My Conputer won't boot

[mingyu01]

My computer will not boot. When i turn it on, it gives me a long beep and no screen.
It happened right after i put the cound card in. Also i repositioned the hsf when i put the sound card in. I need help ASAP.

[elroy]

I would pull the sound card back out. Also make sure the heatsink/fan is plugged into the proper power connector. Try and boot it up. Let us know the results.

[originel]

when you remounted the hsf, did you clean it and reapply new thermal compound?

other than that elroy has a good idea.

[mingyu01]

Worked for the first boot but it just force rebooted and it dosen't work now same symptoms.. Long beep no post

[mingyu01]

It had this pad thing instead of the thermal compound, and its not overheating CPU temp is apporximatly 36-40C

[mingyu01]

i really need to use that computer

[pickel]

A loud single beep is your video card. You may have nudged it when you installed the sound card. Unplug the computer and re-seat the video card while removing the sound card. If it boots ok, install the sound card. Did you disable the on board sound ????

Check the memory slots also.

[mingyu01]

yes i disabled the onboard sound and i m not taking out my video card which has always been a problem (a old SiS315 card)

[mingyu01]

I posted after i repositioned my graphic card 3 times and it hadn't rebooted yet. Just a quick question what is the best sound card under 20 dollars? my onboard one is dead and i am using one from another computer. I need any sound card that has MiDi port and its full duplex