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2 Posts

04-26-2008

Australia

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-26, 13:46 PM
i got the same problem and i am kindy pissed by this problem....

42W7653 SYSTEM PLANAR; FRU PLANAR CARD ASM NVIDI

so 42W7653 +1
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3 Posts

04-27-2008

Massachusetts

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-27, 2:20 AM
I had this dreaded problem, so I finally decided i could live without machine for a few days and got mobo replaced. Now that machine is back, it no longer crashes with 3D graphics... BUT... it now will not suspend/resume properly. BIOS rev is the same I had before... nothing else changed... anyone else have this issue?

Sucks since I'd almost rather deal with 3GB ram over not having suspend.  Guess I have to send it back again...

James
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11 Posts

04-20-2008

Darnestown, MD 20878

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-27, 2:20 AM
I posted this in another section, repeating hear.  I had the same problem.  My machine would randomly shut down when running heavy graphics.  I thought it was an overheating problem.  Took to Richards Computer for diagnostics.  Turned out to be a video driver problem.  Richards downloaded a new video driver and problem was solved.  Tech name was John, Richards Phone 703-876-5355. Am running Windows Ultimate on a 2.16 core duo T-60p
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52 Posts

12-13-2007

USA

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-27, 13:19 PM

MGV1947

funny you mention this.  I still believe that this can be solved by driver.  Another guy posted earlier his problem went away after updating to a modded driver from another forum.

 I read on many tech news sites a few weeks ago that 30% of vista crashes is from poorly written Nvidia drivers.  :smileymad:

Where did he get the new drivers from ? 

Lenovo has control over Nvidia's driver releases, I suppose they change a few things in the base driver and release to it's clients.



T61P - 6459-CTO - T7500 2.2Ghz - 4G DDR2 RAM - NV Quadro FX 570M 256mb - 160G 7200 rpm - WSXGA+ 15.4" - Vista Ultimate 32bit
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117 Posts

12-05-2007

Arizona, USA

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-27, 13:20 PM


MGV1947 wrote:
I posted this in another section, repeating hear.  I had the same problem.  My machine would randomly shut down when running heavy graphics.  I thought it was an overheating problem.  Took to Richards Computer for diagnostics.  Turned out to be a video driver problem.  Richards downloaded a new video driver and problem was solved.  Tech name was John, Richards Phone 703-876-5355. Am running Windows Ultimate on a 2.16 core duo T-60p



This thread is about a T61P issue, which incidentally has already been diagnosed by Lenovo and found to be a hardware defect.  Posts like yours are confusing because it sounds like you are saying that this (the one this thread is about...look at the title) is a problem that can simply be solved by a driver, but it's not.  You're not even talking about the same model of laptop.  It would be better to make a separate thread for posts like this regarding the T60P in order to avoid confusion.
T61p, T7800 CPU, Nvidia Quadro FX 570M GPU, WSXGA+ LDC, 4GB RAM, 200GB HDD, Intel 4965AGN wireless, 1GB Intel Turbo Memory, Vista Business 64bit
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117 Posts

12-05-2007

Arizona, USA

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-27, 13:27 PM


ThinkP wrote:

MGV1947

funny you mention this.  I still believe that this can be solved by driver.  Another guy posted earlier his problem went away after updating to a modded driver from another forum.



Lenovo engineers already determined that it's not a driver issue, it's a hardware issue.  Mark explained already how a voltage drop causes instability under load.  Lenovo is replacing motherboards because of this.  Don't you think they would do anything possible to avoid spending that kind of money and replacing people's motherboards?  You honestly think that they would go to all the trouble of a hardware fix if they weren't 100% sure that the problem couldn't be solved any other way?
 
The funny thing is this issue is so sporadic, the voltage drop problem is so small that on some machines you almost never get a crash, especially if you don't push your GPU hard enough.  The issue also is worse on some individual machines than others.  Becuase different driver versions can have some effect on the power consumption of the GPU, if your system's GPU / RAM voltage is just barely not keeping up, changing to a different driver can actually lower the power consumption of the GPU enough to make your crashes stop happening or happen less often. 
 
