|You need to be more specifc about your hardware. Your board may be a PSLP-LE, but it's from an HP system, correct?|
You haven't told us which CPU, which RAM, which video card, etc or what you were doing when this problem occurred. Have you made any hardware changes that may have brought this on? Did you move the case & possibly knock something loose in the process?
"I am sure it is 2 short 1 long beep"
Then it's a RAM problem, not a video card problem. Even so, your motherboard has integrated graphics so if you were to remove the video card completely, you could still connect the monitor to the video-out port on the board. Scroll down to the picture of the ports in the link I supplied above...try connecting the monitor to port #11.