Black Screen while Gaming, Bouncing performance and hicupps

[DarkOps0106]

Hi everyone,
my problem is :
screen go black gaming, gpu fan goes 100% and sounds cuts off after a while.
then have to reset to hear 3 shorts beeps and one long beeps then power off and on then works up normally
what i did :
1- researched alot of answers PSU is fsp hyper 700 watt for than enough for GPU (MSI RX480 8gb gamin X)
2- reseated the GPU into second slot, removed all other HDD, fans and DVD worked for awhile then same happens again.
3- tried to lower the GPU core voltage -56, power consumption -25 and forced constant voltage as mentioned in other threads ...... worked for mafia 3 until i finished the game but when playing frost punk the performance was really bad and had a lot of hiccups and the performance was jumpy (picture attached) and goes to black screen if i raised the graphics any higher.

is my PSU bad ?
is my GPU dead ? please i hope not
should i change from DVI (HP Compaq LA2205wg 22 inch monitor 1600*1050) to HDMI (Hisense 51 inch 1920*1080) and try ?
should reinstall fresh windows 10 or 7 ?
my Rig :
i5-4460
msi rx480 8gb gamin x
8 gb hyperx blue
gigabyte p85 gamin ver. 3
FSP hyper s 700 watt
1 micron ssd 120 gb
1 seagate hdd 250 gb
1 WD blue hdd 1 TB 7200 rpm
3 fans connnected 2 with red leds

 

[scout_03]

use hwinfo on sensor page and check temp with fans speed and voltages to stress your gpu use the gpu-z rendering option and check with hwinfo if fans speed up as temp raise to test psu use occt .

 

[DarkOps0106]

ok got them all but should i look for ? how do i identifies my problem ?

 

[scout_03]

temp fans speed and voltages post a picture of it here .

 

[DarkOps0106]

temp fans speed and voltages post a picture of it here .

https://ibb.co/c68TPo
https://ibb.co/madjx8
https://ibb.co/eyVgc8
https://ibb.co/e9S54o
https://ibb.co/cKZUVT
https://ibb.co/eQMnH8
these are 6 image of my pc idle without stress test
if i click on like here https://ibb.co/cvYL4o it goes black

 

[DarkOps0106]

i really need help i cant play a single game right now or render or do any thing and don't even know what to change

 

[scout_03]

check on picture 3 and 4 your pus 5 volts voltage only give 3 volts and the 12 volts is o.o48 volts and ass soon you start stres psu it black out system so try another psu this one if off specs on voltages output .