[SOLVED] My GIGABYTE GA-78LMT USB3 no display

[Ezynaby]

So 2 or 5 weeks ago I bought the motherboard. And after I assembled it, it started smoothly. I am stupid, I tried to install the DDR2 RAM on the DDR3 socket (I installed the DDR2 RAM only on the end of the RAM socket.) and I forgot to remove the RAM. and the computer turns off and turns on many times. and I pulled out the ram. then I turn on my computer the computer has no display or no signal on the monitor. I tried resetting the bios then it couldn't. I have cleaned every component but it still won't turn on. I tested the DDR3 RAM on the DDR3 motherboard (unused motherboard) and the result is all the RAM works. and I also tried to test the GPU and the results were still 100% functional. Please help me I want my computer back to normal again. I had painstakingly saved up for that motherboard, gpu, and ram. please.
My spec are:
MB:Gigabyte ga 78lmt usb3
Processor:Amd phenom II x6 1055T
Gpu:MSI twin frozr nvidia geforce gtx 660
RAM: 5gb
PSU:Corsair CX750
Ssd: WD green 240GB
Cooler deepcool Gamerstorm gabriel.
I tried my best for fixing that.

 

[popatim]

Most likely you have only damaged the motherboard. 😪