Solved BF3 crashes after ~40min

[raemen]

My game keeps crashing but I think I have an idea on what is causing this. It may have something to do with RAM. I have 4GB installed but only 3.2GB usable. I followed the instructions on this thread to increase the RAM BF3 is allowed to use. This increased my gamplay from just ~2min then crashing to ~30-40min then crashing. But I want to know if I can increase the userva space to more than 2500MB? (Thread said to set at 2500 only)
What other trouble shooting should I try? Would changing page file/virtual memory size help and how would I do it?

Here is what Event Viewer says:
Faulting application name: bf3.exe, version: 1.0.0.0, time stamp: 0x4f26de8a
Faulting module name: bf3.exe, version: 1.0.0.0, time stamp: 0x4f26de8a
Exception code: 0xc0000005
Fault offset: 0x00107e60
Faulting process id: 0x11d8
Faulting application start time: 0x01ccee66718c8e36
Faulting application path: C:\Program Files\Origin Games\Battlefield 3\bf3.exe
Faulting module path: C:\Program Files\Origin Games\Battlefield 3\bf3.exe
Report Id: d1a4af15-5a59-11e1-872e-f46d0454f564

 

[cyclic]

In 32bit Win is limited to seeing 4Gb, but that's in total so you have 4Gb and then deduct your graphics memory and a couple of bits for the drives and motherboard, ending up with 3.2 Gb usable isn't that bad.

Can you post your system specs ? there can be so many contributory factors, personally I would think that if runs ok for say 40 mins and then crashes it may well be excess heat is the main problem. That error code can often be flaky memory, which could be affected by heat, or possibly just bust anyway.

 

[raemen]

In 32bit Win is limited to seeing 4Gb, but that's in total so you have 4Gb and then deduct your graphics memory and a couple of bits for the drives and motherboard, ending up with 3.2 Gb usable isn't that bad.

Can you post your system specs ? there can be so many contributory factors, personally I would think that if runs ok for say 40 mins and then crashes it may well be excess heat is the main problem. That error code can often be flaky memory, which could be affected by heat, or possibly just bust anyway.

I kinda knew about the amount of ram usable for a 32bit OS, but since the game started crashing later I assumed it was the amount of RAM that was causing this. I always keep an eye on temps. I have my CPU liquid cooled and my graphics card has a really good cooling system. I usually run the fans near maximum. But it could be overheat from other parts. I'll open the case and set up a table fan blowing air into the computer and see what happens.

Here are my system specs:
If you need more info I can give you them.

OS Windows 7 Enterprise 32bit
CPU AMD Phenom II X4 955 BE C3 @~3.2gHz
Motherboard Asus Crosshair V Formula (BIOS 1102)
Memory Corsair XMS3 Classic DDR3 2000
Graphics Card Sapphire Radeon HD 6950 2GB TOXIC (unlocked to 1536 shaders)
Sound Card SupremeFX X-Fi 2 (Built-in)
PSU Corsair TX750M
Cooling 2x200mm fan, CPU: Antec Khuler H2O 920, GPU: Vapor-X Chamber
Hard Drives 120GB OCZ Agility 3 SATA III SSD 2TB Iomega External HDD 500GB Coolmax external HDD

 

[raemen]

I found a fix here that allowed me to play way longer than 40min and without any crashes. So I'm happier now .
Just incase someone else looks into this, you can try and see if this will fix it for you: (Only for W7/Vista 32bit)
-Open up cmd
-Type in: bcdedit /set increaseuserva 3072
-Press enter and restart computer
Hope it helps anyone else who might have this problem.