1 long 3 short beeps asus

[Raj181198]

My pc just shuts off after using about 1 hour and after it makes 1 long and 3 short beeps only the display shuts off but the computer is still running. And after I switch off the power supply and again start my pc it starts normally anf again after 10 min my display shuts offf this is really annoying plsssssssssss help

 

[McHenryB]

That means that the graphics card can't be detected, which fits the other symptoms. If reseating it and/or cleaning the contacts doesn't help then it may be going bad.

 

[HEXiT]

for the beep codes it depends on the bios. ibm bios says vga issue
but the most likely its an ami bios, which is the most prevalent gives in home pc's
extended ram failure. in other words look at your ddr ram

http://www.computerhope.com/beep.htm
so check your ram first.
but to be sure check the gpu with gpu-z, check the temps of the gpu and the vrms. (vddc).