Software computer issues

Just looking at your power suply seems pretty low.

Sent from my GT-I9505 using Tapatalk

Hmm did you put the fan on round the right way i know its a daft question and ive seen tests what dont really matter but it could be the course.Im not gonna disagree with anyone @nistleboy but shouldn't this be enough to run the setup @nodyahead1 has? or tho looking at this i aint sure? Power requirements for graphics cards | MSI HQ User-to-User FAQ ive built many computers but admittaly none with powerful graphics card as the ones ive built have mainly been for multimedia and light gameing.
@nodyahead1 how old is this setup? as it could well be you might need some new thermal.

the psu does look on the low side . what make of psu and also what is the 12v rail on it
most psu's are rates confusing 12v x 30 amp = 360 watt and 5v x 28 amp =140 watt
there is your 500 watt psu . the problem lays when you use to much on the 12v rail

PSU-Calculator Expert / Netzteil Rechner / Power Supply Calculator

to see what your system will draw just turned on

That temp is fine for your gpu .

Mouse lag (input lag)

Do you play with Vsync on ? Turn it off .

What monitor are you using ?

What mouse ? (Adjustable poling rates )

Turn off all mouse acceleration in windows I can link you reg files to do this if you are not sure how )

Oh and are you sure you didn't update your drivers from nvidia to creat this lag ?

Although I can see people's points about your psu. It all depends on it's quality I have ran an i5 2500k and an r9 280x both overclocked with a 460w psu without any issues purly because it was a quality unit rated over 90% efficient .

I would maybe check you didn't damage the CPU pins while changing the fan asswell and did you apply new thermal paste in the correct mana ?

I know a couple of people have mentioned about the thermal paste and I know it may sound like something too small an issue, but it is worth considering this :-

"Air makes a very effective heat insulator, so for the heat to get from the CPU to the heatsink, the heatsink must be installed without any air gaps whatsoever. Even an air gap of a few microns can slow down heat transfer.
Since it is virtually impossible to make a CPU and heatsink that fit together perfectly, a thermal paste or grease is sandwiched between the two. This non-conductive material is designed to fill any air gaps, ensuring the best possible mechanical connection between the two. The better air gaps are eliminated, the better heat flows out of the CPU and into the heatsink."