how to clear cmos asus z790

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

ASUS

asus.com › me-en › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ASUS

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

Discussions

How to Clear CMOS on Motherboard - ROG Forum - ASUS

To utilize this technique, ensure that your motherboard has a dedicated Clear CMOS button or reset button on its rear or on the front panel. If it does, follow these steps: Shut down your computer. Unplug all cables from the back of the PC, including power. Locate the Reset button on your ... More on rog-forum.asus.com

rog-forum.asus.com

May 14, 2023

How would I reset cmos on my ASUS motherboard

there should be a jumper on the motherboard which can be set > power on > set the jumper back > power on. the motherboard manual will tell you where the bios clear jumper is

edit: makesure you power off the machine before changing the jumper

or easiest and lazy way would be to remove the power form the machine then remove the CMOS (silver coin) battery. press the power button, the fans will probably spin for a second, this should clear your bios.

reconnect the battery and power and power on as normal and make any changes you need to your bios

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ASUS

asus.com › ca-en › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ASUS Canada

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

ASUS

zentalk.asus.com › t5 › faq › motherboard-how-to-clear-cmos › ta-p › 407728

[Motherboard] How to Clear CMOS - ASUS - ZenTalk - 407728

October 7, 2025 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS ...

Asus

servers.asus.com › support › faq › detail › 1040820

Motherboard: How to Clear CMOS

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

ASUS

asus.com › au › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ASUS Australia

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

ASUS

asus.com › ch-en › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ASUS Switzerland

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

ASUS

asus.com › support › faq › 1030210

[Motherboard/Desktop] How to restore BIOS setting? | Official Support | ASUS Global

April 7, 2026 - 1. Use the motherboard to clear the BIOS settings, depending on the motherboard, there will be the following methods: a. CLRTC two-pin type, please turn off the power and unplug the power cord, touch the two pins with a metal object, such as a screwdriver, for about 5-10 seconds.

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Asus

rog-forum.asus.com › t5 › motherboard-accessories › how-to-clear-cmos-on-motherboard › td-p › 929143

How to Clear CMOS on Motherboard - ROG Forum - ASUS

May 14, 2023 - To utilize this technique, ensure that your motherboard has a dedicated Clear CMOS button or reset button on its rear or on the front panel. If it does, follow these steps: Shut down your computer. Unplug all cables from the back of the PC, including power. Locate the Reset button on your motherboar...

ASUS

asus.com › gr › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ASUS Greece

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

ASUS

asus.com › sg › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ASUS Singapore

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

ASUS

asus.com › nz › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ASUS New Zealand

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

reddit.com › r/techsupport › how would i reset cmos on my asus motherboard

r/techsupport on Reddit: How would I reset cmos on my ASUS motherboard

June 21, 2019 -

I may have messed up graphics card settings on bios and I have know clue how or where I need to look to reset cmos please help Edit 1: it wasn’t the settings my graphics card wasn’t in completely but my battery was behind my GPU so if you have an ASUS motherboard make sure to take out your gpu and check under it

Top answer

1 of 5

3

there should be a jumper on the motherboard which can be set > power on > set the jumper back > power on. the motherboard manual will tell you where the bios clear jumper is

edit: makesure you power off the machine before changing the jumper

or easiest and lazy way would be to remove the power form the machine then remove the CMOS (silver coin) battery. press the power button, the fans will probably spin for a second, this should clear your bios.

reconnect the battery and power and power on as normal and make any changes you need to your bios

2 of 5

1

Sorry for the lack of information I have no clue what the model of my motherboard is

Asus

rog.asus.com › za › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ROG South Africa

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS ...

ASUS

asus.com › in › support › faq › 1040820

[Motherboard] How to Clear CMOS | Official Support | ASUS India

March 24, 2026 - Press the MB Clear CMOS or CLR_CMOS button for about 5~10 seconds, at this time that is to clear the real-time clock (RTC) random access memory. You can refer to below example about the Clear CMOS or CLR_CMOS button: (Example MB: ROG MAXIMUS Z790 APEX or Z790-AYW OC WIFI )

reddit.com › r/pcmasterrace › [help] asus z790-p wifi motherboard boots on cmos clear only

r/pcmasterrace on Reddit: [HELP] ASUS Z790-P WIFI Motherboard boots on CMOS clear only

August 21, 2024 -

I recently bought the ASUS Z790 WIFI motherboard. At first it worked well. After a few days a graceful shut down took place without my intervention. The next thing, the PC would not boot. Every time I drain the power and switch on the PSU it lights up for a second and then turn off immediately. I have two different power supplies, one 600W and the other 850W, but the behaviour is the same for both.

* I have removed the CMOS battery with no results

* I have reseated RAM

* I made sure that ATX power is locked in properly

* I have tested the motherboard with "all" possible peripheral configurations

The only thing that boots the system normally is connecting the Power BTN header while the PSU is on, remove the power BTN header and then clear CMOS with a screw driver which automatically starts the pc gracefully with all devices installed.

The +/- poles of the power BTN header are as per the booklet. Never seen this before...