03-09-2009 05:34 PM
BTW, I just ended up re-installing my x200 from the provided pre-installation disks, which I believe is an x64 Vista Business with SP1. Directly after installation, Windows started to download a few megabytes of updates, and after a few reboots: Volia - the hardware interrupts are back again :-)
Anyway, so: not sure who is at fault here. My hardware? Some Lenovo driver? Some Windows update? This surely appears right off a fresh Lenovo pre-install image (x64 Vista Business), with only the "important" Windows updates installed (ok, I had Office 2007 installed as well).
PS: Oh, and by now the interrupts also seem to appear when not docked. So there goes my last idea of where this is coming from (i.e., it's obviously _not_ the docking station, nor the ethernet hardware, as I'm wireless when undocked).
03-29-2009 08:23 AM
I too have seen the 40% CPU in Interrupts, as sensed by Sysinternals ProcessExplorer. This is on an X301 with Vista Ultimate, up-to-date with all Lenovo updates.
I tried disabling some devices, and established that it was not the WiFi card causing the problem.
The video driver is version 220.127.116.116. A later version is avilable from Intel, but it will not install on this hardware: maybe Lenovo make some customisations to the driver.
04-15-2009 12:28 AM
To install the Intel driver you first have to deinstall the Lenovo driver (Check the "delete the driver software of this device" checkbox (maybe sound different, I'm using a german Vista)).
I have installed the 18.104.22.1689 driver version (but a more recent may be available at intel's driver page) and experienced no more 40% CPU usage (hardware interrupts)
05-13-2009 12:30 AM
I had the same problem, where my 2-core X61s was having near 50% CPU utilization due to Hardware Interrupts. After reading around, I did some debugging using krview, found that most of it was due to ntkrnlpa process, NtBuildNumber and RtlIpv6StringToAddressA modules, but that did not help figure out the cause.
After exhausting debugging options, I went with the hunch and did carpet-bombing by uninstalling my display drivers, IDE ATA/ATAPI controller drivers and Monitor drivers. After rebooting, the problem went away! Since Intel chipset was not recognized, I had to manually download and install from Lenovo site several Display/Video drivers afterwards:
- Intel (GL960, GM965) Display Driver
- ThinkPad Monitor INF File
I also downloaded and installed "Disabling tool for Intel Turbo Memory Driver", since my PCI Memory device was showing up with a red sign.
No problems so far, everything is working.
05-13-2009 05:21 AM
Not sure but all three off my X301s have at time few second delay, at time, when using the keyboard. The touchpad all of a sudden goes dead and then comes back just as quickly. It is like the laptop is busy doing something else and then get back to allowing user input.
Hope someone comes up with an answer
08-03-2009 01:58 PM
This isn't a specific fix for this specific issue, but I've found with a very similar "excessive hardware interrupts" scenario I experienced over the past few months (Windows XP, Thinkpad T61) that:
12-04-2009 07:44 AM
I had the same problem. It took me about 2 months to figure out whats wrong and finally................................................ I FOUND THE CURE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
All you have to do is to disable the "biometric device" and everything goes back to normal.
07-19-2010 04:41 PM