Computer Hangs While Playing Game ( only games )

[Abammy]

My Pc Specs:
CPU: Intel Core 2 Duos 3.16 ghz
Motherboard: Zebronics G31
Hard Drives: WD 500 GB Blue Hard Disk
Graphics Card: GT630 Asus DDR3
Ram: Kingston 2x2GB ddr2 667 mhz
Power Supply: Iball Power Supply Model - JSW 252

When i run it normally it works perfect but when i open games it freezes when playing games around 1-2 minute , sometime it works fine with no freeze

when is freeze --
- it just hangs
- keyboard and mouse doesn't function and keypad light goes off,
- the Power LED stays ON,
- but the HDD LED turns off. and fans are rotating unless i press RESTART

( i have all updated drivers and thermal paste re-applied , my idle temp of cpu is 35-40 Degree And so the Gpu )

 

[DRagor]

Did you made any recent hardware changes? Was it working right previously? How old is motherboard and when (if at all) motherboard battery was changed? How old is PSU?

 

[Ecky]

Do you have any parts you can swap? My bet is either on your video card or power supply being faulty, but without spares to test with it may be impossible to know for sure.

 

[Abammy]

Did you made any recent hardware changes? Was it working right previously? How old is motherboard and when (if at all) motherboard battery was changed? How old is PSU?

PSU is 3 years old , but the only problem i'm facing is when i try to play games it works well sometime and the other time it freeze my computer , rest it works very well when surfing or watching videos

 

[Abammy]

Do you have any parts you can swap? My bet is either on your video card or power supply being faulty, but without spares to test with it may be impossible to know for sure.

my graphic card which is asus gt630 2gb ddr3 it was installed on my new computer which then later changed to this old computer due to i bought gtx1050 ti for my new computer , so on my new computer the gt630 was working very perfect and would able to play games as well , but when i switched it to my old computer it only hangs when i play games ,rest it works great when used for surfing or watching videos

 

[Embra]

Sounds like the PSU. I not supplying enough power under load. Looks like an HP power supply with low wattage.