The week after Labs A-D and the one after Labs K-N are designated as lab make-up weeks. During these two weeks, you can attend either (or both) of the Mon and Wed sessions to complete any of the labs that you have not completed yet because of illness or any other reason.
In addition, these weeks allow you to improve your lab mark by attempting one of the make-up labs, LabX, on MIPS, and LabY, on Verilog. Each of these labs is also marked out of 5 and your mark in it will be averaged with your lowest lab mark. The overall weight of the lab component remains unchanged.