The Norwegian, still a crowd idol at his former club after his goalscoring heroics for the Reds, believes Robin van Persie helped make the difference with his early strike. However, Solskjaer refused to accept it was a bad time to face United with the Dutchman, Wayne Rooney and new signing Juan Mata all available for David Moyes.
"They have good players no matter," he insisted. "It could have been Danny Welbeck. It doesn't really matter when you play the big teams as they have always got squad players. Van Persie scored the goal and has obviously got that class.
"It was a great goal by van Persie. There were three balls on the bounce in the box and that's a goalscorer because he wants to score a goal. It was really what we lacked - that oomph.
"I’ve been here for 15 years in the other dressing room. It was a bit tight and more crowded in this one! The rest of it was a normal game of football.
"You expect a decent response and reception because I've always had a great relationship with the fans," he stressed. "It was fantastic but I'm hoping to have the same relationship with the Cardiff supporters and they were fantastic. I kept hearing them singing and we kept the United crowd quiet so that was a sign of a good overall performance by my team. I've seen the team develop over the last month but now is the time to get points with the situation we're in. We need points not performances."
Solskjaer elaborated on his deal to bring Fabio to the Welsh capital but stressed a loan swoop for Wilfried Zaha has still to be finalised.