There was a thread in the mobo forum last week about this. A number of people reported bad luck with them.
Keep in mind that these are NOT factory refurbished, they are user returns that supposedly test good. My concern would be if the user returned it because of instability or something that a 2 minute test wouldn't reveal.
From Newegg's policy page:
Refurbished Items
Refurbished products are products that contain components that have been owned by other clients and returned to NewEgg.com, Newegg.com guarantees all refurbished products for 30 days only. All refurbished items are considered OEM "barebone" parts.