Powersupply doesnt work! eps12v atx12v need help with understanding

Shusil

Commendable
Jun 6, 2016
13
0
1,510
hello! i bought a Corsair CX750 powersupply and a Gigabyte GA-F2A88XM-HD3 mobo it just doesnt power up i dont know why i changed the powersupply with my other one 500w and it worked ... my question is why doesnt this new powersupply work with that mobo
 

Shusil

Commendable
Jun 6, 2016
13
0
1,510
Yes i used all the standard cables it just doesnt work it gives me a red led light and its gone instantly the fans dont even spin nothing but when i put it on another old f2+ mobo it works
 

Shusil

Commendable
Jun 6, 2016
13
0
1,510
yes it did have a cpu and dram in it i only tried it with putting the mobo loose inside of the case o.o it still didnt work that way do you think its shorting? i already swapped psu :( but i felt sad and wanted to know what could have been the cause :( i was so lost i still kinda am
 
power supply wattage ratings is the rating for the output of the untis. power supplys need to be match to the wattage that the pc is going to be using. ie cpu wattage and the gpu wattage. if the cpu is a 100w and the gpu is 170w.
you need min 270w on a power supply. that why people use power suply calultators to make sure the min watatge is met for there pc.