Problems with my mobo GA-78LMT-USB3 and Corsair Vengeance

[manjoo]

Hi,

Recently i have upgraded my PC so here are the specs,

1) AMD FX6100
2) Gigabyte GA - 78LMT-USB3
3) Corsair Vengeance 1x8gb with heatsink
4) Seagate HDD 1TB
5) Intex 450w PS

I was able to install windows 7 and starting it was working like a charm and later on the next day i noticed that i am getting a blank display no beep sound and not even motherboard logo. PS seems to be fine.

I tried removing the RAM and insert it again it was working fine, but the problem occurred again lags if anything is loaded then mouse stopped responding.

Everytime i can't keepon changing the RAM slots .

As my friends say that i should have bought 2x4GB instead of putting single stick 8GB memory. Do you think my RAM is not compatible with this mobo.

After investing so much on this i am not able to make use of it properly.

Please advice on this how do i proceed further.

Thanks,
Manju

 

[manjoo]

Is it because the RAM which i bought is having memory standard of 1600Mhz but my mobo memory frequency supported is 1333 + (O.C)

my doubt is mobo supports 1333 o.c so will 1600 ram will automatically downgrade itself to 1333 or lower than that..??

These things need to be set manually??