How low can I set CPU PLL voltage on a Intel Core i7 980X for 24/7 usage?

Sylver123 · 9 Oct 2010 at 16:04

Hi

I have read on hardware forums boards that lowering the CPU PLL voltage from the default 1.8v can greatly help stabilize a overclock without needing as much CPU VCore but I have also
heard that lowering the CPU PLL too much can kill the CPUs life span or damage it etc, so I was wondering how low should I lower this for 24/7 usage that should be completely safe?

I have read about people that have the CPU PLL voltage on this chip down at 1.45v for 24/7 usage but i`m still unsure that would be safe.

Thanks for responding.

Sylver123.

Sylver123 · 9 Oct 2010 at 18:02

-=Vect0r=- said:
How come lowering the CPU pll increases stability? This is new to me and thought the opposite was true. Have you a linky to educate me?

Having a lower CPU PLL is supposed to give you a advantige of having a higher overclock without needing as much vcore.

Sylver123 · 9 Oct 2010 at 18:06

Is having the CPU PLL at 1.45v or just above this for 24/7 usage completely fine on this chip or should I leave it at its defaults?

Thanks for responding.

Sylver123 · 9 Oct 2010 at 23:46

w3bbo said:
Completely fine. It's similar to how QPI affects stability. You need to find the sweet spot. For me CPU pll 1.6v whereas stock it's set to 1.8v.

Lowering the pll will not damage the chip, the only way this wil happen is if people set it so low they use excessive vcore or QPI to comensate.

Thanks mate for the straight answer.