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In this case, I strongly recommend trying with a BIOS recovery to the version 0048; you can follow the steps here:
Before doing the BIOS recovery, please disconnect every component from your system, RAM, hard drive, video card, power supply and remove the battery from your motherboard for at least 45 minutes to an hour.
If the BIOS recovery is done successfully, please download the BIOS version 0109 and update to that version with a bios recovery method as well. Continue to the latest version with the BIOS recovery method.
Three beeps also indicates a video card problem.
it's rare but possible
1) power off and remove the power chord then hold down the power button 30 seconds
2) remove your video card and reset your BIOS by removing the battery for 15 - 30 minutes
3) put back the battery and the video card close the pc case and power chord and start your computer
if after all that you still have the 3 beeps
then is definitely the memory ram
in that case you have no choice but to buy new memory ram
also be aware that when you removing and installing the memory ram
you should remove the video card first or you may potentially have problems