it's the two on the left in that top grouping of four (2 for clrtc, 2 for chassis) you short them is there some reason you're trying to clear the cmos? or is it just a mobo with a cmos reset button on the rear io or something Answer from whomad1215 on reddit.com
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ASUS
asus.com › support › faq › 1040820
[Motherboard] How to Clear CMOS | Official Support | ASUS Global
[Motherboard] How to install DRAM(Memory) on Motherboard? ... Clear CMOS clears the Real Time Clock (RTC) random access memory in CMOS, which contains the date, time, BIOS password and BIOS setup parameters. Currently there are 3 ways to clear CMOS as follows: 1: Clear CMOS button 2: CLRTC ...
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Velocity Micro
velocitymicro.com › SupportArticles › Article_619.php
PC Support | Velocity Micro
All motherboards have small groups of pins sticking out called jumpers that serve various functions. There is a special pair of jumpers that are dedicated to clearing the CMOS by connecting the two with a screwdriver. On most boards it will be labeled “CLRTC” or “clear real time clock”, ...
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Visioncomputers
visioncomputers.com › asus-clear-cmos-3-ways
3 Ways to Clear CMOS on ASUS Motherboards (Pins, Button, Battery) | Vision Computers
March 22, 2026 - 5865 Jimmy Carter Blvd, Suite 125,, Address2, Norcross, GA, U.S.A. 30071 · 770-840-0015 support@visioncomputers.com
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bit-tech.net
forums.bit-tech.net › index.php
how does CLRTC/CMOS reset jumper work?
August 16, 2020 - bit-tech.net's discussion forum. Dedicated to pc case mods, computer hardware, overclocking and gaming.
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Asus
asus.com › us › support › faq › 1040820
[Motherboard] How to Clear CMOS | Official Support | ASUS USA
[Motherboard] How to install DRAM(Memory) on Motherboard? ... Clear CMOS clears the Real Time Clock (RTC) random access memory in CMOS, which contains the date, time, BIOS password and BIOS setup parameters. Currently there are 3 ways to clear CMOS as follows: 1: Clear CMOS button 2: CLRTC ...
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Reddit
reddit.com › r/buildapc › how to clear cmos?
r/buildapc on Reddit: How to clear CMOS?
May 1, 2021 -

I while trying to upgrade RAM in this prebuilt computer ( https://www.bestbuy.com/site/asus-rog-gaming-desktop-intel-core-i7-9700k-16gb-memory-nvidia-geforce-rtx-2080-super-2tb-hdd-512gb-ssd-black/6401068.p?skuId=6401068 ) I changed the XMP profile and now the computer won’t POST at all. I’ve read about this issue with other PCs and it seems the solution is to clear the CMOS. However, there is no manual that came with this motherboard and I’m trying to find out how to do this properly.

Edit: there was a CLRTC pin that we were able to use to reset the CMOS. Thank you all for your quick suggestions.

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PCPartPicker
pcpartpicker.com › forums › topic › 390591-question-on-what-pressing-the-cmos-button-actually-does
Question on what pressing the CMOS button actually does. - PCPartPicker
c. On the motherboard, using the (CLRTC) jumper · This is an alternative to the battery. Behaves differently in some boards. d. On the motherboard, reseating (not a typo, for non-english speakers) the CMOS battery · Most common way to reset CMOS to default settings (current BIOS only).
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Asus
servers.asus.com › support › faq › detail › 1040820
Motherboard: How to Clear CMOS
March 24, 2026 - How to Reset Motherboard BIOS Settings? Clear CMOS clears the Real Time Clock (RTC) random access memory in CMOS, which contains the date, time, BIOS password and BIOS setup parameters. Currently there are 3 ways to clear CMOS as follows: 1: Clear CMOS button 2: CLRTC Pin 3: Remove CMOS Battery ...
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rTS
rtech.support › factoids › cmos
How to Reset CMOS | rTS Wiki
1 week ago - The CMOS Clear pins are present on many desktop and even some laptop motherboards. If you can locate the CMOS clear pins (Note: Different motherboards label the CMOS clear pins differently, ASUS labels it as CLRTC, Gigabyte labels it CMOS_CLEAR, etc.)
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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 - Clear CMOS clears the Real Time Clock (RTC) random access memory in CMOS, which contains the date, time, BIOS password and BIOS setup parameters. Currently there are 3 ways to clear CMOS as follows: 1: Clear CMOS button ...
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Overclock.net
overclock.net › home › forums › intel › intel motherboards
CLRTC problem *Help please* | Overclock.net
January 25, 2011 - Intel Motherboards · overvu · O · Hi everyone. I followed the instructions on how to clear my cmos by unplugging my power, removing the battery, and switching the CLRTC jumper from pins 1-2, to 2-3. I then switched them back, and put the battery back in, and plugged in the power cord.
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Lifewire
lifewire.com › how-to-clear-cmos-2624545
How to Clear CMOS (AKA Reset BIOS Settings)
June 27, 2024 - Move the little plastic jumper from the two pins it's on over to the other pins (in a 3-pin setup where the center pin is shared) or remove the jumper entirely if this is a 2-pin setup. Any confusion here can be cleared up by checking the CMOS clearing steps outlined in your computer or motherboard manual.
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Manual Owl
manualowl.com › m › Asus › PRIME-B250M-PLUS › Manual › 504701
Headers, Clear RTC RAM 2-pin CLRTC, To erase the RTC RAM, RTC Battery header 2-pin BATT_CON - motherboard | Asus PRIME B250M-PLUS | Motherboard Pin (Page 3)
Motherboard Pin Definition · 1-3 · 1 · Headers · 1. Clear RTC RAM (2-pin CLRTC) This header allows you to clear the Real Time Clock (RTC) RAM in · CMOS. You can clear the CMOS memory of date, time, and system setup · parameters by erasing the CMOS RTC RAM data.
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ManualsLib
manualslib.com › brands › asus manuals › motherboard › p8b75-m/csm › user manual
To Erase Rtc Ram; Clear Rtc Ram (Clrtc) - Asus P8B75-M/CSM User Manual [Page 32] | ManualsLib
November 8, 2012 - 2. Clear Rtc Ram (3-Pin Clrtc) This Jumper Allows You To Clear The Real Time Clock (Rtc) Ram In Cmos. You Can Clear The Cmos Memory Of Date, Time, And System Setup Parameters By Erasing The Cmos Rtc Ram Data.
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Asus
rog-forum.asus.com › t5 › amd-500-400-series › clear-cmos-not-working › td-p › 704316
Clear CMOS not working? - Republic of Gamers Forum - 704316
March 6, 2024 - Hello, I got the Crosshair IV Hero AM4 mainboard recently, and so far it's running great. While setting up and and testing the max possible - 704316
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ManualsLib
manualslib.com › brands › asus manuals › motherboard › p8h61-m pro › user manual
Jumpers; To Erase Rtc Ram; Clear Rtc Ram (Clrtc); Jumper - Asus P8H61-M PRO User Manual [Page 32] | ManualsLib
May 7, 2013 - 1. Clear Rtc Ram (3-Pin Clrtc) This Jumper Allows You To Clear The Real Time Clock (Rtc) Ram In Cmos. You Can Clear The Cmos Memory Of Date, Time, And System Setup Parameters By Erasing The Cmos...