XIGMATEK PTR-CN881 HDT Northbridge Aluminum alloy Heatsinks only

Pros: North Bridge has never been cooler. This can be a pro or a con, but It's huge, and looks ridiculous, but next to my massive 212 Evo, it fits right in.

Cons: My NZXT Phantom Original is HUGE and this thing is about an inch below the evo. If your case will not fit an evo, careful about buying this.

Other Thoughts: Used arctic silver 5

Pros: It keeps the NB cool and with out the optional fan it is silent if it fits your board.

Cons: did not fit my board the ASUS M5A97 LE R2.0. when aligned to the NB correctly the screw and nut were jammed so tight to the heat pipe that it was not possible to tighten them correctly.

Had to ghetto rig it in place after hours of trial and error i managed to align the pipe and the NB and screw it down. i wiggles in place. i an sure it would wiggle if i had not ghetto rigged it. not sure i feel good about the install. I may try to mill the stock sink in to a home made hybrid.

Pros: Works fanless on an nForce 680i chipset, with 4GB Memory @ 800MHz, and C2D E4300 (1.8GHz) overclocked to 2.7GHz, so my heat demand is a little higher than stock. The hardware it comes with is quite complete - I was surprised by the inclusion of the foam support pad (past chipset cooler did not include this). It's a good break from the noise of the failing fan on the previous chipset cooler. Solid mounting.

Cons: -For whatever reason, they included an extra large, black, rubber fan mount, but just enough of the tiny, wood/skin colored washers. The latter is much easier to lose, but fortunately I didn't.

-Install requires the removal of the motherboard, since I didn't have the hook-style mounting. Takes a bit of time to do it right (read: to be a perfectionist)

Other Thoughts: The temps do hover about 6-8C higher than the NorthPole cooler, but keep in mind that is passive cooling vs active cooling. I installed it in a manner which left plenty of room for a normal thickness fan should the temps become unreasonable.

I can make no comment on other motherboards/graphics card configurations, but I my motherboard I could install it in just about any configuration without clearance issues. Using a GeForce GT 220 graphics card and stock intel CPU cooler (It keeps it plenty cool for even a 50% overclock)

Pros: Supplied with a good selection of mounting hardware and the design for an optional fan attachment is pretty slick.

Cons: It is a little bit LARGE and a PITA to install. I'd strongly recommend removal of the MoBo rather than even try using the "hooks".

Other Thoughts: I'm using this to cool the Northbridge on an ASUS P8Z77K-V LK board that I'm putting quite a high demand on (batch processing high numbers of very large RAW image files).

With a an optional 80mm fan attached it has dropped the temperature 10c to 12c during these batch processes and the way this board is laid out it also blows nicely across the RAM heatsinks.

Pros: -Massive and keeps things very cool without a fan.
-Mounting hardware is very robust. I can't imagine a board this would not mount to with all the mounting hardware it comes with.

Cons: -why are the fines offset from the base This makes no sense at all. No motherboard maker offsets their north-bridge heat-sink. This will either cause VGA or CPU clearance issues.

Other Thoughts: it fits but its close. good mounting hardware but i don't know why the tower is offset.

Pros: Copper Heat Pipe and thick heat plate. Offset design may also be of help

Cons: Was difficult to get mounted since I have no extra space to work with since I already have a Coolermaster V8 on the CPU. The holes for the stock NB Heatsink are pretty far offset and only 2 holes on my GA-990FXA-UD3. When there is a will there is a way and I feel I have it safely seated on the board and chip. The center of the chip is where the Copper and Aluminum meet on the plate so the copper is not 100% over the chip. With the lack of room a 80mm x 80mm x 25mm fan won't fit between this and my V8 so looking for a 15mm wide fan to work

Other Thoughts: The temp sensors are wacky on my Mainboard so I can't really tell the actual temps but that area seems to be cooler and so does the heatsink compared to stock

Pros: It silently cools the northbridge. Xigmatek provides multiple setup options and the instructions are easy to follow. I did not use the thermal compound provided and used arctic silver.

Cons: Pretty obvious but this unit isn't small and can't be manipulated as well as a small fan.

Other Thoughts: Works great on a DFI Lanparty NF4 board. The fan died and after about 30 minutes I was able to put it on. Had to remove the motherboard from the case and remove the spring pins holding the old heat sink in place. I only have two lard 120mm fans in the case now. The heatsink for cpu is a huge version of this product (sonic-tower).

Pros: It looks nice with my xigmatek loki and lowered nb temps on my 990fx by 15c.

Cons: Even though I could install it, it was still a frustrating install with the screws through the motherboard method. (as opposed to the springs and hooks)
Shipping took about a week even though I live 3 hours from the warehouse. Disappointing.

Other Thoughts: Even though it was difficult to install, it does keep my nb nice and cool. Before installing this badboy, when I bumped into the nb heatsink while the computer was on, it would be burning hot. Temps were acceptable before (~41c), but I wasn't comfortable with the incredibly hot heatsink. This is on a gigabyte 990fx-ud3 motherboard in case you guys were wondering.

Pros: Super cool. Lower the NB on my Asus Rampage II Gene by 20 deg C.

Cons: Cleared my CPU cooler (coolermaster hyper 212) but I had to move my video card to the lower slot. I could of squeezed it in there but did not want to risk having the cooler touch the back of my video card.

Really difficult to install as others have said. You have to lift up your mb, not so bad. But the difficulty comes into effect when you install the cooler itself. the screws are just a bit too short. I had to cut the springs in half to be able to start the nut. Once it was on though all was good. Nice and cool, and looks great too.

Pros: none

Cons: Didn't do anything to reduce my temps. My old heatsink worked better.

Other Thoughts: Waste of money