Is lowering the voltage of a T-Bird OK?

[RanDum72]

I have a 1ghz T-Bird (266fsb) running at 1.33ghz but with the voltage set at 1.650volts on the BIOS ( it comes out to 1.69v on the VIA hardware monitor). My mobo is an Abit KT7A-raid. Is there a negative in doing this? It seems to run very stable this way plus the CPU temps go down by 1 deg. Farenheit

 

[crawfish]

Lower voltage produces less heat, so it's a good thing so long as it runs stable.