Arma 2 causing my desktop to go to sleep

http://answers.microsoft.com/en-us/windows/forum/windows_other-gaming/computer-goes-into-sleep-mode-when-playing-certain/677c624a-3cce-46d2-bea1-be5f52931fdb

This might help.

Hmm, I update my drivers manually So I dont know if the geforce expirience works or not.

It seems your version is the alst one (date matches), but there is a chacne a previous Driver would not have this issue (thats why I use manual updates: If a Driver is working correctly, updating it is not adviced, as It may cause problems especially in older games).

In thoery you could uninstall your video card drivers and install older version to see if it fixes the problem.

Unfortunatelly if you never did this sort of thing, It might be a relative challange, espeially because you need to make sure you make a "clean install" or The drivers might screw up more games, in wich case formating the PC is usually the only easy way to deal with the problem.

I personally do that each 6 months just to keep my PC clean, but most people dont like that kinda stuff.

Well, without running a few tests myself its a bit hard to narrow down the issue.
Especially because usually you would try another GPU you have laying around to test.

About damaging your GPU... its possible but unlikely: Normally if you damage your GPU the damage extends to everything the GPU is used for. This goes from ANY game you play to even web scrolling (as GPU nowdays also does some worht there).

When you say your PC goes to sleep mode you mean that you can actually wake it up or you need to restart it?

Most times if your PC shuts down itself is to prevent damage and its either trigerred at the Motherboard or the PSU.

You said you bought a 600W PSU but not the brand and model. Can you tell me that? There are power supplies, especially the cheap ones that are ver unreliable. The power supply, assuming its decent should have more than enoguht power.

But.. What about temperature? Can you install HWMonitor and see if you can record the temperature of your GPU in games? Highly unlikely it would overheat just in arma 2, but different games have different loads on the GPU (assasins creed used to be a killer in this field).

That GPU has a 1 6 pin connector. I know its a dumb question, but Is it connected to the PSU?

If your PC shuts down becosue the GPU is underpowered, yes it can damage the hardware, so avoid doing it if you can.


Finally, i checked a few sites and it seems like it might be a memory issue.
It appreas Arma 2 is very memory hungry (more than most games) and if you have a defective Ram module, its possible only arma 2 needs it.

To make sure this is not the issue, all you need to do is run memtest (http://www.memtest.org/)

You install it on a Cd/DVD and run it before windows starts.
It might take a few minutes to find a damaged module, but in my laptop it took less than a second.

If it turns out you have a bad memory module (usually you have more than one), you could test them separetly to find the one that is damaged.
Once this is done you can either buy a new module or use the one that is ok.

Glad I could help,
You could check the temps of your system running just in case (anything over over 85 C is hot enought to be worried, anything over 90 is a ticking bomb).

This is for CPU and GPU.

Thx for the selection .

Haha,

not sure what part of the world you live in but I can guarantee you that in the whole of Eastern Europe, Ukraine and some parts of Russia we get the trees look exactly this way in the Autumn. They've actually done a pretty good job with the graphics in the game.

Haha, well we are neighbors with your family in a way.

I'm Bulgarian originally. Been to Russia also and a few more countries in this part of the world. In Bulgaria we have 4 seasons but really distinct and each one beautiful in its way. Really awesome spring where everything turns green, the trees start to bloom etc. then a really hot summer - up to 42 degrees Celsius, then the autumn where all trees change colors -different shades of brown, yellow, red, orange and even purple - we refer to the autumn as "golden autumn". When winter comes we get plenty of snow and temperatures sometimes drop to - 22 (that's minus) Celsius. It's amazing.



Sadly I currently live in Scotland where everything seems like the longest, saddest, wettest and most gray eternal autumn/winter thingy but without the nice colors nor the big snow.