A: My computer broke, ever since that happened I've been trying to fix it but everything I have tried hasn't worked. I tried calling my brother who is an expert but nothing, I tried many times leaving it to cool off but it didn't work, what can I do?
B: Have you tried opening it maybe there's something wrong inside.
A: I have tried many times already / I tried many times / I have tried many times/ I tried many times already but it didn't work.
Now the problem is that since I have already listed all the things that I have tried in past simple if this other one is part of the things tried can it be in present perfect?