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Acer Beep Codes – How To Identify And Fix Issues Quickly

If you’re an Acer laptop user, you may have encountered beep codes during start up or while using your laptop. Beep codes are diagnostic messages that indicate hardware issues with your computer.

In this blog post, we’ll outline the most common beep codes and what they mean. We’ll also provide tips on how to fix these issues.

So, if you’re experiencing any beeping noises on your Acer laptop, keep reading!

What Are Acer Beep Codes?

Acer beep codes are diagnostic indicators used to help identify hardware failures. Each code is unique to the particular hardware component, and can be used to troubleshoot issues with that specific component.

There are a few different sets of Acer beep codes in use, so it’s important to consult the appropriate documentation for your particular model of computer.

To turn on an Acer Laptop or Chromebook, simply press the power button. Make sure the power cord is connected to the laptop or Chromebook and the wall outlet.

Acer Beep Codes Relationship With Hardware Issues

Beep codes can be useful when troubleshooting hardware issues, as they can help pinpoint the specific component that is causing the problem.

However, it’s important to note that not all hardware failures will generate a beep code. In some cases, other indicators may be present, such as error messages on the screen or strange behavior from the computer.

If you’re unsure whether or not a beep code is being generated, it’s always best to inspect your computer closely to confirm.

Identify The Beep Codes On Your Acer Laptop

If you do hear beep codes, it’s important to take note of the specific pattern of beeps, as this can help identify the issue.

Acer beep codes are typically short – one or two quick beeps – but some may be longer or more complex. Once you’ve determined the pattern, you can consult a guide to find out what the codes mean.

If you think you’re hearing Acer beep codes, the first step is to try and identify the pattern. If you’re unsure, it’s always best to seek professional help.

Once you’ve determined the pattern, you can consult a guide to find out what the codes mean and how to resolve the issue.

Acer Beep Codes Symptoms

These are the symptoms:

  • 3 Beeps – Ram failure.
  • 4 Short – System timer failure.
  • 2 Beeps – Parity Circuit failure.
  • 1 Short – DRAM refresh failure.
  • 1 Long – Extended RAM Failure.
  • 1 Long 1 Short – RAM failure.
  • 3 Long 2 Shorts – Memory Failure.
  • 1 Long, 2 Short – DRAM or circuit failure.
  • 1 Short Beep, No Display – Display test failed.

How To Fix Acer Beep Codes

Here’s how:

Reset CMOS Battery

If you are receiving Acer beep codes, it could be because your CMOS battery needs to be reset. The CMOS battery helps to keep all of your computer’s settings stored and remembered, so if it becomes dislodged or dies, it can cause problems.

Resetting the battery is a relatively simple process, and should only take a few minutes. Once you have reset the battery, your Acer beep codes should no longer be an issue.

To reset your CMOS batter, you will first need to locate it. The battery is usually found near the CMOS chip on the motherboard, and may be labelled as such.

Once you have found the battery, simply remove it from the socket and leave it out for a few minutes. This will allow the stored charge to dissipate and will reset the settings.

After a few minutes, you can then re-insert the battery and boot up your computer. Your Acer beep codes should now be gone.

Please note that these process is not the same as resetting your Acer laptop but can be helpful whenever you would like to reset your CMOS battery.

To restart your Acer laptop on Windows 10/11, simply click on the Restart Acer Laptop for Windows 10/11 anchor text for detailed instructions.

Diagnose Ram

If you’re getting Acer beep codes, it could be due to a problem with the RAM. To diagnose the issue, you’ll need to check both the sticks and the slots.

If any of them are damaged or not seated properly, that could be causing the issue. Replacing or reseating the RAM should fix the problem.

Oce you have it replaced or fixed, then you should turn on your Acer laptop to see if you won’t hear any beep codes.

If your Acer laptop won’t turn on, then you may need some few extra steps provided in an article on our website.

Reinstall Graphics Driver

If you’re having issues with your Acer beep codes, one thing you can try is to reinstall your graphics driver.

