No, you just need a stable and adequate power supply for your components.
Please elaborate on your issue. Might be a completely different reason for you.
Thx for the feedback.
as i said, i can play everysingle game in my pc.
But, coh, somethimes i cant even finish a round.
My pc crashs in 15 or 25 minutes.
Some days i can play for 5 hour and no problem
Sorry for the english.
Core i5
8Gb Ram DDR3
Radeon 7970
SSD 64gb
1tb HD
Gigabyte mother borad (don know which)
and coirsair 800gs power suply.