Laptop error lookup desk by CMOS beep

The pc error lookup desk and illness prognosis by the beep sound emitted by the desktop pc has been posted on PC World Vietnam since 2004 however remains to be learn by {many professional} pc repairers.

POST is an inner verify that’s carried out when beginning or restarting the pc. As a part of the BIOS, the POST program checks the processor first, by working it by just a few easy operations. Then POST reads the CMOS RAM reminiscence, which shops details about the quantity of reminiscence and the kind of drives utilized in your machine. Subsequent, POST writes to after which reads out a distinct variety of knowledge samples for every byte of reminiscence (you’ll be able to see the bytes counted on the display screen).

Lastly, POST proceeds with every gadget; you will notice the indicator lights on the keyboard and the drive blink and the printer is reset for instance. BIOS will proceed to check the {hardware} after which contemplate drive A for DOS; if drive A just isn’t discovered, it switches to take a look at drive C.

Bios Ami Publish Diagnostic Error Code Description

BIOS Ami . illustration

1 brief beep: A brief beep signifies a profitable system check, that is whenever you see each check line displayed on the display screen. In case you do not see something on the display screen, verify the monitor and video card first to see if it is plugged in appropriately. If not, then among the chips in your motherboard have issues. Evaluate RAM and reboot. If the issue persists, it is doubtless that the motherboard is defective. It is best to exchange the motherboard

.2 brief beeps: RAM error. Nevertheless, first verify the video card. If it really works nice then see if there may be an error message on the display screen. If not, your reminiscence has a parity error. Plug the RAM again in and reboot. If the error persists, reverse the RAM slot.

Three brief beeps: Mainly the identical as half 2 brief beeps.

Four hours: Mainly the identical as half 2 brief beeps. Nevertheless, it may be as a consequence of a broken board timer.

5 brief beeps: Plug the RAM again in. In any other case, the motherboard could have to be changed.

6 brief beeps: The chip on the motherboard that controls the keyboard just isn’t working. Nevertheless, you continue to should plug the keyboard again in or attempt one other keyboard first. If the state of affairs doesn’t enhance, it’s time to exchange the motherboard.

7 brief beeps: CPU is broken. Substitute with one other CPU.

eight brief beeps: Video card not working. Re-insert the cardboard. If it nonetheless beeps, the trigger is both a broken card or a defective reminiscence chip on the cardboard. Substitute the video card.

9 brief beeps: Your BIOS is defective. Change the BIOS to a different.

10 brief beeps: Your downside is in CMOS. It’s best to interchange different motherboards.

11 brief beeps: The cache chip on the motherboard is broken. Substitute the board with one other.

1 lengthy beep, Three brief beep: RAM error. Please attempt to plug within the RAM once more, if not, you need to change the RAM

1 lengthy beep, eight brief beep: Video can’t be examined. Reconnect the video card.

Bios Phoenix Publish Diagnostic Error Code Description

BIOS Phoenix beeps are a bit extra detailed than BIOS AMI. This BIOS emits Three collection of beeps one after the other. For instance, 1 cease beep-Three cease beeps-Three cease beeps. Every collection is separated by a brief pause. Take heed to the beep, rely the variety of beeps.


1-1-3: Your pc can’t learn the configuration data saved in CMOS.

1-1-4: BIOS must be modified.

1-2-1: The clock chip on the mainboard is damaged.

1-2-2: Motherboard downside.

1-2-3: Motherboard downside.

1-3-1: You’ll want to exchange the motherboard.

1-3-3: You’ll want to exchange the motherboard.

1-3-4: Motherboard downside.

1-4-1: Motherboard downside.

1-4-2: Evaluate the RAM.

2-_-_: Lengthy beep after 2 beeps signifies that your RAM has downside.

3-1-_: One of many chips on the motherboard is damaged. May need to interchange the motherboard.

3-2-4: The keyboard verify chip is damaged.

3-3-4: Your pc can’t discover the video card. Strive plugging within the video card once more or attempt one other card.

3-4-_: Your video card just isn’t working.

4-2-1: A chip on the motherboard is damaged.

4-2-2: First verify if the keyboard has any downside. If not, then there’s a downside with the motherboard.

4-2-3: Similar as 4-2-2.

4-2-4: One of many plug-in playing cards on the motherboard is damaged. You attempt to pull them out one after the other to establish the perpetrator. If the broken card can’t be discovered, the final resolution is to interchange the motherboard with a brand new one.

4-3-1: Motherboard error.

4-3-2: See 4-3-1. 4-3-3: See 4-3-1. 4-3-4: The onboard clock is damaged. Strive going into Setup CMOS and verify the date and time. If the clock doesn’t work, the CMOS battery have to be changed.

4-4-1: There’s a downside with the serial port. Strive plugging this port again into the motherboard to see if it really works. If not, you need to discover the jumper to disable this serial port.

4-4-2: See 4-4-1 however this time a parallel port.

4-4-3: Digital coprocessor downside. If the issue is critical, it’s best to interchange it. 1-1-2: The motherboard has an issue. 1-1-3: There’s a downside with CMOS RAM, verify CMOS battery and mainboard.

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