Available: From the point where you join the College.
Locate and speak to Drevis Neloren. Ask him if there's anything the College needs. Agree to help him cleanse the Magic Points and you'll receive the Mystic Tuning Gloves . Equip them and now you got markers on all focal points . Go to each point and activate them.
There are 3 in total; one in each hall and one outside. These can do a random thing to you, from breaking an item, filling a Soul Gem, or harming you. Be careful. Once you've activated all 3, return to Drevis. He thanks you and removes the gloves... and that's it. You don't get anything. LAME!
I happened to find an interesting glitch while doing this quest. I was supposed to go get some gear to be enchanted from a guy named Aicantar in Markarth. Problem was, he was in Calcelmo's Tower, and for the life of me I COULD NOT talk to him without getting told that I wasn't supposed to be there (I could NOT do this quest at ALL).
Also; I got the thieves guild quest " Hard Answers " for a SECOND TIME when I entered the Dwemer Museum! Lesson: SAVE before taking quests from Sergius.