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    G50vt-x5 Undervolting problem??

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by John-W., Oct 24, 2009.

  1. John-W.

    John-W. Notebook Guru

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    Hey guys, i just recieved one of these fine machines yesterday and i'm having fierce problems trying to undervolt the P7450 cpu that's inside it . I have successfully undervolted a T7200, T5500 and a T5300 already before with great results all round in 3 different Acer laptops, i'll give an idea here whats happening to me and hopefully some of you might understand it.

    1 - open orthos cpu loader
    2 - open HW monitor
    3 - initial readings from HWmonitor are
    ACPI
    THRM MIN 40C - MAX 42C

    C2D cpu P7450 MIN 53C - MAX 53C

    GPU 9800gs MIN 45C - MAX 46C

    HD MIN 40C - MAX 40C

    all the above are with nothing major running in the background i think, cpu is stating 0 - 2% usage with the niche oled display and checked aswell in task manager. Please note that i watched my laptop screen for 20 whole minutes and the ACPI, GPU and HD all went up and down 1 or 2c but the cpu didnt budge from 53C seems like its stuck or something.

    Now i'll stress test the cpu with ORTHOS
    Test - Blend - stress cpu and ram for just under 12 minutes
    Result =
    ACPI-THRM = 67C max
    CORE 2 DUO = Core 0 = MAX 67C
    Core 1 = MAX 70C
    GPU = MAX 56C
    HD = MAX 40C "no change"

    --------------------------------------------------------------------------

    I'm going to set up RMclock now from Flipfire's thread

    Default FID 6.0x = 1.0000v
    7.0x = 1.0625v
    8.0x = 1.1250v

    All above are after auto-adjusting VID's
    I have noticed that i cant go below 1.0000v in all my FID's and when i check the cpu info page on RMclock the core temp is giving a reading of 38C and not moving at all up or down it seems stuck just like on HW monitor with the reading stuck at 53C.

    Undervolt
    1 - 8.0x @ 1.1000v cpu max temps
    RMclock = core 0 = 48C
    core 1 = 50C

    HW monitor = core 0 = 65C
    core 1 = 67C


    Undervolt
    2 - 8.0x @ 1.0500v cpu max temps
    RMclock = core 0 = 49C
    core 1 = 50C

    HW monitor = core 0 = 64C
    core 1 = 67C


    Undervolt
    3 - 8.0x @ 1.0000v cpu max temps
    RMclock = core 0 = 45.2C
    core 1 = 47.8C

    HWmonitor = core 0 = 61C
    core 1 = 64C

    --------------------------------------------------------------------------

    Guys these figures seem very weird to me, after giving it some time i watched RMclock's temp figures and not once did they move up or down just like with HW monitor the figures seem paralysed, RMclock 38C for both cores with not even a slight fluctuation or half or quarter degree up or down and its the exact same with HW monitor being stuck on 53C.

    Another thing too is the fan is constantly on, not loud but its always on. I have the laptop now probably 36hrs and i have been on it for like 20hrs and not once did the fan go off for like a minute or so and spin back up again once the temps start to move up in the laptop.

    Now i will give it praise it is a tasty looking machine i really like it but the problem here with the undervolting or could it be a cpu problem i dont know to be honest is annoying me to say the least, so if any of you have an idea please help me out and i hope you can understand my post.

    Thank you.
     
    John-W., Oct 24, 2009
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  2. John-W.

    John-W. Notebook Guru

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    Any ideas from anyone please? :(
     
    John-W., Oct 25, 2009
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  3. John-W.

    John-W. Notebook Guru

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    Guys i checked my Bios settings and i noticed that DTS Thermal Management is disabled and Intel VT-D is also disabled and i checked with NB-probe and,

    CPU temps - Normal
    CPU fan - Normal and Low Quiet
    CPU speed - 38% will sometimes go up abit but never falls below 38%



    Anyone got an idea why the cpu speed is locked at 38% and would that be affecting my problems with trying to undervolt and would enabling both DTS Thermal Management and Intel VT-D help me in any way possible?

    Hope some person here can shed some light on this for me.

    Cheers, John.
     
    John-W., Oct 26, 2009
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  4. John-W.

    John-W. Notebook Guru

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    Bump :( ........
     
    John-W., Oct 27, 2009
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  5. Manic Penguins

    Manic Penguins [+[ ]=]

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    Hmm, your CPU is rather hot when idling, for comparison my P series CPU (P8400) is at 37C and 30C but with AS5.

    Hows about cleaning out the vent? Remove the base plate, hold the fan and blow a puff of air into where the hot air usually comes out of. Does any dust come out?

    TBH though, it's probably nothing to worry about, HWMonitor's temps are the correct ones I'm sure. When the warranty runs out and nothing has gone wrong I would advise investing in some Arctic Silver 5 :)
     
    Manic Penguins, Oct 27, 2009
    #5