Envy 17 3D SB Throttling fix.

Discussion in 'HP' started by Crimsoned, May 10, 2011.

Thread Status:
Not open for further replies.
  1. Crimsoned

    Crimsoned Notebook Deity

    Reputations:
    268
    Messages:
    1,396
    Likes Received:
    3
    Trophy Points:
    56
    Issue

    There's been quite a few Envy 17 SB that have signs and behaviors of throttling when the processor and graphics core are put under heavy loads. This seems to affect many, most, or maybe all Envy 17 SB laptops and maybe other Sandy Bridge laptops (some Asus have reported).
    General Behaviors outlined
    1. Processor remains near or at 798 mhz while both the processor and GPU are at 100% usage using Prime95 and Furmark.
    2. Processor remains at higher speeds while the GPU/ CPU are not at 100% usage in games however every few minutes produces momentary drops in FPS during games. Typically lasting less then 10 seconds.
    3. Very very few units exhibit major signs of throttling to the point of unresponsiveness. My contact at HP Research Team confirmed that there were a very small amount of units showing this behavior.

    Issue:
    1. Processor is throttled while GPU and CPU both are in use. This causes hindrances in performance. This is present in some, most, or if not all Envy 17 SB's laptops.

    How to find out if your are affected: Please visit my testing thread.
    http://forum.notebookreview.com/hp-envy-hdx/575817-hp-envy-17-sb-throttling-test.html

    Temporary Fix

    I found a fix thanks to a forum member, dkillone whom recommended using Throttlestop by just running it to help minimize the throttling. While the software did indeed better then the throttling 798 mhz to 1.4 ghz it showed the potential to perhaps stop the throttling.
    I began to test with several configurations and found 1 that helped to remove throttling in all but the heaviest of usages (Prime95+Furmark, and even then the results were more then passable).

    However this throttle removal came at a price. Very high temperatures with both GPU and CPU hitting 97c~.

    WARNING THE FOLLOWING FIX ALLOWS FOR HIGH TEMPERATURES TO APPEAR, I WAS HITTING 97C for the CPU and GPU. This test was done using the 9 cell battery which provides optimum air flow without the use of a laptop cooler.
    These are very high temperatures and while they may be safe we are unsure of their effect in the long term. Please use judgement, and stop if you see the temperatures going to 100c. Seek to remedy temperature issues with additional safe cooling supplements.


    Downloading of necessary files for performing, and confirming the fix.

    Confirming software (testing software).

    CPU Stress:
    Prime95 Large FFT
    32 bit: Prime95 (32bit) - 25.11 Download - EXTREME Overclocking
    64 bit: Prime95 (64bit) - 25.11 Download - EXTREME Overclocking

    CPU monitoring:
    CPU-Z
    32 and 64 bit: CPUID - System & hardware benchmark, monitoring, reporting

    Furmark, please scroll down and select the location (Europe or America):
    FurMark v1.6.5 download from Guru3D.com

    HwInfo32, for monitoring temperatures:
    HWiNFO32 Download
    Scroll down and select Self Installing Exe.

    Necessary software for applying the fix. This must be done every time you restart, however you can always go to "options" and check the box "start minimized" to have it start up automatically. If you are going with the start up option, also check the "AC Adapter On Battery Off" box this will turn off throttle stop when your on battery that way your battery life will not suffer.

    Throttlestop
    ThrottleStop - Performance Adjustment Tool for Core 2 / Core i CPUs - XtremeSystems Forums


    How to apply the temporary fix:
    1. Open Throttlestop- check to make sure Prochot is unchecked before proceeding.
    2. Hit the "Turn On" button.
    3. Under "Set Multiplier" please check the box and set the box besides it to "Turbo".
    4. Hit "Save".
    5. Minimize Throttlestop, and leaving it running for whatever activity you do not want throttling to occur in (typically games or high CPU/GPU intensive activities)

    To confirm the fix:
    1. Open Prime 95 and get it ready to run (see my testing guide linked above).
    2. Open Furmark and ready it to run (see my testing guide linked above on how)
    3. Open Hwinfo32 under "Sensors Only" then hit run.
    4. Open CPU-Z

    Lastly run Prime95 and Furmark both and check CPU-Z for the results.

    Enjoy!
     
