What is CMOS configuration?
What is CMOS? Complementary metal-oxide-semiconductor (CMOS) is a small amount of memory on a computer motherboard that stores the Basic Input/Output System (BIOS) settings. The BIOS is the software stored on the memory chip on the motherboard.
How do I configure CMOS?
To enter the CMOS Setup, you must press a certain key or combination of keys during the initial startup sequence. Most systems use “Esc,” “Del,” “F1,” “F2,” “Ctrl-Esc” or “Ctrl-Alt-Esc” to enter setup. There is usually a line of text at the bottom of the display that tells you “Press ___ to Enter Setup.”
What is advanced chipset features?
This menu is used for memory functions settings. Such settings should be implemented cautiously since they can affect the stability of the whole system.
What are the BIOS settings?
E. 2 BIOS Setup Screens Overview
| Screen | Description |
|---|---|
| Advanced | Configuration information for the CPU, memory, IDE, Super IO, trusted computing, USB, PCI, MPS and other information. |
| PCI | Configure the server to clear NVRAM during system boot. |
| Boot | Configure the boot device priority (storage drives and the DVD-ROM drive). |
How do I find my CMOS settings?
Below is a listing of key sequences to press as the computer is booting to enter the BIOS setup.
- Ctrl+Alt+Esc.
- Ctrl+Alt+Ins.
- Ctrl+Alt+Enter.
- Ctrl+Alt+S.
- Page Up key.
- Page Down key.
Why is my CMOS settings wrong?
If the computer has problems booting, errors during boot, or other abnormal problems that cannot be resolved, try resetting the CMOS settings to the default settings as explained below. If you’re seeing an error about a “media test failure,” there may be a loose cable inside the computer or the hard drive might be bad.
What is BIOS setup mode?
Setup mode enables you to enter new Secure Boot variables. You shouldn’t run perpetually in Setup mode. You might be able to get away with it, but it’s not what you’re supposed to do, so running that way in the long term is poorly-tested at best.
Which holds the BIOS and CMOS settings?
BIOS is stored in the BIOS chip. It has the initial programs that run every time the computer starts. On the other hand, the BIOS settings are stored in a separate chip called the CMOS. In modern motherboards, the CMOS chip is integrated with Real Time Clock (RTC) on the south bridge chipset.
What is a CMOS reset?
Clearing the CMOS resets your BIOS or UEFI settings back to their factory default state. In most cases, you can clear the CMOS from within the BIOS menu or by pressing the CMOS button on the back. In some cases, you may have to open your computer’s case.
What is BIOS default settings?
What Happens When You Load Setup Defaults? Your BIOS also contains a Load Setup Defaults or Load Optimized Defaults option. This option resets your BIOS to its factory-default settings, loading default settings optimized for your hardware.
How do I check my CMOS settings?
How to Access the CMOS Setup Program
- Press “Windows-C” to display the Charms menu.
- Click the “Settings” icon to open the Settings menu.
- Click the “Change PC Settings” link at the bottom of the menu.
- Click the “General” option in the left navigation panel, and then click the “Restart Now” button in the right panel.
What are two settings that can be modified in the BIOS?
The BIOS setup program is used to change settings if memory modules, storage devices, and adaptor cards are added. Most manufacturers provide the ability to modify boot device options, security and power settings, and adjustments for voltage and clock settings.
Where are CMOS settings stored?
The BIOS settings are stored in the CMOS chip (which is kept powered up via the battery on the motherboard). That is why the BIOS is reset when you remove the battery and re-attach it.