No video is the VGA damaged

Hi @r4czygipoxlza4

Given that the "morse signal" you posted is the actual code it seems like a 2:1 error code.

This is a BIOS checksum error.

Since you haven't used it for approx 5 years (is this correct?) there's a fair chance that the non rechargeable coin cell RTC battery on the motherboard has become completely discharged and the BIOS has become corrupted, preventing a normal start.

Disconnect the power from the PC and then open it up and locate the coin cell battery on the motherboard

Remove it from the board and check its voltage. If it is <2.5V DC replace it. Usually they're a CR2032 type Lithium coin cell (check type number on battery) and are available everywhere. I suggest that you replace it anyway as these batteries only last for 4-6 years.

With the RTC battery removed, press and hold the PC power On button for 30 seconds and then release it.

Reinsert the RTC coin cell battery (+ve on top as marked on the battery) reassemble the PC, reconnect the power and turn it on and check if it now works OK.

If it works OK, there may be a message regarding the date and time being incorrect. This is normal as the BIOS has been reset back to its default condition. Once the date and time have been corrected the message won't appear the next time the PC is started. Also any user definable BIOS setting that were altered by you to suit whatever operating requirements you has, will have to be changed back again also.