Posted 30 October 2011 - 06:45 PM
I guess I'll start from the beginning. I have a Compaq PC and HP monitor with built-in speakers, which were purchased in 2009 and have worked perfectly up until now. Yesterday, I was going to back up my husband's PS3 and using an old external hard drive I had laying around. The hard drive needed to be formatted in FAT32 first, which I was going to do with the computer. The HDD has a slot for a power adapter as well as USB connector. Couldn't remember if it really needed external power (should've known it didn't--DUMB!), but I went ahead and plugged it in, then plugged the USB into the computer. Instantly it "zapped" the computer, which I was able to start back up. At that point, the USB wired keyboard was not working--when plugged in (regardless of which slot), there was an error, something to the effect of "this device is not recognized." Figured it was "fried" and went out and bought a new keyboard, which works fine. The external hard drive seems to be dead, too, but no biggie (it was from an old laptop, and I never use it anyway).
Getting to the current problem: now I have realized the sound's not working either. The monitor is connected to the PC via the audio line out jack. The computer is now not recognizing that it is even plugged in. It also does not recognize when anything is plugged into the headphone jack on the front of the tower. Cannot even open the volume control in the taskbar, as it says "No speakers or headphones are plugged in." I have done all the troubleshooting I can find, made sure the sound card/chip is okay, updated the driver, etc., and haven't been able to find anything. Just wondering if anybody out there would have a clue where exactly the problem is, or what to try next? I'm pretty comfortable going in the case and replacing stuff myself, as long as I know what to replace! Thanks in advance!