Does this mean it is a software / driver problem?  Of course not!  The fact is the motherboard is not able to sustain high enough voltage levels to the GPU and RAM for stable operation under certain GPU and RAM loads.  Saying this issue can be solved by a different driver is like saying that a weakly built bridge can be fixed by just not allowing as many cars on it at the same time.  Sure it won't collapse if lower the traffic across it, but that doesn't mean the bridge wasn't defective, it SHOULD have been engineered to handle the load of normal use, plus an extra safety margin. 
 
Saying this issue can be solved by a different driver is also similar to saying the issue is solved by removing one of your sticks of RAM.  For most people the issue will never occur with only 1 stick of RAM.  Is this a solution?  OF COURSE NOT!  The machine was designed to accomodate 2 sticks of RAM and should be able to maintain the voltage supply under realistic power consumption levels of these 2 sticks of ram plus the GPU (from what I hear they share a voltage source).


Message Edited by Hellbore on 04-27-2008 06:30 AM
T61p, T7800 CPU, Nvidia Quadro FX 570M GPU, WSXGA+ LDC, 4GB RAM, 200GB HDD, Intel 4965AGN wireless, 1GB Intel Turbo Memory, Vista Business 64bit
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7 Posts

11-25-2007

New Hampshire, USA

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-27, 15:28 PM
I had the shutdown/BSOD problems under heavy graphic loads (gaming with Bioshock and Crysis) with systemboard 42W7653 and 4GB Mushkin and 4GB Transcend memory.  But with 4GB GSkill memory I have had no problems.  My guess is some memory modules pull less power.  (BTW all the memory modules work fine in X61 and Z61t laptops.)  Anyway, you "may" be able to resolve the problem by using different memory.  But I agree that 42W7653 should be added to the systemboard replacement tip. We shouldn't have to randomly try different memory modules to try to find a set that works.


Message Edited by tselling on 04-27-2008 11:33 AM
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456 Posts

04-05-2008

United States of America

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-27, 19:49 PM
So, if I'm following this thread correctly, this problem is only happening on the 15" widescreen T61p, with the 256Mb video memory, 126bit video bus motherboard and only on certain examples of the model with the 7877 motherboard?  No problem with the 14" (widescreen or 4x3) models with the 128Mb video memory/64bit video bus motherboard (mine is a 7874 motherboard, 14" with 4x3)?  I ordered mine with 2Gb memory (1 DIMM) after reading this thread earlier but I'd like to avoid a problem when I add a second stick of memory and the computer is out of warranty!
 
:smileywink:
 
 
 
Keith
Currently 2xT460, 4xT430, Ideapad K1, H520S,
Formerly 1x600E, 1xT40, 1xT41, 2xT42, 2xT61p, 1xT420




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117 Posts

12-05-2007

Arizona, USA

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-27, 22:19 PM


tselling wrote:
...Anyway, you "may" be able to resolve the problem by using different memory....
I agree, I had a similar experience when I first got my Thinkpad.  With my first 4GB of RAM, the machine would shut down or BSOD less than a minute into a game like Bioshock.  I thought (guided by Lenovo tech support and some people on the forums who were trying to be helpful) that the problem was that I was using RAM that wasn't compatible with the T61p.  So, I bought 4GB of the RAM that Lenovo was selling for this laptop, I figured this way if it didn't work, there was no way they could get out of fixing it.  Turned out the machine would still crash playing games, but now it took longer to happen.  The machine was actually slightly more stable with the Lenovo RAM but still would crash.
 
The RAM that crashed for me was GSkill RAM and the Lenovo RAM I have now is made by Samsung.  Both work perfectly in another laptop I have that takes the same type of memory.
 
But I feel like talking about different brands of RAM is a step backward or at best a blast from the past, we were experimenting with different brands of RAM over 6 months ago back when we thought maybe that was the root of the issue.  It's interesting though in retrospect because now that Lenovo engineers have discovered the real problem, the symptoms make sense, like you said different RAM modules use slightly different amounts of power. 



Message Edited by Hellbore on 04-27-2008 03:24 PM
T61p, T7800 CPU, Nvidia Quadro FX 570M GPU, WSXGA+ LDC, 4GB RAM, 200GB HDD, Intel 4965AGN wireless, 1GB Intel Turbo Memory, Vista Business 64bit
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2 Posts

04-25-2008

China

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Re: T61P Graphic problems--random shut down, BSOD, Crash

2008-04-28, 1:59 AM
It's not a bug but a function to prevent employees from playing 3D game in work time.The real problem is that the designer forgot to put on a switch.:smileywink:
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