Hi! I know I'm late, hopefully not too late.
I ran a psu calculator and, assuming you have a 1050, 2 ram sticks and 1 92mm fan, the estimated load wattage would be 277w. Your psu technically enough, but this means only 90% load, whereas you want the load to be no more than 70-80%. Apart from that, I doubt a 7-8 year psu can provide the rated wattage anymore. Not to mention proprietary psu's may not even have a 6 pin cable; graphics cards with 6 pin connectors (though for 750ti may not be vital, but still important) require more than 75w (tdp of 1050), your system will need even more than 277w.
Anyway, there are some good news. I've done some research and, apparently, your motherboard has a standard 24 pin connector (unlike some prebuilts), so you can upgrade your psu to something better. But, whatever you do,
do not cheap out with your psu. Stay away from $20 grey/greenish units that are not even rated 80+. There are good units for $60 (may vary in your region). Check a psu tier, like
this (preferrably first 3-4 tiers)or
this.