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Posted to Beckhoff Blog on Aug 06, 2009
I shamelessly copied this scenario and solution from the TwinCAT Developer LinkedIn group. Kudos to Steve Maves of Beckhoff Automation USA support, who fixed a customer's bluescreen issue by making the registry tweak below.
I have had a Dell laptop on a project recently that blue screens every time I try to start the TwinCAT System. I am not sure if this is the same problem that is described below, but I am going to try this tweak the next time I have access to the laptop.
I will update this post when I determine if this fixed my problem as well.
Numerous blue screens of death (BSOD) are occuring on a development computer.
STOP: 0x0000008E (0xC0000005, 0xDE04BCA5, 0xECDEAA70, 0x00000000)
TcRunTime.sys-adress ED04BCA5 base at ED037000, DateStamp 48e34ca8
AMD Athlon 64 Bit,1.5 GHz, 512 MB, Gigabyte motherboard (GA-K8VT800 Pro) with XP pro SP2
Changing the registry key
‘DisableC1E’ to value ‘0’
According to Steve: "This regkey disables TwinCAT from using a feature which is only available on Intel CPU's"
Nice work Beckhoff Support! Thanks Steve for publicizing this registry tweak, hopefully it will fix my issues as well.