05-18-2011 11:35 AM
Our repair experience with the W510 was the same. After an attempted BIOS upgrade (following the instructions which automate the process), the machine failed to POST. Lenovo's repair center received the laptop on Monday, replaced the PLNR part and ran tests the same day, and returned it by Wednesday.
Pretty swift service. FYI, a similar post also asserts that PLNR is the system board: http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/W510-ticking-time-bomb/td-p/291974/page/2.
Whether this replacement resolves the original issue - Autocad throwing errors related to the video driver - remains to be seen.
12-24-2011 06:25 PM - edited 12-25-2011 03:14 AM
This is NOT a hardware issue. I got an X300 where I swap 5 different SDDs/HDDs(!) and the issue occur ONLY on the ones with Win7pro 32 and 64. And NOT with any of the XPpro's.
I' tried the "ThinkVantage System Update 4.01"
as suggested earlier in the thread, and selected these four items
(The hotkey and the driver comes by selecting the first two)
And this fixed the issue! Thanks for the hint.
My GUESS is that the native Windows7 power management leads to an overheat, and the Lenovo one uses the cpu-fan in time.
12-25-2011 04:56 PM
12-25-2011 06:20 PM - edited 12-26-2011 12:14 PM
Unfortunately it seems like the problem is not all gone
But it is better. Before it went down after about an hour or two on my x300, after it was on for many hours with the W7pro64bit 24/12 until I shut down, and on the W7pro32 25/12 about 15 hours and 26/12 about 18 hours until a spontaneous shutdown. But I have NEVER seen this on my XP's so I'm absolutely convinced that this is NOT a hardware issue. (I haven't had the W7pro64 running that long consecutively after applying, but I guess it is not a 32/64-bit issue)
I'm new on W7 on this machine, but did have similar issues on it with the W7beta (about a year ago), but was sure the beta-state was to blame - now I know that it most likely was not the reason.
I have never timed it, but I have a 'feeling' that the fan runs more often after the fix, but still less than it did with XP. This might be just wishful thinking though. Does anyone have similar experiences?
I have noticed intense harddisk activity for a short while just before the spontaneous shutdowns, so it's not just a blunt power off, but nothing gets logged, though sometimes some services are reported as stopped and started within seconds before the power cut.. So that COULD be it if a vital service is errorneously stopped. but guessing here...
12-26-2011 06:01 PM - edited 12-27-2011 04:24 AM
Well it IS an overheating problem. The fan does not run enough under Windows 7!!
I found this little nice tool:
It can tell you the temperature, and give you warnings at a chosen temperature.
So what we really need is a bugfix for Windows 7 to turn the fan speed on/up at increased temperatures, and if not enough, then to slow the CPU down until the temperature is less than critical.
I found this hint:
But it is already set to "active".
I also found this one
And this should be able to control the fan by temperature according to settings in an .ini file
12-27-2011 06:58 PM
12-28-2011 04:44 AM - edited 12-28-2011 04:48 AM
Yes, TPFanControl seem to work well.
The "active" setting in the power options is not aggressive enough to keep a x300 with W7pro from overheating.
Optimally the fan speed should be turned up by the native system as the temperature rises, and if it still rises at maximum fan speed, the system should lower the cpu maximum speed limit to prevent overheating and system damage.
The TPFanControl is good for me, but this is a workaround. An official and fool-proof Lenovo-solution should be pushed out through windows update to have it working for the "average Joe" also. IMHO.
12-28-2011 08:14 AM
I am experiencing the sudden shut down issue with my Lenovo T410. I have had the machine for over a year and have never experienced this issue. I recnetly had to re-image my hard drive and upgraded to Windows 7. All of the sudden, my machine starting shutting down with no warning. It goes from "on" to "off", no blue screen, no shutdown warning.
I installed the Thinkvantage System Update and installed all recommended and suggested updates. Unfortunately, this did not fix the problem.
I can also repeat the problem by running the Lenovo Toolkit "Stress Test" diagnostic. It seems to fail at about 37% complete of the video test but I'm not enitrely sure what is causing the failure.
I have read on this blog that CPU temperature may be the cause but I'm wondering why I never had this problem with Windows XP? Only started happening when I upgraded to Windows 7.
I called Lenovo as my T410 is still under warranty and they are shipping me a new "shell". I am hoping this solves the problem but I'm not entirely sure that it is not software related.
12-28-2011 08:41 AM
12-29-2011 07:04 AM