Crysis and the 4870 (first time PC builder)

capp1688

Distinguished
Jul 20, 2009
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Hi guys!

My computer:
-GIGABYTE GA-MA790FXT-UD5P
-AMD Phenom II X4 955 Black Edition
-G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)
-Sapphire HD4870 1G
-Corsair 750W PSU
-Windows 7 RC (32-bit)
-Antec 300 mid tower (both 120 mm fans set on high)

This PC is brand new (built it a couple of days ago), and this is the first game I run on it (as well as the first PC I've ever built).

I run this game on High settings...runs smoothly...until a couple of hours later, after many deaths, when I click to respawn, my comp restarts...this happened a few times until I got near the end of the game and then the game straight up crashes every time ( I have to control-alt-delete out)!

My question: Is this a hardware problem, or just a bug in the game? And most importantly, is there anything I can do?

Please help me! I'm panicking here!