hp 6200 pro mt

I have a PC HP 6200 pro mt, when they sent it to me it did not give image but the board gave the cpu error beeps so I reinstalled the processor and it worked normal, but since about 5 days ago every so often (when I turn it off and turn it back on the next day) it starts to have the problem of...

Hi. I have an 6200 Pro MT with a proprietary PSU rated at 320w, 80+ gold. CPU: i3-2100, 65w tdp GPU: integrated graphics (HD Graphics 2000) RAM: 2x2gb DDR3 1333mhz Fans: 2x92mm, one for exhaust and one for the cooler. Cooler: stock (HP?) cooler (basically a fan in a tool-less shroud connected to...