Hello Suz_Suzanne,
Welcome to Microsoft Community.
I understand your situation. On Lenovo laptops, 4 beeps usually indicate a BIOS ROM checksum error.
There could be several reasons for this:
- CMOS battery failure: The CMOS battery is used to maintain BIOS settings and the clock. If the battery fails, it may cause BIOS data to not be saved properly.
- BIOS corruption or need for a refresh: The BIOS file may be corrupted or need to be refreshed.
- Motherboard issue: In rare cases, this beep pattern may also indicate a motherboard problem.
If your laptop supports removing the CMOS battery, you can take it out to reset the BIOS settings. This may clear the checksum error.
Here is a general guide for the procedure. You can also search for disassembly videos for your specific model (if you are not familiar with hardware, I do not recommend doing this alone to avoid further risks. Please hand over the device to the official brand after-sales service):
- Shut down and disconnect the power: Turn off the laptop and disconnect the power adapter.
- Remove the back cover: Most laptop back covers can be removed by unscrewing a few screws. Be careful to avoid damaging the back panel.
- Locate the CMOS battery: The CMOS battery is usually a coin cell battery (CR2032) or a small battery connected to the motherboard with a plug.
- Remove the battery and wait: Carefully remove the battery and wait for about 5-10 minutes to ensure the BIOS settings are completely cleared.
- Reinsert the battery and reassemble the back cover: Put the CMOS battery back in place, reassemble the back cover, reconnect the power, and start the laptop.
Disclaimer: Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites or any support related to technology.
If you are going to modify BIOS Settings, please back up all your personal files first to ensure you do not lose data.
If resetting the CMOS battery does not work, you can try updating the BIOS. Lenovo should provide BIOS update tools.
If none of the above steps resolve the issue, or if you are unsure about the procedure, it is recommended to contact Lenovo's official after-sales service center for further diagnosis and repair.
Best wishes
Leo Z | Microsoft Community Support Specialist
Reddit
reddit.com › r/lenovo › yoga 4 beeps at start-up after changing time in bios.
r/Lenovo on Reddit: Yoga 4 beeps at start-up after changing time in BIOS.
August 18, 2022 -
Hello, as the title read my laptop beeps 4 times on start-up after I foolishly changed the time in BIOS. Anyone have any ideas as how to fix it. Any help is greatly appreciated.
Lenovo Community
forums.lenovo.com › t5 › ThinkStation-Workstations › X61-beeps-4-times-and-does-not-boot › m-p › 3566773
X61-beeps-4-times-and-does-not-boot - English Community - LENOVO COMMUNITY
February 8, 2017 - 4x 4 beeps is a really bad sign, additionally to the recommendation above to remove the RAM chips, also remove the hard drive, the wlan and wwan (if available) cards. Do not remove the CMOS battery yet. Then try to boot again, you should hear a series of beeps like 1-3-3-1.
Videos
r/thinkpad on Reddit: Thinkpad beeps 4 times
r/thinkpad on Reddit: My Thinkpad X60 cant start, 4 beeps and no ...
29:59
LENOVO T430 - HOW TO REPAIR 4x BEEP SOUND FAST, NO DISPLAY - YouTube
Computer Beeps Four Time and Won't Display | Quick Solution
01:55
Lenovo ThinkPad SmartBeep Diagnostics - YouTube
Quora
quora.com › Why-does-my-Lenovo-Thinkcentre-PC-CPU-make-4-beeps-short-short-short-long-continuously-whenever-I-try-to-boot-it-it-does-not-start
Why does my Lenovo Thinkcentre PC CPU make 4 beeps (short, short, short, long) continuously whenever I try to boot it (it does not start)? - Quora
Answer: That beeping is called as POST(power-on self-test) check. The 3 short 1 long beep indicates usually indicates ‘extended memory failure’ specific to IBM it indicates video card issue sometimes Any kind of beep except single beep is hardware failure.
Reddit
reddit.com › r/lenovo › lenov yoga 700-14isk 4 beeps on startup
r/Lenovo on Reddit: Lenov YOGA 700-14ISK 4 beeps on startup
October 7, 2018 -
My lenovo laptop (YOGA 700-14ISK) beeps 4 (short) times on start-up. I looked into what the reason was and according to the Lenovo website it is because - Clock error, timer on the system board does not work I have tried locating the CMOS Battery but no luck! Any advise?
Top answer 1 of 3
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Based on what I read, the first thing is to charge the battery for 8 hours using the charger so the system board battery fully charges. If that doesn't work, replace the CMOS battery (should look like a watch battery, location should be in the Hardware Maintenance Manual) them run the Bios Setup Utility and reset the time/date. The third option was a faulty system board so I hope it's not that.
