Ibuild a pc. it was working fine it was fast, and amazing, got no signal..and tried to turn it off, then on, but when i turned it back on. it made a series of beeps.

one long beep, 3 short beeps, (a second pause) and then one long beep.

1.3.1
could ya'll me? i can't find a result online that could really me.

It might be the VGA.  

One long beep, 3 short beeps, (a second pause) and then one long beep is a sign that VGA is not detected CPU. Kindly double check if all connection to the motherboard (System Unit) is connected to all VGA pins including power supply. Hope it would help.

answer; i believe the correct answer is (psychological pricing);