This process will vary depending on which type of graphics card you have, but generally, you can download the latest driver from the manufacturer’s website and follow their instructions.

In some cases, you may need to uninstall the old driver first before installing the new one and then restarting your Acer Laptop.

This process can fix Acer beep codes by ensuring that your graphics card is up to date and compatible with your system.

Also, it will help you to resolve issues like vertical or horizontal screen lines on your monitor or laptop.

Connect Keyboard And Mouse Correctly

Beep codes are used by computers to communicate specific issues. They can be very useful in diagnosing hardware problems, but only if you know how to interpret them.

If your Acer computer is producing beep codes, it can be helpful to connect the keyboard and mouse correctly.

This will help ensure that the beep codes are coming from the computer, and not from other devices.

Additionally, connecting the keyboard and mouse correctly can help you rule out potential software causes for the beep codes.

If you’re still having trouble interpreting the beep codes, Check the symptoms section in this article to be able to detect where the problem is coming from.

Rewire Internal Cable

If your Acer laptop is giving you beep codes and you think it may be due to faulty wiring, then rewiring the internal cables correctly can help fix the problem.

Although it may seem daunting, with a little patience and carefulness it is a relatively simple process. First, unscrew the back panel of your laptop to access the internal cables.

Then, using a multimeter, test each cable to see if there is continuity between the two ends. If there is not, then you will need to cut the cable and strip away the insulation to expose the wires inside.

Once you have done this, twist the wires together and solder them to create a new connection.

Finally, screw the back panel back on and test your laptop to see if the beep codes have stopped. If they have, then you have successfully fixed your problem.

Use A Cooling Pad

If you’re getting beep codes on your Acer computer, one possible solution is to use a cooling pad. This will help to dissipate the heat that may be causing the issue.

Be sure to follow the instructions that come with the cooling pad, and make sure it’s properly ventilated. If you’re still having issues after using a cooling pad, you may need to replace your laptop fan with the help of a computer engineer.

Why Is My Acer Beeping?

There are a few reasons why your Acer computer may be emitting beep codes.

One possibility is that there is an issue with the hardware, such as a loose connection.

Another possibility is that there is a software issue, such as a corrupt driver.

If you’re not sure what the cause of the beeping is, you can try running a diagnostic test to see if any errors are detected.

If you continue to hear beep codes, it’s best to go through the solutions provided in this post.

Acer Post Beep Codes

CodeBeepsPOST Routine Description
G2h Verify Real Mode
G3h Disable Non-Maskable Interrupt (NMI)
G4h Get CPU type
G6h Initialize system hardware
G8h Initialize chipset with initial POST values
G9h Set IN POST flag
GAh Initialize CPU registers
GBh Enable CPU cache
GCh Initialize caches to initial POST values
GEh Initialize I/O component
GFh Initialize the local bus IDE
1Gh Initialize Power Management
11h Load alternate registers with initial POST values
12h Restore CPU control word during warm boot
13h Initialize PCI Bus Mastering devices
14h Initialize keyboard controller
16h1-2-2-3BIOS ROM checksum
17h Initialize cache before memory autosize
18h 8254 timer initialization
1Ah 8237 DMA controller initialization
1Ch Reset Programmable Interrupt Controller
2Gh1-3-1-1Test DRAM refresh
22h1-3-1-3Test 8742 Keyboard Controller
24h Set ES segment register to 4 GB
26h Enable A20 line
28h Autosize DRAM
29h Initialize POST Memory Manager
2Ah Clear 215 KB base RAM
2Ch1-3-4-1RAM failure on address line xxxx*
2Eh1-3-4-3RAM failure on data bits xxxx* of low byte of memory bus
2Fh Enable cache before system BIOS shadow
3Gh1-4-1-1RAM failure on data bits xxxx* of high byte of memory bus
32h Test CPU bus-clock frequency
33h Initialize Phoenix Dispatch Manager
36h Warm start shut down
38h Shadow system BIOS ROM
3Ah Autosize cache
3Ch Advanced configuration of chipset registers
3Dh Load alternate registers with CMOS values
42h Initialize interrupt vectors

