remind me what... or remind me of what...

1. remind me of what
提醒某人某事

2.一般没有这种提法，当然
当你不需要加 of to 后的介词宾语时就可省了
up是副词如果一个词组有up一般不能省略

remind sb of sth.使某人想起什么(固定搭配)
remind me of what引导名词性从句

remind
verb
~ sb (about / of sth) to help sb remember sth important that they must do: [VN] I'm sorry, I've forgotten your name. Can you remind me? ◆ That (= what you have just said, done, etc.) reminds me, I must get some cash. ◆ 'Don't forget the camera.' 'Remind me about it nearer the time.' ◆ [VN to inf] Remind me to phone Alan before I go out. ◆ [VN (that)] Passengers are reminded (that) no smoking is allowed on this train. ◆ [VN wh-] Can someone remind me what I should do next? ◆ [VN speech] 'You had an accident,' he reminded her.
Phrasal Verbs: remind sb of sb/sth if sb/sth reminds you of sb/sth else, they make you remember or think about the other person, place, thing, etc. because they are similar in some way: You remind me of your fat