Heres an update:
Last night i disabled lots of unnecessary windows services, including windows theme, aero effects, windows update, window defender, media player, action center, and other unnecessary services. Immediately after doing this, i launched modern warfare 2, and i was able to play ~1hr worth of very graphically intensive missions without any issues what so ever. The frame rates were good, loading times were good, no stutters, no troubles. I then loaded up sc2 and was again able to play it on the highest settings for ~2hrs without problems. Heres the weird part: I quit sc2, and then relaunch the game and it crashes pretty much immediately, i re launch modern warfare 2, and it too crashed very soon. I have not made any changes between those 2 periods. This is just bizarre to say the least. But i have a feeling that this is not some kind of freak accicident. Because in my early attempts at fixing the crashing, i disabled AVAST anti virus and this allowed me to run game without problems, but when i quit the game and relaunch them the crash come back, even though i have not enable avast back on. At that time i thought of this as just a freak accident.
Further more, lots of people are suspicious of my PSU: 450W Corsair VX-450 Power Supply
Reasons why the PSU might be at fault:
- Its provide 450W, which is the bare minimum for my 5770.
Reasons why it might not be the PSU's fault:
- The technicians at my computer shop (maco technology) ensures me that the 450W PSU is able to run my system, heres their exact words:
"Here is the link that calculate the power. Your system should easily be able to run quietly and efficiently on the Corsair VX450W PSU
The Corsair 450W is sufficient to run your system."
- also the reviews on this PSU suggest it can actually deliver 570W despite its specs, see here:
- and also from the experience i decribed above, the PSU is able to power my system to play 2hrs straight without crashes, so this huge discrepency between crash times i.e. ~5mins vs 2hrs seems to suggests its not the PSU's fault. i.e the PSU should give out at consistent times.
Personally i am not sure which is true at the moment. Perhaps i should try running furmark and prime95 at the same time to stress the system, see if the PSU gives out. Or maybe i should downclock my vid card...
I should also be suspicious of windows 7
Reasons why windows might be at fault:
- The crash was gone when i disabled lots of its services.
- This is what maco technology believes in, here are their exact words:
"As AMD forum said this is a common problem with Windows 7
Reasons why it might not be windows fault:
- If it really is window 7 's fault, then shouldnt my problem be wide spread? i.e. every single 5770 user out there would have experienced this, and this doesnt seem likely.
What do you guys think?
And thanks everyone for your posts!