Should be fine.I would only worry if you start getting artifacts or lock ups,otherwise I would not worry.Enjoy and Goodluck.
Dahak
AMD X2-4400+@2.4 S-939
EVGA NF4 SLI MB
2X7800GT IN SLI
2X1GIG DDR IN DC MODE
WD300GIG HD
EXTREME 19IN.MONITOR 1280X1024
ACE 520WATT PSU