Hello. Need help on this one. Recently turned on my PIII 600mhz pc after more than a week of non-use and, instead of booting, heard long beeps instead. So, I opened the unit, detached the detachables one by one until I was able to isolate it to a defective SDRAM. After replacing it with a working ram, the pc got stuck at POST. However, after powering-off and rebooting after waiting for a few secs, the PC booted up properly. Here's the thing. Powering it up the next round, the long beeps are back again. What's happening?