2670qm multiplier stuck at x8

I had horrible performance today, checked the cpu and it was running at 800 MHz, 99.78*8.0, instead of 2.2-3.1 GHz.
I havent changed or installed anything since yesterday when it was fine. Max temps 55, energy settings high, cord is plugged in, vents and fins thoroughly cleaned one week ago, rebooted, checked BIOS (stock, no info there), tried ThrottleStop with no luck although Im not sure how to use it.
Help?

 

Have you tired running some type of CPU stress test to see if that bumps the clocks up?

Sent from my SGH-T999

 

No. I tried Throttlestop again and unchecked BD PROCHOT and the speed ticked right back up.

As I understand it this is a feature that throttles the cpu if anything else gets to hot? Is this safe to untick, will my cpu still throttle properly if it gets overheated?

I did a quick test ingame and my fps actually seemed to be better than before Will have to test more and keep an eye on the temps.

 

hm interesting. please report back with some comparison numbers

Sent from my Galaxy Nexus using Tapatalk 2

 

Yes, BD PROCHOT throttles the CPU when it detects other components that are overheating, in order to reduce the overall heat in the system. Sometimes useful if the GPU and CPU share heatpipes.
Otherwise, totally useless, keep it disabled. It has no place in a Clevo machine.

 

Yeah sometimes when you run on battery power and use ThrottleStop, even when you run AC power again ThrottleStop will keep the CPU multiplier at low. You can usually just force turbo and then uncheck it and that will let it run normally.

 

I only installed ThrottleStop when it had already throttled so I don´t know why it happened in the first place. But thats good to know.

I´ve done some testing. I have no logs to back this up (how do I best log cpu load, temp and freq?), this is by keeping one eye on the framerate. Usually when I play Planetside 2 my cpu is the bottleneck and I get 26-30 fps in the big biolab fights. It´s not overheating, max temp 69 degrees. The gpu is still under stress though, often 90+ load and 85-86 degrees max temp.

So I went to a biga$$ biolab fight and guess what, 38-42 fps, still cpu bound. Thats a 25% increase if your modest, more like 40%. More importantly for me, it pushes me from the dreaded "playable but stuttering" into "playable borderline smooth". The temps were the same too: 69/85 on the cpu/gpu resp.
It seems it really can make a difference. I guess the system temp got past a point where the cpu started throttling a bit and since I´m cpu bound in that game it really showed in fps. Im gonna follow this some more and see if it wasnt a fluke, and to keep an eye on the temps.

In the meantime, yay :thumbsup: Went to fix a problem and ended up with increased performance. Najsman happy!

 

You will be happy to know that if your CPU core temperature gets too hot, it will still throttle whether BD PROCHOT is checked or not in ThrottleStop. No software can interfere with your CPU looking after itself. If it truly needs to throttle, it will throttle.

If you are being forced to the 8 multiplier with a minimum load on your CPU with BD PROCHOT checked then that tells me that there is a problem on your motherboard. It could be a bad temperature sensor on your board. PROCHOT can also be triggered by power consumption or a bad sensor in this area or a power adapter going bad. If your laptop is still under warranty then ask them to fix it. If the warranty is over then I guess you will have to continue to use ThrottleStop to enjoy your laptop at the Intel intended speed. ThrottleStop is a very light weight program so having it minimized to the system tray will never be noticed during normal use.

ThrottleStop has an excellent data logging feature. Simply click on the Log File option at the bottom left and it will keep track of your CPU temperatures and performance. You can log with and without BD PROCHOT checked off to compare CPU speed.

smellon: Make sure you have EIST enabled. ThrottleStop needs this enabled to properly control your multiplier.

 

After I unchecked BD PROCHOT the speed immidiately went up. I didn´t actually hit Turn On or minimize to tray, only unchecked and closed ThrottleStop.
I just booted it up on battery and the multiplier was 8 and 13. I plug it in and it jumps to 31 (and 28 and 30). Plug in and out repeatedly and the multiplier jumps between 8 and 31. As far as I can tell Throttlestop isn´t running, so right now working as intended I suppose.

Concerning the performance in PS2 it was a little bit too good to be true. Later I found bigger fights which dropped my min fps to 30-35. Still an increase from 26 though. Also, max temp went from 69 to 77.

 

Have you double checked your power management settings? Check your 'maximum processor power state' for battery and plugged in, it might be on 50 rather than 100. I can't remember if default it allows 100% on battery. You can use 100% on battery though.

 

Toggling BD PROCHOT works immediately in ThrottleStop.

If you use ThrottleStop to disable the BD PROCHOT signal path and then exit ThrottleStop, BD PROCHOT will remain disabled. Depending on your motherboard and bios version, you may be able to reboot and BD PROCHOT will still be turned off. ThrottleStop toggles a single bit in the CPU and this bit might not get reset by the bios during a restart.

If you use the Windows Shut Down option then your CPU should get reset to its original default values. I don't have access to enough different laptops or bios versions to say what any particular laptop will do during a Restart or a full Shut Down. Some users with Core 2 laptops and Extreme CPUs had to do a Shut Down and then had to pull the battery from their laptop to get the maximum multiplier to reset to its default value.

This has nothing to do with power management settings. As soon as BD PROCHOT is unchecked, the CPU immediately increases in speed. That proves where the problem lies. Something on his board or his power supply is sending a signal to his CPU telling it to throttle to the minimum 8 multiplier. When you use ThrottleStop to disconnect or block this signal, the CPU is able to run at its normal speed.

It might be a good idea to leave ThrottleStop running. It can take care of other throttling issues as well as this one. If you don't want to run ThrottleStop 24/7 then there is an INI option you can set.

ExitTime=5

This will force ThrottleStop to exit 5 seconds after it starts. This way you can use ThrottleStop to disable BD PROCHOT and then it will immediately exit so you can forget about this issue. Post #2 in the Guide shows you how you can add ThrottleStop to your start up sequence using the Task Scheduler.