NMI: Parity Check / Memory Parity Errors on Lenovo T500 2082-58M running Windows XP.

NMI: Parity Check / Memory Parity Errors are occurring on
five out of five Lenovo T500 laptops 2082-58M tested.
I can get the error to re-occur consistently by installing
IBM Director Client version 5.20 or 5.23, taking remote control and then within
the remote session I initiate a PC restart. This re-produces these errors
without fail.
I've also received this same error without Director but am
unable to cause this to re-occur consistently.
My Findings:
Changing the BIOS Settings from the default settings of :
BIOS Config > Display
Default Primary Video Device:[Internal]
Boot Display Device:[ThinPad LCD]
Graphics Device:[Discrete Graphics]
OS Detection for Switchable Graphics:[Enabled]
To the following settings resolves the issue though this
causes the installed and previously working ATI driver not to detect the video
device.
BIOS Config > Display
Default Primary Video Device:[Internal]
Boot Display Device:[ThinPad LCD]
Graphics Device:[Integrated Graphics]
OS Detection for Switchable Graphics:[Disabled]
What I have tried:
o Updated the BIOS and Drivers to Latest available
o Re-Installed the Display Driver, Downgraded the
Display Driver
o Removed the Display Driver and left BIOS
settings enabled (NMI errors re-occur)
To get to the above findings I tried removing /
re-installing pretty much every driver and disabling every option within the
BIOS. I am only listing what I believe is now relevant to the identified
problem. I can provide further information upon request.
Anyone able to help ?

Hello,
the switchable gfx doesn´t work in XP. In XP you have to choose gfx options in bios before booting os.
Please try:
Default Primary Video Device:[Internal]
Boot Display Device:[ThinPad LCD]
Graphics Device:[discrete Graphics]
OS Detection for Switchable Graphics:[Disabled]
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dzastrow, welcome to the forum,
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Message Edited by erik on 05-30-2008 12:31 PM
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====================================================================
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Aug 6 16:36:14 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
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NMI: Parity Check / Memory Parity Errors on Lenovo T500 2082-58M running Windows XP.

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