The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    How low can your penryn go?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by d94, Mar 31, 2008.

  1. d94

    d94 Notebook Evangelist

    Reputations:
    16
    Messages:
    448
    Likes Received:
    0
    Trophy Points:
    30
    Using rmclock @ full speed and virified stability via orthos?
    got mine rockin .9750v :D
     
    d94, Mar 31, 2008
    #1
  2. XPS1330

    XPS1330 Notebook Deity

    Reputations:
    81
    Messages:
    967
    Likes Received:
    0
    Trophy Points:
    30
    .9750V at what X Multiplier?
     
    XPS1330, Mar 31, 2008
    #2
  3. flipfire

    flipfire Moderately Boss

    Reputations:
    6,156
    Messages:
    11,214
    Likes Received:
    68
    Trophy Points:
    466
    highest obviously

    penryns go very low compared to meroms
     
    flipfire, Mar 31, 2008
    #3
  4. EIN502

    EIN502 Notebook Enthusiast

    Reputations:
    1
    Messages:
    40
    Likes Received:
    0
    Trophy Points:
    15
    Only been able to take it down to 1.0125V at 12x. 0.9625V for 11x. 0.9500V for the rest. Wish there was a way go going lower but I have no option below that.
     
    EIN502, Mar 31, 2008
    #4
  5. flipfire

    flipfire Moderately Boss

    Reputations:
    6,156
    Messages:
    11,214
    Likes Received:
    68
    Trophy Points:
    466
    Penryns can go ridiculously low, but again not all chips are built equally. They all have different voltage tolerances

    If it shows 0.950 for the rest of the multipliers then your default voltages werent detected properly.

    The voltage should be in a curve, the lower the multiplier the lower the voltage vice versa.

    My complete undervolting guide will be up soon
     
    flipfire, Mar 31, 2008
    #5
  6. d94

    d94 Notebook Evangelist

    Reputations:
    16
    Messages:
    448
    Likes Received:
    0
    Trophy Points:
    30
    just your highest.
    my 12x is .9750, the one below 9.625, and the rest 9.500
     
    d94, Mar 31, 2008
    #6
  7. deputc26

    deputc26 Notebook Consultant

    Reputations:
    29
    Messages:
    227
    Likes Received:
    0
    Trophy Points:
    30
    T8300 .9875 at 12x but I'm running it alot higher cause I'm scared. Awesome thread! $10 says the new "p" procs from intel will be identical (save the bus) but with the voltages we're using now. Will be getting a T8100 soon and will post min. voltage for it too.

    Question. Can undervolting 'til you recieve errors reduce CPU life (I'm guessing it will slightly) I'm new to this game.
     
    deputc26, Mar 31, 2008
    #7
  8. flipfire

    flipfire Moderately Boss

    Reputations:
    6,156
    Messages:
    11,214
    Likes Received:
    68
    Trophy Points:
    466
    Theres no definate proof that undervolting can do hardware/cpu damage from instability. The heat from NOT undervolting will wear it out faster than BSOD's.
     
    flipfire, Mar 31, 2008
    #8
  9. deputc26

    deputc26 Notebook Consultant

    Reputations:
    29
    Messages:
    227
    Likes Received:
    0
    Trophy Points:
    30
    cool, thanks! I'd imagine that as the proc starts wearing out a little the lowest stable voltage will increase a little no? :cool:
     
    deputc26, Apr 1, 2008
    #9
  10. deputc26

    deputc26 Notebook Consultant

    Reputations:
    29
    Messages:
    227
    Likes Received:
    0
    Trophy Points:
    30
    T8100 crashed at .9625v at .975v it was stable just like my T8300.
     
    deputc26, Apr 8, 2008
    #10