- do you have only Dell drivers installed? (sometimes Nvidias latest drivers conflict with some dell parts)

- have you installed all the latest windows updates, including the 8800GT update?

- have you checked the windows problems and solutions in control panel to see if its a hardware/software issue?

- have you overclocked the system? if so set it to factory default

- is your GPU overheating? install rivatuner and log the temps to see what it gets to when gaming

- does it only lock up playing games?

- do you have the latest dx9/dx10 update?

- do you have the latest patches for the games installed?

- does the problem occur in safe mode?

- is your cpu and motherboard overheating? is the colling sufficient (fan control)?

- have you run the Dell system checks (when starting the machine press F12)?

- have you disabled all startup programs to see if there is a conflict?

- run a diagnostic on the hard drive to see if there are bad sectors or missing links

 

there are many, many things to try out - have you got an old graphics card that you could swap out for the 8800GT to see if its causing the problem?

 

if none of the above solve your problem, call tech support (xps) and they will no-doubt send out a tech to swap your 8800GT and maybe your memory........

 

 

 

Thanks

 

I ran a check on all the tempurater of all my hardware and found that my GPu was running very hot(129c).

 

I called the tech desk and they are sending a technition to replace the gpu

 

Thanks