What is K53 - Computers & Internet

https://www.scribd.com/doc/101719651/The-Official-K53-Learner-s-and-Driver-s-Made-Easy-Extract

You are on the wrong website for this type of inquiry. This is a community based self-help website for the repair and use of manufactured products made for consumer use

Only Asus-techs are able to look up this info, this database is for Asus-techs only. Also, the dc-in is easy to buy on ebay, pretty easy to solder as well. Since this is a well known weakness on the K53, you might be able to get warranty-repairs.

Since there are several windows versions available for this laptop, you can download the correct drivers from here: http://support.asus.com/download/options.aspx?SLanguage=en&type=1

For this kind of issue, please follow up the following steps to check:

1.confirm the battery and asus k53 ac adapter connect the laptop normally.Maybe the bad connect lead to this problem. If there are no lights when you turn on laptop, one of possible reason is that your adapter is malfunction.

2.the second possible cause is laptop dc jack failure. If the dc jack is broken or loose, you are required to replace it or repair it.

3.Another possible reason is that there is something wrong with laptop motherboard. For this situation, it includs two kinds of possibility,a failure in an electronic circuit and BGA malfunction.

For more detailed reasons and solutions, please have a look at the following article:
http://www.ifitjams.com/lappower.htm

Check headlamp relay K53 under hood fuse relay box .

I'd ask your professors which one they recommend and if they don't have a recommendation ask them what they use or better yet what they would like to use if they could afford it!
good colleges should recommend a compatible laptop that will easily sync with their school system!