So I have started having these random PC freezes lately. After noticing carefully the events which trigger it, I found that running a game usually causes the said freezes. Here's the known facts -
My Graphic Card is a Galaxy GTS 450 shipped with factory clocks. Its 3 years old now and I dared to open the heatsink to find that the thermal grease was dry. I didn't touch the GPU or the grease, just cleared all the dust collected in between with a dry cloth and screwed it back. The current temps are 37C, maxing out to 65C when running BF3, if it runs that long.
CPU is the intel i5-2400, and last month I had checked with with the intel customer care while replacing my motherboard and both are fine according to them.
Motherboard is brand new from intel customer care, replaced in June.
RAM - Strontium 4GB 1333MHz bought back in 2011. Haven't run memtest yet, but i have doubts about this thing as even at idle, 1.5GB is being used.
PSU - 3 year old iBall sprinter 500W. Back in 2011 I was so desperate to get into PC gaming that I made some embarrassing moves, like not checking my PSU brand.
However, the thing was running fine up until now. I had cleaned the cooling fan too to make it work smooth.
HDD - I had a seagate barracuda up until last may when it failed and I replaced it with a Western Digital Caviar Blue 1TB.
So these freezes don't happen when I am watching videos on youtube or surfing the net, although opening multiple tabs can cause some slow downs, stutters and input lags. But on starting any game, it will at random times freeze, sometimes show a BSoD and then on restart it will show that Intel Boot Agent failed to detect a boot device.
Not unless I turn the power off and then on will I be able to boot my OS again.
Please help in troubleshooting process, willing to provide any reports you guys might need.
Yeah I know overheating of GPU is an issue, since it maxed out at 72C when I turned on SSAO, supersampling and LOD bias. I get playable framerates of 25-30 fps but the heat is palpable. Thing is I want to know if Cooler Master IC V1 thermal grease is good enough?
Here's the link to that product - http://www.snapdeal.com/product/cooler-master-ic-value-...
Also is there a possibility of RAM issue since on reboots the PC fails to detect a boot media?
PS - Now I have turned my settings way down my GPU doesn't radiate heat. Also I changed the Airflow of the case by repositioning my cabinet cooler to pump air directly to the GPU Fan. And there have been no BSoDs freezes whatsoever. So was GPU overheating the problem the whole time? Or will the issue persist?