Laptop Forums and Notebook Computer Discussion - View Single Post - [To all newer AMD Turion owners]Strange power handling on hp dv5

2.0™ · 04-20-2009, 07:06 PM

I can't get CPU-z to report the 1.2V in high performance mode. But the AMD power monitor flip-flops between 1.012v and 1.2v a few times a second.

Here's something interesting though; loading the CPU to 100% utilization using wprime, the voltage caps @ 1.013V and never peaks into 1.2V as according to AMD power monitor.

Same if I set wprime to 1 thread.

Playing an MP3 or video through Win Media 11, the frequency of crossing into 1.2V is reduced.

Running an anti-virus scan with a sustained CPU utilization rate above 33% also prevented the voltage from crossing into pstate6, 1.2V. Same with doodling in ArtRage which while doodling maintains a CPU utilization rate above 33%.

So I suppose the conclusion is that it only goes into P-state6 (1.2V) at relative idle and not under any appreciable load. Must be by design.

I wonder if those who have not undervolted experience this jump to 1.2v, Pstate 6?

04-20-2009, 07:06 PM	#9 (permalink)
2.0™ NBR Macro-Mod® Join Date: Jul 2007 Location: Used York Posts: 6,484 Rep Power: 43	Re: [To all newer AMD Turion owners]Strange power handling on hp dv5 I can't get CPU-z to report the 1.2V in high performance mode. But the AMD power monitor flip-flops between 1.012v and 1.2v a few times a second. Here's something interesting though; loading the CPU to 100% utilization using wprime, the voltage caps @ 1.013V and never peaks into 1.2V as according to AMD power monitor. Same if I set wprime to 1 thread. Playing an MP3 or video through Win Media 11, the frequency of crossing into 1.2V is reduced. Running an anti-virus scan with a sustained CPU utilization rate above 33% also prevented the voltage from crossing into pstate6, 1.2V. Same with doodling in ArtRage which while doodling maintains a CPU utilization rate above 33%. So I suppose the conclusion is that it only goes into P-state6 (1.2V) at relative idle and not under any appreciable load. Must be by design. I wonder if those who have not undervolted experience this jump to 1.2v, Pstate 6? __________________ Brand new, secondhand. Dividing by zero since 1971.