I'm going to first state the hardware my computer consists of:
Intel DG41RQ Motherboard
2 x 1GB Kingston RAM cards
Intel Dual Core E5400 Processor at 2.7 ghz each
Realtek LAN Card (Recently Installed)
I rely on the inbuilt soundcard and onboard graphics.
So about 2 days ago when I booted up my computer I realized that I didn't have internet. Apparently the light wasn't blinking on the inbuilt LAN port. (Nothing wrong with cable or router) So I opened up the computer and just slightly pressed on the inbuilt LAN port box, and installed the External Realtek LAN Card I had in my posession. And now just for the sake of the testing it out, I inserted the cable into the inbuilt LAN port and it worked!? However, I re-inserted the cable into the external LAN card for safe measure.
Today however, I was playing Nimbus (video game) and when I finished playing the game, I realized I didn't have any sound afterwards. I couldn't listen to music or practically speaking there was no audio at all. So I switched off the computer twice and put it on again, and I still didn't have any sound at all. I was confused now, since the inbuilt LAN port is near the audio ports where I plug in my headset, so I took out the LAN cable and inserted it into the inbuilt LAN port and it worked. I took it off again and put it into the external LAN card port and all of sudden while the connection was being established my computer froze. I manually switched it off but it didn't come on at all afterwards.
Now I'm using Windows XP and as my anti-virus I used Avast Free Edition (updated) and I'm not really sure why my sound went off all of a sudden, whether the cable switch had anything to do with it, whether inserting the external LAN card had anything to do with it and mainly why my computer isn't booting up anymore at all? Are maybe the drivers corrupt? Anything wrong with the onboard video?
I opened up the computer and powered it on and both the processor fan and the PSU fan were working as well.
I'm thoroughly confused as for what to do and any help would be greatly appreciated! Thanks...
PS: When I power on the computer now I only receive one beep. I believe it was two earlier when it was working well.