Member Avatar for AJKRISH

When I switch on my computer it gives a Long beeping sound and there is no display in the moniter. What will be the problem. Can anyone pls reply..?

  • 4 Contributors
  • 5 Replies
  • 703 Views
  • 5 Years Discussion Span
  • Latest Post Latest Post by Rabindra gouda

Dani AI

Generated

Short summary and a safe, ordered diagnostic checklist that builds on and without repeating their posts verbatim.

A long single/continuous beep with no video can come from several sources (RAM, video, power, or a motherboard fault). Start with non-destructive, minimal tests so the fault is isolated quickly and safely:

  • Power off and unplug, ground yourself, open the case. Remove all non-essential devices (HDD, optical, extra PCIe cards, USB devices).
  • Test memory: remove all sticks and try one known-good module in the slot recommended by the manual. Swap modules and slots. Intermittent beeps often point to a loose or failing DIMM or dirty contacts.
  • Video: remove any discrete GPU and use onboard video (or vice versa). A bad GPU or its power feed can kill video output while allowing fans to spin.
  • Peripherals and keyboard: try a different keyboard and disconnect front-panel USB/headphone connectors. A stuck key or short can produce continuous-beep behavior on some systems (this echoes ’s swap idea).

If the problem persists, move to these checks:

  • Power: try a known-good PSU or use a PSU tester/multimeter to check 12V/5V/3.3V rails (do not open the PSU). Intermittent faults that happen once a day, like reported, often point to flaky power or marginal contacts.
  • CMOS and POST info: clear CMOS (jumper or remove battery briefly) and consult the motherboard manual for BIOS/vendor beep definitions rather than relying on generic lists.
  • Diagnostics: run an extended memory test (memtest86) if the system posts intermittently. Inspect the motherboard for swollen caps, burn marks, or loose CPU power connectors.

If none of the above isolates the fault, the likely culprits are the motherboard or CPU and a component-level test or replacement is needed. Work with a friend who has spare parts or seek a shop for board-level diagnosis. Take basic ESD precautions and avoid probing live PSU internals.

Recommended Answers

All 5 Replies

Member Avatar for sittas87

Hi AJ
If its a continuous Long beep than it can posibly be eighter the Keyboard, Power Supply or worst case scenario You're Mobo. Even though it doesnt sound like a keyboard issue seeing you cant even get a display, Ill recommend that you borrow a keyboard and a PSU (Power supply) from a buddy to run the test. Chenge them on e at a time

Member Avatar for sparkax

What is the BIOS on your PC.
AMI,Award,Phoenix,IBM or other.

AMI/ Award/Phoenix
1 long beep indicates memory error.
Try cleaning and reseating memory modules.
IBM
1 continuous beep indicates failing Power
Supply (or worse scenario failed motherboard)

Member Avatar for sparkax

Apologies sittas87, your reply came as I was typing.I tend to agree that it is most likely the PSU or motherboard.

Member Avatar for sittas87

To be specific the model type does apply. But in most cases this will be the case.
Btw, no need to apologies we're all here to help ;)

Member Avatar for Rabindra gouda

Sometimes when I power on my cpu , I hears 1 long beep and No display on screen . It happens once in a day . Eveytime it works fine
My specs
dula core 3rd gen G2020
4gb Ram Adata
1Tb seagate hardisk
Dh61Bf intel motherboard
Zebronics Gold PSU
samsung Dvd Writer

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.