Scored a free R740XD at work, but it has an interesting problem, the latch on the top cover doesn't go all the way in. I have a small rack and it touches the server above even when it's completely closed. I noticed that here is a small pin inside that could be on the way - it's hard to tell. I never dealt with R740s before, my R730 didn't have this problem. Is it broken, can it be easily fixed?