2 of 3
1
Hi fvnbab! Sorry about this. Regarding the beeping sounds, it pertains to a possible POST (Power On Self Test) issue. Are you getting any display? If so, is there any error message? Thanks! -Allan_Lenovo
Lenovo Community
forums.lenovo.com › t5 › ThinkCentre-A-E-M-S-Series › 4-beeps › m-p › 5165180
4-beeps
August 21, 2022 - Welcome to Lenovo and Motorola community. If the website doesn't work properly without JavaScript enabled. Please enable it to continue
Lenovo Community
forums.lenovo.com › t5 › Lenovo-IdeaPad-1xx-3xx-5xx-7xx-Edge-LaVie-Z-Flex-Laptops › 4-beep-sound › m-p › 5141049
English Community-Lenovo Community
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Lenovo Community
forums.lenovo.com › t5 › ThinkPad-S-Series-ThinkPad-Yoga › 4-Beeps-4-times-after-BIOS-update-Screen-Black › m-p › 4447708
4-Beeps-4-times-after-BIOS-update-Screen-Black
June 6, 2019 - Welcome to Lenovo and Motorola community. If the website doesn't work properly without JavaScript enabled. Please enable it to continue
Lenovo Community
forums.lenovo.com › t5 › ThinkPad-L-R-and-SL-series-Laptops › L13-Yoga-Gen-2-plays-4-beeps-and-won’t-boot › m-p › 5370704
L13-Yoga-Gen-2-plays-4-beeps-and-won't-boot
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Lenovo Community
forums.lenovo.com › t5 › ThinkPad-T400-T500-and-newer-T-series-Laptops › Thinkpad-450s-Won-t-start-Beeps-4-4-4-4 › m-p › 5053591
Thinkpad-450s-Won-t-start-Beeps-4-4-4-4
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Lenovo Support
support.lenovo.com › us › en › solutions › ht505216-post-beep-symptoms-thinkcentre
Beep symptoms during startup – ThinkCentre - Lenovo Support US
This article shows you solutions to resolve POST Beep symptoms for ThinkCentre
Lenovo Community
forums.lenovo.com › t5 › ThinkPad-X-Series-Laptops › X61-beeps-4-times-and-does-not-boot › td-p › 3566773
Re: X61 beeps 4 times and does not boot
February 8, 2017 - Welcome to Lenovo and Motorola community. If the website doesn't work properly without JavaScript enabled. Please enable it to continue
Who Is McAfee?
whoismcafee.com › lenovo-laptop-beeping-noise
Lenovo Laptop Beeping Noise Fix | Complete Guide | December 2025
November 2, 2025 - If your Lenovo computer beeps 4 times on startup, this typically indicates a clock error or BIOS ROM checksum error. This means there’s a problem with your system’s timing functions or the BIOS data has become corrupted.
Lenovo Community
forums.lenovo.com › t5 › Lenovo-Yoga-Series-Notebooks › Yoga-700-14-ISK-at-startup-beeps-4-short-and-doesnt-boot-Black › m-p › 4256415
Yoga 700 14 ISK at startup beeps 4 short and doesnt boot ! ...
November 1, 2018 - Welcome to Lenovo and Motorola community. If the website doesn't work properly without JavaScript enabled. Please enable it to continue
Top answer 1 of 2
2
Hi All Trend, · Are the 4 beeps actually 1 long beep followed by 3 short beeps? · The service manual has the following reason if this is the case. · 1 long and 3 short beeps · Keyboard error · Perform the following actions in order. · 1. Make sure the keyboard is properly connected to the keyboard connector. · 2. Replace the keyboard. · 3. Replace the system board.
2 of 2
1
All Trend this could be an issue with your computer not finding the OS. Download the service manual from here Follow the diagnostics chapter on how to create a diagnostic disk and see if you can access your computer. Let us know what you find.
YouTube
youtube.com › pc monkey
How To Fix a Lenovo Computer That Beeps at Startup or Keeps Beeping - YouTube
If your Lenovo laptop computer beeps at during startup, use this video to see the most common reason why, and how to fix it. Computer use 'Beep Codes' to tel...
Published April 24, 2020 Views 20K
Lenovo Community
forums.lenovo.com › t5 › ThinkStation-Workstations › ThinkStation-S30-4-beeps-on-power-up-and-no-picture › m-p › 5113498
ThinkStation-S30-4-beeps-on-power-up-and-no-picture - English Community - LENOVO COMMUNITY
Work from there to resolve any ... F2 Press the Arrow down key ONCE. Next is the Enter Key. Now press F9. Press the enter key. Finally F10 and Enter. If in doubt please ask. ... @slipkd - Can you post an audio/video clip of the 4 beep error sequence?...
Thinkpads Forum
thinkpads.com › forum › viewtopic.php
4 Groups of 4 Beeps then wont start? - Thinkpads Forum
I just encountered the same problem on my IBM T42p (~6 years old), and fixed it by reseating the memory module. I'm not saying reseating the memory will fix any machine with 4x4 beeps, but it's worth a shot, and is certainly DIY-able. I’ve had the same startup problems (no video, but fan and battery and power lights) for about a year; every time that happens (~once a week), I use IBM’s mystical “static discharge” procedure (remove AC adapter and battery, press and release power button 10 times, then hold for 30 – 60 seconds) to bring my machine back to life.
Lenovo Community
forums.lenovo.com › topic › findpost › 1516 › 4256415 › 4256415
Re: Yoga 700 14 ISK at startup beeps 4 short and doesnt ...
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Lenovo Support
support.lenovo.com › hk › en › solutions › ht505216-post-beep-symptoms-thinkcentre
Beep symptoms during startup – ThinkCentre - Lenovo Support HK
This article shows you solutions to resolve POST Beep symptoms for ThinkCentre