHCI (Advanced Host Controller Interface): The standard mode for regular SATA SSDs and HDDs.
Repeatedly tap the key. The utility will launch with the Advanced tab revealed. Method 2: The BIOS Key Combo (HP & Lenovo) Turn off the device.
Reduces the amount of power sent to the CPU. Lowering this value by small increments (e.g., -50mV to -100mV) can dramatically lower laptop temperatures and eliminate thermal throttling without losing performance. Are you trying to unlock these settings for
If you want, I can produce:
Some Rev 3.5 menus expose settings. "Undervolting" is a popular tweak for thin laptops to reduce heat and thermal throttling without losing performance. Caution: Changing these values by even 0.1V can cause system instability. Why Is This Menu So Hard to Find?
Sets the permanent amount of system RAM dedicated to the integrated graphics chip. If you experience errors launching certain games or creative apps, increasing this to 64MB or 128MB can resolve the issue. Graphics Device / Switchable Graphics: To the frustration of many power users, entering
is a popular UEFI BIOS firmware used in many laptops, particularly from Acer, HP, Lenovo, Dell, and various OEM systems. Revision 3.5 is a common version found on systems with Intel 2nd to 7th generation Core processors (roughly 2011–2018).
Use the F9 key to load setup defaults and F10 to save and exit, which often fixes issues caused by improper configuration.
While there is no universal key for every laptop model, the most common "secret" sequence to unlock hidden menus in Rev 3.5 is: Turn off your computer.
Note: Proceed with caution. Modifying these settings can brick your device if you aren't sure what you're doing. Key Advanced Options Explained
If the screen remains black and keyboard commands do not work, you must clear the physical CMOS memory.