HP pavilion all in one desktop will not start

[Charliedude]

My all in one HP desktop will not boot up. When I push the start button the screen does not light up and there is series of 3 beeps then a tone change and 3 more beeps continuously. 

[BeemerBiker]

There is a troubleshooting guide for your  24-Xa0119 here

https://support.hp.com/us-en/product/hp-pavilion-all-in-one-pc-24-xa0000i/23302609/model/29159291/tr...

There are beep and LED codes.  Please try to match what you see and hear against the following

If the above does not apply (there is a warning about this) then try the follwing

http://h10032.www1.hp.com/ctg/Manual/c06589940

General procedure if system fails to boot

https://support.hp.com/us-en/product/hp-pavilion-all-in-one-pc-24-xa0000i/23302609/model/29159291/do...

If step 1 does not work then open the system.  Use Aire Duster.  Remove all ram sticks.

Put one stick back in and turn back on.  Try another ram if necessary

check warranty https://support.hp.com/us-en/checkwarranty

get a repair quote

1) Click on this link -
https://support.hp.com/us-en/contact-hp
2) Select your product type below.
3) Enter the serial of your device.
4) Select the country from the drop-down.
5) Select the chat or get phone number options based on your preferences.
6) Fill the web form and proceed further.

If repair not in budget then consider DIY motherboard replacement.

You have a DiamasteFHD motherboard part numbers

L17310-001 or L17310-601 $340 to $510 USD and probably not worth it on eBay

cheaper in Asia but cannot be shipped to USA

strange, this one can be shipped https://www.aliexpress.com/i/3256802439482574.html?gatewayAdapt=4itemAdapt

IMHO, time to upgrade to a modern Windows 11 system.