Each thread stands on its own. If you create a new thread many won't know to check priors so you should create a PS. to add all the needed detail.
You didn't answer my question so I take it this stick is no good. Does not boot on other PCs.
Thanks for your reply. Yes I AM creating new threads on same problem although progressing slowly to new stages. The reason is that the laptop I am using to try to get the information to fix my own laptop also has issues, one of which it does not seem to respond when I click on either 'reply' or 'answer' so apologies but really can't do anything about it.

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