I have another system with a EP45-DS3L that this P55 system is replacing. I had to replace the heatsink and Gigabyte sent me a new one no questions asked.I pulled the details, and placed it in the previous post.
Makes it a really nice board for drive capacity without an quick need for a controller card in the 4x PCIe slot.
I'm using ASUS atm, and I've had good luck with them for awhile now (workstation & server boards; current = P6T6 WS Revolution). I've not used a Gigabyte recently at all.