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    Undervolting limited to 1.05v, any way out?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by vassil_98, Nov 11, 2008.

  1. vassil_98

    vassil_98 Notebook Deity

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    My first Core 2 Duo is getting me increasingly frustrated. I always undervolt my CPUS and undervolted this one. i have T7200 in Dell XPS M1330. I read many posts here that people had their voltage locked at minimum of 0.975v yet, mine is locked at 1.05v. I searched quite a bit around but couldn't find the reason for this. I'm using the latest RMClock version. NHC does run on my Vista so I cannot look at its voltages.

    Can somebody save me 5 hours of research and tell me whether this is some new BIOS update that Dell did or just the way things are. Actually, I don't believe in the latter because when I let the CPU free (no management with RMclock) and measure its voltage, I can see it going down to 1.00v at times as well as throttling down do 800Mhz. With RMclock it never goes down to 800Mhz and 1.05v is the lowest voltage.

    another interesting thing is that the older version of RMclock showed a minimum voltage of 1.16v...Anyone with similar experience?
    Thanks
     
  2. Meetloaf13

    Meetloaf13 fear the MONKEY!!!

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    Have you selected "Mobile" mode?
     
  3. vassil_98

    vassil_98 Notebook Deity

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    Yes I have
     
  4. flipfire

    flipfire Moderately Boss

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    Can you show me screenshots of your RMclock pages? (CPU info, Management, Profiles, Advanced CPU settings)
     
  5. JohnnyFlash

    JohnnyFlash Notebook Virtuoso

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    My guess would be the limit the motherboard has for vcore. I'm stuck at 1.0375v and even when I used the rmclock hack, choosing a lower voltage did nothing.
     
  6. vassil_98

    vassil_98 Notebook Deity

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    Sure, here they are. 1, 2 and 3 show the undervolted scenario. In 4 I show the interesting case - the CPU is let free (no undervolting, no management) and it freely roams between multipliers - from 6 to 10. In this case it is at 8x with 1.00v!!! This voltage is not attainable when I apply manual multipliers. Neither is the throthling down to 800Mhz, which happens quite offen when the CPU is free (the upper left most graph)! I guess this is the issue. What should I do to make the T7200 go down to 800 Mhz?
     

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