ZALMAN ZM-NB47J Aluminum Heatsinks only

Pros: Lowered temps by about 8 degrees celcius. Installation so easy "a caveman could do it." Nice tidy footprint. Got rid of my very noisy fan that was on its last leg. Newegg delivered in two days, no problem.

Cons: As with replacing a cpu heatsink, it takes a couple weeks for thermal paste to "set," so don't expect lower temps immediately. Consider tall profile before purchasing-- depending on where you intend to put it and what may be over that area (side panel fan, extra long graphics card, etc.). Not for mobos with anchors for hooks around chipset. Designed only for chipsets with plastic "push-through" anchors with springs (comes with 4 in pkg).

Overall Review: when assembling for installation, go ahead and loosely screw (less than hand-tight) the small anchors onto the heatsink. Don't apply paste to heatsink or chipset yet. set on chipset as if installing and carefully tighten the anchors after eyeballing where they need to be. loosen slightly to make small adjustments and tighten again. Instructions are down and dirty and don't include these kind of remarks. Made install very very easy.

Pros: Have had for over a year on my a8n sli deluxe board cooling a athlon 3200@ 2700. Keeps temps down very well.

Cons: I just installed a 8800gts 320mb card into my rig and the zalman cooler was too big and in the way. I ended up sawing half the metal fins off at the base and the 8800gts fit right in. Temps are still the same! Saved me some money because I didn't have to buy a new cooler.

Overall Review: Cant beat that price.

Pros: A heatsink with enough mass to actually dissipate some heat! Fits almost any application with two mounting holes. No fan. No fan. No Fan. (can you tell I'm sick of hearing cheap chipset fans as they die!)

Cons: For the cost, beggers can't be choosers, but it would be nice if it came with 4 mounting arms instead of just 2.

Overall Review: I've used this on just about every top-tier motherboard brand. The facts of life are that chipset fans are cheap and will always fail, especially in a hot dusty work environments. I just replaced the useless heatpipe cooler on my Evga 680i board with one of these and a HR-05-SLI. MCP temp in the bios dropped from 65c to 45c. This is with a E4400 @ 3.2 and a superclocked 8800 GTS snuggly tucked into an NSK4400 case. All the cooling is provided by one 120mm fan and one 80mm fan. System and CPU temps hang in the mid to upper 40's.

Pros: Was a perfect replacment for the dying northbridge fan on my Asus A8n-Sli Deluxe. Fit was excellent and cooling with a little AS-5 is improved.

Cons: I stabbed my finger on the NB fan connector while mounting the second push-screw.

Overall Review: Excellent replacement for cheap, failure-prone NB fans. The mounting hardware took a little time to get perfectly set, but once it was dialed in, the fit was great.

Pros: This seems to work great on my ASUS A8N5X Motherboard. The stock fan started making noise until it finally froze up. The NVIDIA NB Chip was so hot to the touch, I knew I had to do something about it. This is a great passive solution. Very big and sturdy, plus extra mounting pieces if you loose one.

Cons: I had to take the motherboard out of the case to get the stock chipset cooler off. It was a hassle to install, but necessary. The nuts and screws were really small. Make sure you have a tiny phillips screwdriver handy. The mounts are spring loaded, I hope the springs don't hold the HS off the chip.

Overall Review: Comes with Zalman thermal grease and 3 mounting springs, 3 mounting clips and 3 nuts and small screws. You only need 2 of everything, but it's nice to have that one extra part in case you loose one. Don't forget to go into the bios and turn off the chipset fan warning if you have one. This is passive, no fan = no noise!

Pros: Fits, and does it's job. You can orient it any way you want, which is perfect since I might have had problems getting it between my SLI under different circumstances.

Cons: Putting the tiny assembly together was a pain. Had to buy a tiny screwdriver just for the job. Fortunately, you only need to do it once. You do have to remove your MB to take out the old and put in the new, but that would be true for any NB sink replacement.

Overall Review: A8N SLI-D Northbridge replacement. I'm not sure for how long, but when I looked at the factory fan last week I had been running my computer without a working one, perhaps for months. And my system is OCed, so I can't believe I didn't burn it out. Been running just fine since, and I no longer have to worry about it breaking. It does run silent, but the fan before hand was silent too since it was broken :p

Pros: Silent! Runs cooler( ~3 degree C)than Asus A8N-E N-bridge stock fan! Cheap. Easy to install.

Cons: Absolutlety None.

Overall Review: I bought this when I built my system almost 9 months ago but never installed it for fear of heat. The stock fan was getting loud so I the Zalman. I also have a fanless Asus Extreme N6600LE Silencer/TD, (256 MB) PCI Express Graphic Card. I have a Scythe 8db 120mm intake fan blowing on both. My system is super quiet with this combination and runs cool in a Sonata case.

Pros: My Motherboard had those super tiny annoying fans that made lots of noise an didn't move any air. I replaced them with this guy and had better cooling with no noise!

Cons: Mounting hardware felt a little clumsy. I have been using it over a year with no issues so I guess I can't really complain.

Overall Review: They are much bigger than my stock heatsinks, If you have a large CPU cooler and a poorly placed north and southbridge, a dremel might be needed to remove some fins. I measured and knew this beforehand, make sure you do the same.