Do you have the Automatically Restart option disabled, like I showed you how to, and it doesn't give you a BSOD? Or ti doesn't give you a BSOD and you haven't disabled that option?
You could also look trough the event logs (Start > run > type 'eventvwr.msc' without the quotes). Look under the section called 'System' and look to see if there's any references about Memory dumps, dump logs, etc.