you have a amd athlon 64 x2 3800+ cpu running at 2ghz,
a 300gb HDD,
a geforce 8500gt video card
BUT no ram is listed,therefore you have NO RAM, get atleast 4gb(the cpu supports ddr2, the motherboard will also need to support the ram
BUT if you are getting crashes more often, I would suggest opening up the case and cleaning all of the fan heatsinks, especcially the CPU as the sins game series is VERY cpu bound.
harpo