Nothing displayed on the monitor when PC is Started

All wire connections are correct.
I have removed monitor and Hard disk and checked on other CPU and its perfectly working fine.
If anyone can help me to troubleshot this issue.

Samtron 56v, windows xp, drivers installed.

Thanks in Advance

Dani AI

Generated

Following the thread: asked about beeps, flagged video hardware, and noted contact/dust issues. Since the monitor and disk check out on another PC, the problem is most likely the machine not reaching POST (power, motherboard, CPU or GPU) rather than the display or HDD. The next steps focus on diagnostics that go beyond simply reseating parts.

Try these targeted checks in order:

  1. Verify basic power signs: front-panel LEDs, CPU and case fans, and any HDD activity LED. No lights at all points at the PSU or front-panel wiring.
  2. Confirm the board can give POST feedback: attach a small case speaker or check the motherboard debug LEDs/POST-readout in the manual. Many boards show a 2- or 4-LED status (CPU/DRAM/VGA/BOOT) or a hex POST code.
  3. Check power delivery: ensure the 24-pin ATX and the 4/8-pin CPU power connectors are seated and that any GPU 6/8-pin PCIe power is connected. If available, swap in a known-good PSU or measure rails with a multimeter (12V/5V) to rule out a failing supply.
  4. Inspect the board visually for bulging capacitors, scorch marks, or a loose CPU heatsink. If the board supports BIOS recovery or has a CMOS clear jumper, try clearing CMOS per the manual.

If the debug LEDs or a POST card give a code, look that up in the motherboard manual (codes are vendor-specific). If there is still silence but fans spin and power is present, the fault narrows to CPU or motherboard failure and bench-testing with spare parts or a service shop is the safest next move. Work with the case unplugged and grounded, and stop if any test seems unsafe.

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All 5 Replies

Any beeps?

No beep sound, monitor and harddisk are working fine, drivers are installed,

Have you checked the graphics card ?

Maybe take out your ram and graphics card and blow out any dust that maybe settled in the slot there inserted into. Just recently my PC wouldn't boot after installing a new usb card. After cleaning the slot it was inserted into the PC booted and worked fine from there on. Good Luck

How to check graphics card, video card, or any let me know if any other hardware which i need to verify.

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