  2. eba0922

    eba0922 Notebook Consultant

    Reputations:
    15
    Messages:
    109
    Likes Received:
    5
    Trophy Points:
    31
    Crimsoned I think you should also mention my results using a core i7 2630qm vs your 2820qm. My temps after 30mins topped out at 87-88C for the CPU and 82C for the GPU, a little on the safer side.

    Thank you for all your time and research, hopefully your contacts can get the right people involved and get us a permanent solution.
     
  3. Bobmitch

    Bobmitch Notebook Virtuoso

    Reputations:
    247
    Messages:
    2,038
    Likes Received:
    1
    Trophy Points:
    55
    Big THANK YOU to Crimsoned! Bios fix or not...this can certainly help if you need heavy CPU / GPU use at the same time. :D :cool:
     
  4. jywang

    jywang Notebook Evangelist

    Reputations:
    203
    Messages:
    517
    Likes Received:
    0
    Trophy Points:
    30
  5. Crimsoned

    Crimsoned Notebook Deity

    Reputations:
    268
    Messages:
    1,396
    Likes Received:
    3
    Trophy Points:
    56
    Nope I don't have a kill a watt however I put an order for my own multimeter (been borrowing the company's Multimeter XD), I should be able to pull loads there.

    That actually won't be a good way to test it. Power adapters will often draw more then the rated spec because their rated spec is not power from the wall but power supplied to the laptop.
    Due to inefficiencies between AC to DC conversion, there is typically a 20%~ loss of power. This efficiency is what we don't know. It could be 70%-90% you see.
    For example for the PSU to provide 120w it would require approximately 143 watts from the wall at 80%~ efficiency.

    Bleh.
     
  6. frendzzz

    frendzzz Notebook Enthusiast

    Reputations:
    0
    Messages:
    22
    Likes Received:
    0
    Trophy Points:
    5
    Thanks a lot Crimsoned for ur extraordinary efforts in this cause.HP ought to pay u coz u prevented so many returns.
     
  7. frendzzz

    frendzzz Notebook Enthusiast

    Reputations:
    0
    Messages:
    22
    Likes Received:
    0
    Trophy Points:
    5
    Woww.....seems like that is still better news for 2630 users like me.That means I can use this fix without any risk.
     
  8. Crimsoned

    Crimsoned Notebook Deity

    Reputations:
    268
    Messages:
    1,396
    Likes Received:
    3
    Trophy Points:
    56
    I recommend still using Hwinfo32 and testing the fix to ensure stability/safety as well as the efficacy of the fix.

    I wish HP would pay me, usually I charge for this type of labor lol.
     
  9. Killa Joe

    Killa Joe Notebook Deity

    Reputations:
    240
    Messages:
    1,648
    Likes Received:
    0
    Trophy Points:
    55
    Crimsoned, a very well made thread indeed. Ok, a couple of things.

    1. You mentioned in the previous thread that you would share your configuration..... this it? :confused: 3. Under "Set Multiplier" please check the box and set the box besides it to "Turbo".
    4. Hit "Save".
    Aren't there special tweaks or all you did was check the set multiplier box and turbo box?

    2. After we are done using throttlestop with our game....we just close the throttlestop program and that is it? Go on our merry way, and turn it back on whenever we play intensive games?

    3. If we don't play hard, or use the CPU/GPU to their fullest, therefore there is no need to turn on throttlestop, or can throttlestop be left on the laptop as long as its powered on? If we don't have GPU/CPU intesive programs it won't necessarily heat up the computer just because throttlestop is on right?

    Thanks again. ;)


    KJ :cool:
     
  10. Crimsoned

    Crimsoned Notebook Deity

    Reputations:
    268
    Messages:
    1,396
    Likes Received:
    3
    Trophy Points:
    56
    Nope that's it, no tweaking or anything else. I am still experimenting with other settings which do require special tweaking, however they are not yielding other results even if they did I would likely not publish them as the current fix is already hitting very high temps on the i7-2820QM.

    You minimize throttlestop, everything you restart you will have to do the same or having throttlestop start minimized (see my OP- I've revised it already). I will revise my OP.

    3. Nope there is no reason to use throttlestop if you don't use the CPU or GPU much. Most of Intels power saving modes are completely enabled (you will notice the processor will work at higher frequencies even when idle) even after my fix, of that I am pretty sure so there will be no overheating by doing this fix if there is no massive load on the GPU/CPU.

    It's perfectly safe for those who will not be using their laptops for heavy CPU/GPU activities, namely gaming.
     
Loading...
Thread Status:
Not open for further replies.

Share This Page