CodeBeepsPOST Routine Description
45h POST device initialization
46h2-1-2-3Check ROM copyright notice
48h Check video configuration against CMOS
49h Initialize PCI bus and devices
4Ah Initialize all video adapters in system
4Bh QuietBoot start (optional)
4Ch Shadow video BIOS ROM
4Eh Display BIOS copyright notice
50h Display CPU type and speed
51h Initialize EISA board
52h Test keyboard
54h Set key click if enabled
58h2-2-3-1Test for unexpected interrupts
59h Initialize POST display service
5Ah Display prompt “Press F2 to enter SETUP”
5Bh Disable CPU cache
5Ch Test RAM between 512 and 640 KB
60h Test extended memory
62h Test extended memory address lines
64h Jump to User Patchl
66h Configure advanced cache registers
67h Initialize Multi Processor APIC
68h Enable external and CPU caches
69h Setup System Management Mode (SMM) area
6Ah Display external L2 cache size
6Bh Load custom defaults (optional)
6Ch Display shadow-area message
6Eh Display possible high address for UMB recovery
70h Display error messages
72h Check for configuration errors
76h Check for keyboard errors
7Ch Set up hardware interrupt vectors
7Eh Initialize coprocessor if present
80h Disable onboard Super I/O ports and IRQs
81h Late POST device initialization
82h Detect and install external RS232 ports
83h Configure non-MCD IDE controllers
84h Detect and install external parallel ports
85h Initialize PC-compatible PnP ISA devices
86h Re-initialize onboard I/O ports
87h Configure Motherboard Configurable Devices (optional)
88h Initialize BIOS Data Area
89h Enable Non-Maskable Interrupts (NMIs)

8Ah Initialize Extended BIOS Data Area
8Bh Test and initialize PS/2 mouse
8Ch Initialize floppy controller
8Fh Determine number of ATA drives (optional)
90h Initialize hard-disk controllers
91h Initialize local-bus hard-disk controllers
92h Jump to UserPatch2
93h Build MPTABLE for multi-processor boards
95h Install CD-ROM for boot
96h Clear huge ES segment register
97h Fixup Multiprocessor table
98h1-2Search for option ROMs. One long, two short beeps on checksum failure.
99h Check for SMART drive (optional)
9Ah Shadow option ROMs
9Ch Set up Power Management
9Dh Initialize security engine (optional)
9Eh Enable hardware interrupts
9Fh Determine number of ATA and SCSI drives
A0h Set time of day
A2h Check key lock
A4h Initialize Typematic rate
A8h Erase F2 prompt
AAh Scan for F2 key stroke
AEh Clear Boot flag
B0h Check for errors
B2h POST done- prepare to boot operating system
B4h1One short beep before boot
B5h Terminate QuietBoot (optional)
B6h Check password (optional)
B9h Prepare Boot
BAh Initialize DMI parameters
BBh Initialize PnP Option ROMs
BCh Clear parity checkers
BDh Display MultiBoot menu
BEh Clear screen (optional)
BFh Check virus and backup reminders
C0h Try to boot with INT 19
C1h Initialize POST Error Manager (PEM)
C2h Initialize error logging
C3h Initialize error display function
C4h Initialize system error handler

C5h PnPnd dual CMOS (optional)
C6h Initialize notebook docking (optional)
C7h Initialize notebook docking late
C8h Force check (optional)
C9h Extended checksum (optional)
D2h Unknown interrupt


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Solomon Omolabi is a seasoned IT professional with 10 years of industry expertise. As the owner of, he provides meticulously researched and comprehensive articles that effortlessly tackle any technical challenge. Solomon's contributions have earned him recognition on esteemed professional platforms, making him a trusted authority in resolving complex IT issues. Read more.

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