crwdns2934241:0crwdne2934241:0 stu r

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Computer was working, then powered down. Can't restart

crwdns2934249:0crwdne2934249:0:

Computer was working, ather monitor was added and everything was OK.   Then computer powered off and I can't start it.

Where should I look?

crwdns2866306:0crwdne2866306:0:

Lenovo ThinkPad T490

crwdns2915684:0crwdne2915684:0:

open