The monitoring table will tell you which method your laptop is using.
Your laptop will use either of these throttling methods but it is extremely rare for a laptop to use both methods. You do not need to check both types of Clock Modulation. These CPUs will automatically use one of the low power C States when idle so slowing the CPU down to a crawl is usually not necessary. On a P8400, you probably don't need to use the ThrottleStop - Power Saver feature. BD PROCHOT is completely separate from that and can be disabled. Your CPU will still throttle to protect itself if it gets too hot. If a sensor has gone bad, it might be using that method to send a signal to your CPU which is causing throttling. For normal use, using ThrottleStop while on battery power should be OK.
It is just bad design on Dell's part.īe careful when using ThrottleStop when on battery power. To be honest, your temperatures seem fine. I am not sure if this type of throttling is triggered by heat or by power consumption. Glad to hear that another Dell Latitude has been saved from the scrap heap. There is also some more information in the ReadMe file which is included with the latest version. If you cannot get this figured out, let me know. Unfortunately all of the pictures disappeared from ImageShack. Http //threads/the-throttlestop-guide.531329/ The ThrottleStop Guide has some information about adding ThrottleStop to the Task Scheduler so it starts with Windows. Do not check that if you do not want ThrottleStop to minimize to your Task Bar. In the Options window you have Task Bar checked. Https /There's an updated version with a few more features. Screenshot 2: http //cawffj1bf/CPU_Throttling.png Screenshot 1: http //l5npvvnnn/Normal_usage.png Screenshot 2 - after another 3 minutes (around 32 minutes since power-on), it throttled back to 0.77Ghz (usually it throttles in 5 steps 1.89 -> 1.56 -> 1.16 -> 0.77 -> 0.66).Īfter I closed the Youtube page, it went back to 2Ghz+, and the temp goes back to under 45 degrees very fast.Īny ideas? Can I move this throttling point to at least 55 degrees? It's very, very annoying, especially because it's a laptop, and things like cooling pad or cooling stand isn't a solution.
Screenshot 1 - 28 minutes of Full HD Youtube content, and not a single CPU throttling (I wanted to say victory!) There was barely some dust on the heatsink that was gone with just a simple air blow, and here are the performances.
I've listen to your advice, and open the laptop. The Intel HD Familly video card is on-board, just like the nVidia Quadro one, so I will replace the motherboard with the nVidia Quadro model.
The P9900 (3.06Ghz), is the most powerful, with just more 10W TDP. I can replace the CPU with 3 other Intel models with the same soket as mine (2.7Ghz/2.9Ghz and 3.06Ghz model).
Would this make a good combination and solve my problem? The P8400, is always at 70-90% utilization on Youtube 1080p videos, and I think it's a little bit weak for such intensive task or multitasking in general. I've got the best price possible for a swap with the P9900 3.06Ghz 6MB cache CPU and a nVidia Quadro NVS 160M motherboard. My CPU is a Intel Core2Duo, P8400 2.27Ghz CPU. The idle temp is 42-43 degrees, and the fan is barely running, 44-47 degrees with normal running, and only on Full HD Youtube videos it goes to 50+, and as soon as it hits 52, it goes into CPU throttle, and as I hear it, the fan is around 80% speed (very noisy). I still got the CPU throttling around 52 degrees, and it goes back to normal when it hits 45-46 degrees, and the fan is running at full speed. This thing has been a problem since I've bought the laptop from someone, and by replacing the thermal paste and blowing out the dust from the heatsink, I've made a small improvement (from 6-7 minutes of Full HD Youtube content, to 10+ of Youtube Full HD content), so the problem is somewhere else. Yes, I've downloaded OpenHardwareMonitor, and reading are 100% accurate, just like RealTemp read. Thank you for your reply your help means very much to me.