Well, first, you aren't going to be much of a pump with 5 rep sets. So it's not surprising that the deads and chins aren't giving you much in that department.
That said, the pump isn't really what you should be after, progression is. I do understand though that if you aren't feeling the correct muscles working, you probably need to change something.
First moving the deads to the end of the workout (that way you don't have to save anything, you can give them everything you've got),
Second consider switching to rack deads (which IMO are a better upper back builder and have less chance of lower back injury, oh and you can use heavier weight) and dropping the bent rows
Or alternating between floor deads and bent rows (I agree with Carnage that doing both in the same workout isn't a great idea in the long run) in subsequent workouts
Third do a higher rep set of deads/rack deads after you've completed your heavy set. Shoot for somewhere between 15-20 reps and you will absolutely feel your back working. And make this challenging. I realize your profile says you've only been training for 5 months (this time around), so I don't know how your grip on form is. But unless you push yourself (while still trying to maintain safety of course) you're never going to really feel much with these.
Fourth make sure that you are getting a good stretch at the bottom of your chins/DB rows, and really work on pulling with the desired muscles; and try those 1 and a halves that Carnage mentioned on the chins (higher reps too if possible).
Fifth work on activation. Try practicing flexing your lats and upper back muscles (yeah I mean actually stand in front of a mirror and practice some BB'ing mandatory poses, in the privacy of your own home if you like) to get better at feeling these muscles contracting and activating them.
Lots of other good advice given as well.