PC Locking up during game play

[boyce]

I have a friend who is having problems with his machine locking up. When he restarts he gets this BCCode:

BCCode : ea BCP1 : 859B8Da8 BCP2 : 86066970 BCP3 : 85ADBC60 BCP4 : 00000001 OSVer " 5_1_2600 SP : 2_0 Product 256_1

He only sent me one mini dump file, see the attached.

Can anyone help me out with this error? I don't even know where to start.

Thanks in advance.