I have exactly the same problem with 3 beeps and black screen... I have removed my memory sticks RAM and placed new RAM into the HP Pavilion dv9722tx without an improvement....Did you resolve your problem?....
Posts19530Registration dateWednesday October 8, 2008StatusContributorLast seenJune 15, 20191,832 Jan 29, 2012 at 03:48 PM
3 beeps at start-up - is a sign of memory failure. If you have two memory modules you can swap out one and then the other to identify the bad one. Sometimes just removing and inserting the memory module will fix the problem. Be careful to ground yourself before you remove the module and try to NOT touch the metal prongs. Don't do this on a carpeted floor -that is sure to generate static electricity that can kill the memory..