Entering sleeping mode

Aug 25, 2018
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Good Day guys! I need Help.
I bought a new RAM (4gb) then put it in my 2nd slot at mobo.
When i turn my PC ON the monitor says "Entering Sleep mode" then the fan will turn ON and OFF(like loop reboot?)

Mobo: Biostar H81MHV3
 
Solution
If you remove the RAM does it work OK? The sleep mode is nothing more than the monitor saying there is no signal so it's going to sleep mode, it's not from the computer. I'd guess you got the wrong RAM for your motherboard or it's bad.