1. one short beep when displaying logo > = No error,, all is well
2. long beep (usually repeats) >= No RAM installed or not detected, or RAM gone bad
3. One long beep followed by three short beeps >= videocard not found or video memory bad
4. High frequency beeps while working >= CPU overheat or System running at to low frequency
These are just few common codes, your's may vary, ought to confirm. Sounds like you had a RAM code. First, if you can, unclip both white clips on RAM then remove visual inspect and reinstall very securely in other slot be sure clips go in all the way, notice space oreintation on what I like to call the teeth. Do one thing at a time then test, Next Try updateing the onboard video graphics, with driver for XP OS for the HP link from above http://h10025.www1.h...;product=409988
copy and paste it in address bar of internet express if his link didn't open for you or use MSI, or I will find if you can't get one. There is two set aside memory spaces for your video, an unchangable and a small portion of your RAM can be set aside for graphics. You should try finding that in BIOS and increaseing to 32mb. Note to other readers, PLEASE comment to "OMC" to help explain graphics memory. I think if he set aside too much that he may have caused RAM error by shorting RAM for CPU, or else did not set aside enough and has error from graphics, needs to here it (beeps) again. I just got home from having titanium elbow piece put in (see my previous post on how to view MRIs ,that I stole from my doctor's office), am off work and can google for him but not up to daily support ability yet. His economy board originally came with very restricted BIOS and drivers but is getting improved on. I need to regoogle and find you some owners that think very highly of it. Also,you still need RAM, and if video, you can change to PCI vid card cheap, I even got some in parts bins. As long as it's working, have patients, there's good help here on geeks and you are learning. Members , please jump in on this for OMC! This kid is not a quitter, but doesn't need mislead or conlicts without valid reasoning, PLEASE! If you fry the board, It's still fixable, Your most valuable piece is that nice CPU.