Games crashing

[Dr Watling]

Ok i say games but i've only tried one so far

Anyway, i recently bought some new hardware for my PC.

I got a new Asus A8N - SLI SE motherboard
Using My current AMD 64 3000+ Venice processor
A new Sapphire Radeon X1600 XT 256MB GDDR3 gfx card to replace my 9800Pro 128mb
And a new 160GB sata hdd.

Now before on my old PC, i could run Battlefield 2 fine. Was on minimum settings but it worked.

However, when i run the game on my new system, i can get into the menus fine but when a game starts, the system crashes forcing me to reboot.

I noticed this happened before to me on my old system after i overclocked the CPU but it isnt overclocked on this system.
Its at 200mhz X9 and HT multiplier of 5.

These are the same settings as my old PC.

I thought maybe the cpu might not be getting a high enough voltage.
So i upped the voltage to 1.5

Still crashing.

A few other issues, when i log on to windows, the screen flickers. Never happened before.
I also had a problem with the memory. Windows kept saying there wasnt enough memory available to perform this task. I dont even know what "this task" is. It just appeared whenever i logged on.

So i set my ram at 333mhz instead of 400mhz which fixed that problem.

Anyway, can anyone find a solution to fixing my problem?
I've tried tests such as memtest86 to test my mem and Prime95 and there are no errors

 

[Nitestick]

the usual checks first, all correct drivers installed and up to date? when you say BF2 crashed when you loaded a game, when exactly do you mean and how consistently? i used to have BF2 crash as soon as it started trying to load a map, i had to re-install it.

 

[Dr Watling]

all correct drivers are installed and up to date.
Happens as soon as the map starts where you select your team and kit
The window fades in with the map n kit on and then it just stops and i have to reboot.

I cant Alt+tab out, cant close the program with Alt+F4, cant windows+D, nothin works.