Summary: I own both the above motherboards and the way the northbridge heatsinks are on both boards this wont fit you can not in any way fit the heatsink on because you cant get to the top screws to hold them down, also the bracket that you have to screw down to hold it is to long and hits the heatsinks. So you would have to grind bracket down the find some magic way of getting to the screw on that side to tighten them.
Cons: Wont fit on a z97 chipset board made by gigabyte namely the GA-Z97X-Gaming G1, ALSO the z97 SOC FORCE. NO SUPPORT from Zalman
Cons: I've built literally over a few hundred rigs and this is by far the worst CPU cooler I've ever installed. -Absolutely mind numbing the difficulty to get this installed. -Backing plate and fittings do not fit properly. -The black washer type nuts do not thread well at all. -The way this thing was designed in reference in size was poorly implemented. This will either swallow access to memory slots or cover the first PCI-E slot on most motherboards.
Summary: It is pretty much INCOMPATIBLE with Gigabyte GA-990FXA-UD7
Pros: Nice looking, great design, good workmanship. Alligns perfectly with rear exhaust fan of Rosewill BLACKHAWK-ULTRA Gaming Super Tower
Cons: If used with Gigabyte GA-990FXA-UD7 motherboard it: - totally blocks an access to PCI-E x16_1 slot - strongly obscures memory slots 3 and 2 and forces you to use low profile (<42 mm) memory in slots 1 and 0
Summary: Wish it had more height from fans to processor so could fit in the space. I have been extremely happy with Zalman coolers.
Pros: I am sure this works great if would fit the 2011 boards. Great setup as to the parts included and how to attach to motherboard.
Cons: Absolutely too wide to actually use with lga2011 boards even though has all parts for it to work. The unit will not sit down on the processor as it hits the memory sticks. The space on all gigabyte and asus motherboards between the memory slots is smaller than the width of this cooler. It looks like if you use very short height memory it might work, but if using any memory made for speed it will not fit.
Summary: Irritating to have to fork out $30 for return shipping and restocking. Tried a Corsair H100 earlier, only to have the pump go out after three days. You gotta love risking a $1,000 Sandy Bridge E processor and other equally expensive components on cheap coolers. There's just not that much available in the cooler market right now that's workable and reliable for LGA 2011.
Pros: None-- unusable because of its seriously flawed design.
Cons: Tried on Asus Rampage IV. The CNPS12X is way too low to clear even low-profile RAM. What was Zalman thinking? All they had to do is raise it up a few mm's so it would've cleared the RAM (and it still would've fit in most cases). Bottom line: the Zalman CNPS12X will work with so few motherboards without touching the RAM, it shouldn't even be on the market.
Cons: Designed without any actual test fitting on a full built PC, covers up to 3 RAM slots!!! Total waste of money, cant use it with my triple channel memory kit. Only buy is you have a HUGE motherboard, and make sure you have enough space between where the CPU and RAM should be.