5 beeps on startup issue, cannot boot, no display

[ttyl103]

I have a old pc (5 years) with
-Memory (1*8gb)
-Intel core i5
-HP Pavilion
-Since I cannot boot my pc, the rest of details are absent
Please help!

[Mark.]

first thing to try is to remove the processor, memory and video card (if it has one) and clean their contacts and the slot they came from, put them back and see if that helps.
the processor will probably need new thermal paste - but for this test to just to get the PC to boot, you'll be fine.

has the PC been in use and this problem has suddenly happened?

during bootup, can you get into the BIOS?  (usual keys are Del, Esc or F2, but since you have no display, this is probably NO)
is the PC getting power, that is, are LED's flashing, hard drives spinning and fans whirring when you start it?

[VintronNZ]

5 beeps on a HP is normally a memory fault. The first thing I would do is with the power turned off at the wall, but still plugged in. Ground yourself to the case of the computer and then remove and insert the memory 3 or 4 times. This should clean the contacts or improve the contact between the socket and memory.

If the pavilion is a laptop then make sure you remove the main battery and disconnect the laptop from the power supply before removing and inserting the memory. Ground yourself before touching the memory.

If after doing this the computer still doesn't boot you may need to try the other memory slot or different memory.

[Justin_Time]

I believe 5 beeps indicates a BIOS issue. Can you boot into Safe Mode with Networking? If so try going to the manufacturer of your computer or motherboard and see if there's a bios update available.

[Allan]

The beep codes do NOT indicate a bios issue and do NOT flash your bios without a reason to do so.

The beep codes are specific to the bios in your system. 5 beeps on your system probably indicates a major hardware failure - please see: https://support.hp.com/us-en/document/c02222922