The enhancements in windows are handled by the driver (realtek in most cases). And the external dac you bought is basically an external sound card, so the realtek enhancements wont work, you will have to find some other solution (SRS audio essentials or something like that) or find a driver which includes it.
Philps SHE8005
I personally use them and they sound really good for the money. An added bonus is that they are only 30 bucks.
http://www.amazon.com/Philips-SHE8005-In-Ear-Headphones-Mobile/dp/B004NROUSE/ref=sr_1_1?ie=UTF8&qid=1412980912&sr=8-1&keywords=philips+she8005
Your only option right now would be to buy a second hand ssd as any ssd so far as I know costs at least €60 or you will be stuck with 60gb and that isn't nice.
You could also go for an amd 8350 as the game performance isn't hurt all that much, and they are a lot cheaper and as an added bonus the mobos are also a lot cheaper.
If you want more than 32gb of ram, the only thing you are left with is x79 or x99, ddr4 however is very expensive. As a result I would go for a (second hand) x79 board+cpu.
I don't know where you are from nor your age, but in my own country (Netherlands) you can get it pretty cheap as a student so you may want to look into that. You could also try buying an OEM copy somewhere.
It's non error correcting ram so its not server memory, that said do you really need it?
Source: http://eu.crucial.com/ProductDisplay?urlRequestType=Base&catalogId=10152&categoryId=22502&productId=134010&urlLangId=-1&langId=-1&top_category=&parent_category_rn=22502&storeId=10152
I'm looking for one, so if you still have it that would be nice. A good friend of mine really wants one, and I pissed him of a bit today. As a result it would be nice if I could make it up to him, by giving him the invite.
That's just the smartest thing ever, but anyway.. Today I had to show my neighbour how to send an attachment in freaking hotmail/outlook. It's literaly 2 clicks. I was like, REALLY U SERIOUS???