Computer doesn't boot after adding new ram

[Ummood]

Hello guys, as I said before I had some graphics card issues last months and yesterday I replaced it with a Gtx 750 ti so I thought 4 gb ram is not enough for a 2gb vga card and bought 4 gb Corsair Vengeance 1600 MHz CL9 9-9-9-24 1.5 V. I had 2 x 2 gb Corsair XMS 1600 CL9 9-9-9-24 1.5 V before upgrade. Now it doesn't work with new ram, but works great with the old ones. You will say "mixing is bad" of course, I know that but when I only installed 4gb vengeance system and started, it turned on for a second, fans were spinning but then power led went off. I tried only updating my bios

Gigabyte P43T-ES3G
Xilence red wing 580w
Intel q8300 2.5 GHz
Msi Gtx 750ti tf 2 gb 128 bit
4 gb (2x2 gb ) Corsair XMS 1600 MHz
2 tb seagate sshd

 

[unknownofprob]

voltages are fine, the board can support both.

 

[Ummood]

Now this is interesting usb ports are working but nothing happens when I pressed power switch.

 

[Ummood]

voltages are fine, the board can support both.

I wanted to say thanks again, here's the news :

First, they checked my system at store, it didn't work as usual. A guy brought a Msi g41 or something like that and switched my p43t-es3g. Everything worked fine with one of my old Rams. He tried the other one and same problem occurred again, he said this ram is faulty. I said please try vengeance on g41 because it has only two ddr3 slots. I could use that ram only. After he plugged vengeance, that mobo couldn't boot again. So I returned it. I think my processor was damaged because of corsair's vengeance. I bought a gigabyte z97x-ud3h and wanted to buy i7 4770k. Unfortunately they didn't have that so I had to buy i7 4790 (without "k"). I know you can say that was a mistake but I think I'll never overclock anything on my system because I live in a very hot city and don't want any troubles now people say " you should've bought with a i7 with "k" " what do you think about that?

 

[Ummood]

I forgot to say I'm using my old Rams now on my new system, I was right they are fine

 

[unknownofprob]

Both sticks were faulty?

 

[Ummood]

No, only the new one was faulty, like I said when he installed Corsair Vengeance on g41 motherboard, same thing happened and it couldn't boot again. Now my system works better with i7 , I can feel the power

 

[unknownofprob]

glad to hear.

 

[Ummood]

Thank you, I appreciate your help