Not hard to Google, it indicates some RAM error but the beeps could differ per motherboard manufacturer but should be all the same. Take off all the RAM sticks and turn it on, if you hear a single but repeating beep then your motherboard should be alright. Try switching the RAM sticks by placing them into the other slots or make sure that they're firmly placed and held in place.
OP, do you know your make/model of your computer/motherboard?
The beeps commonly occur during the boot up process of the BIOS. This is called "POST" (power-on self-test) and should only beep once normally or something (model specific).
I had the same thing, i had to buy a complete new Motherboard, so i ended up just buying a complete new PC with new case cause it was cheaper and saved me time , and used my old parts that still worked, but any further solutions you need to ask other people, im not really into building PC's that much