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  1. #1
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    Default T61 infinite restart problem [solved!]

    Hey !

    I was trying to "undervolt" my thinkpad this morning when it suddenly shutted down after hours of stressing.
    I tried many times to power on the computer after that, but it was restarting again and again (the lights went on and off), even before I could see anything on the screen. I couldn't access to the bios. *sad *

    Well, 5 minutes ago I tried again and this time it worked \o/. The thinkpad started normally like nothing happened. And I didn't do anything special compared to the other times I tried. *happy *

    I don't have any explanation about this whole thing, and now I wonder if I ever will shut down the computer again, just to be sure : D.

    In the end I post this thread just in case it would happen again... did you ever encounter a problem like this with your thinkpad ? Do you know how to solve it (or do you know how the computer solved it by itself ? xD).


    Thanks !

    EDIT : problem solved, go page 2 o/
    Last edited by Leimi; 14th November 2008 at 01:06 PM.
    Lenovo Thinkpad T61
    C2D T7300 2Ghz - 14" WXGA+ - Nvidia Quadro NVS 140M - 3GB DDR2 - Seagate Momentus XT 500GB

  2. #2
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    Default Re: T61 infinite restart problem

    Great, while I was writing this, the computer shut down again (well, it seems like just the screen shut down), and now it doesn't want to start anymore (it starts again, and again...)

    Any ideas to help ? xD

    Thanks !
    Lenovo Thinkpad T61
    C2D T7300 2Ghz - 14" WXGA+ - Nvidia Quadro NVS 140M - 3GB DDR2 - Seagate Momentus XT 500GB

  3. #3
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    Default Re: T61 infinite restart problem

    How did you undervolt your computer?
    - ThinkPad T400: Intel C2D P8600, ATI HD3470 + Intel 4500, 4GB DDR3, 320GB@7200, DVD-RW, 14.1" WXGA+ LED, Intel WiFi 5300, BT, 6-cell battery, Windows 7 Pro x64
    - Custom Desktop: Intel Core i7 920 D0, ASUS P6T Deluxe
    , 12GB OCZ DDR3, ATI 5870 Crossfire, 6TB@7200, Corsair 1000W PSU, NEC 2490WUXi x2, Silverstone TJ-09B, Windows 7 Pro x64

  4. #4
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    Default Re: T61 infinite restart problem

    I followed the undervolting guide in the hardware section of the forum step by step. It crashed when I was stressing the cpu at 1.1125v if I remember correctly.
    Lenovo Thinkpad T61
    C2D T7300 2Ghz - 14" WXGA+ - Nvidia Quadro NVS 140M - 3GB DDR2 - Seagate Momentus XT 500GB

  5. #5
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    Default Re: T61 infinite restart problem

    First off, I would try to return the voltages to default. Your particular CPU does not like to be undervolted too much. If your notebook does not boot up, remove the battery and the power adapter from your notebook (when off). Wait a few seconds, then press the power button a few times. Wait a few seconds, then put the battery and power adapter back in your notebook. Hopefully it should turn back on.

    If you still want to undervolt, be more conservative.
    - ThinkPad T400: Intel C2D P8600, ATI HD3470 + Intel 4500, 4GB DDR3, 320GB@7200, DVD-RW, 14.1" WXGA+ LED, Intel WiFi 5300, BT, 6-cell battery, Windows 7 Pro x64
    - Custom Desktop: Intel Core i7 920 D0, ASUS P6T Deluxe
    , 12GB OCZ DDR3, ATI 5870 Crossfire, 6TB@7200, Corsair 1000W PSU, NEC 2490WUXi x2, Silverstone TJ-09B, Windows 7 Pro x64

  6. #6
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    Default Re: T61 infinite restart problem

    Ya reset CMOS like pacman said.
    Thinkpad x200: Win 7 x64, P8400, 4gigs ddr3 (crucial 2x2gig), 80gig Intel X25m G2/64gig Samsung SLC SSD, Intel wifi5100, 9cell, fingerprint reader, BT, NMB keyboard, ultrabase driving HP LP2475w (displayport/dvi)

    Guide to adding a bluetooth module in the x200

  7. #7
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    Default Re: T61 infinite restart problem

    Thanks for the answers o/

    But the fact is I can't make it; the computer won't boot up even when I do what you say _.
    I'll try in a couple hours (It booted up right earlier after not doing anything to it for a while).

    I hope I didn't ruin everything \o/
    Lenovo Thinkpad T61
    C2D T7300 2Ghz - 14" WXGA+ - Nvidia Quadro NVS 140M - 3GB DDR2 - Seagate Momentus XT 500GB

  8. #8
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    Default Re: T61 infinite restart problem

    Hi,

    Like I thought I managed to boot up the computer after few hours. I put all the voltage settings to default in RMClock and uninstalled it. I restarted the computer but after around ~20 minutes it crashes again. I always have to wait a few hours to be able to boot it up again.

    Any ideas ? _

    Thanks !
    Lenovo Thinkpad T61
    C2D T7300 2Ghz - 14" WXGA+ - Nvidia Quadro NVS 140M - 3GB DDR2 - Seagate Momentus XT 500GB

  9. #9
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    Default Re: T61 infinite restart problem

    Sounds to me like a motherboard issue. What you could do is boot the system with only 1 stick of RAM and see if it still crashes, then test with the 2nd stick only.
    Lenovo Thinkpad T61 8897CTO: Core 2 Duo T8100 2.1GHz w/AC MX-2 | G.Skill 4GB RAM | Hitachi 5K500.B 250GB HDD | 14.1" SXGA+ | GMA X3100 | 6-cell Li-Ion Battery | Optimized Windows XP SP3 | Next Thinkpad: Fanless, SSD, USB 3.0 || Past Thinkpads: T42p / T30 / A22e

  10. #10
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    Default Re: T61 infinite restart problem

    I tried what you say but unfortunatly it didn't work :/.
    Lenovo Thinkpad T61
    C2D T7300 2Ghz - 14" WXGA+ - Nvidia Quadro NVS 140M - 3GB DDR2 - Seagate Momentus XT 500GB

 

 
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