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XIGMATEK > 
Item#: N82E16835233025

XIGMATEK cobra - d984 92mm HYPRO Bearing CPU Cooler

  • 1000 - 2800 RPM
  • 39 - 54.6 CFM (Max.)
  • Aluminum Alloy
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Learn more about the XIGMATEK cobra - d984

Model

Brand
XIGMATEK
Model
cobra - d984

Spec

Type
Fan & Heatsinks
Fan Size
92mm
Compatibility
Intel Socket 775 CPU (Core 2 Extreme / Core 2 Quad / Core 2 Duo / Pentium Extreme Edition / Pentium D / Celeron D)

AMD Socket AM3 / AM2 / 754 / 939 / 940 CPUs (Athlon 64 / FX / X2 / Opteron / Sempron)
Bearing Type
HYPRO Bearing
RPM
1000 - 2800 RPM
Air Flow
39 - 54.6 CFM (Max.)
Noise Level
20 - 28 dBA (Max.)
Power Connector
4 Pin with PWM
Heatsink Material
Aluminum Alloy

Physical Spec

Fan Dimensions
92(W) x 92(H) x 25(D)mm
Weight
452g

Features

Features
H.D.T. (Heat-pipe direct touch) technology.
Anti-vibration rubber design.
Particular fin shape design provides effective heat dissipating.
Efficient air flow cools components around CPU.
4pcs 8mm efficient heat-pipes.
Outstanding performance & easy installation.
Performing PWM fan.
3 in 1 application: LGA775 push-pin / K8 & AM2 tool-less clip.

Manufacturer Warranty

Parts
1 year limited
Labor
1 year limited

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the XIGMATEK cobra - d984

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  • Peter J.
  • 7/10/2013 11:00:27 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Cooling for Less $

Pros: Cools my CPU very effectively with low noise. I was getting ~45-55 °C stock temps (even higher with Prime95), but this baby lowered my temps to ~38 °C idle and 42 °C under Prime95. Even under Prime95 it was very quiet. Very simple installation and good design.

Cons: Fins were bent on arrival. The rubber standoffs were hard to get onto the heatsink because of this. The locking mechanism is not nearly as solid as I had hoped but it is getting the job done.

Other Thoughts: Relevant parts of my machine:

ASUS M4A77TD MOBO
AMD Phenom II X4 955BE CPU, at stock clock

Did you find this review helpful? Yes No

  • martha w.
  • 6/25/2013 9:09:26 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsGood but Not Spectacular

Pros: The cooler is big and solid. Upgrade from AMD stock cooler.

Cons: Expensive
Lots of bent fins
Fan mounting system

Other Thoughts: Limitations of my case pretty much dictated an aftermarket cooler of this size. After about a week to let the Arctic Silver 5 "cure" I'm getting 1 - 2 degree drop in idle temp, and about 5 - 8 degrees under load on a FX-6100 (no overclocking). Really expected a little better performance.
As others have noted even though the shipping box and retail packaging were in great condition, it had probably 12 fins bent - some quite severely.
Xigmatek should really re-think their fan mounting system as it looks like all of their coolers use the rubber mounts which are way more difficult to install than they have to be.
Finally this is a discontinued product and at $45.00 the cost to performance ratio would make it hard for me to consider buying again.

Did you find this review helpful? Yes No

  • Alexander J.
  • 5/12/2013 7:23:47 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSolid unless you are OCD

Pros: - Easy to install (AM2 socket)
- reduced cpu temp by 25 degrees C (note I also used arctic 6 thermal paste and installed better fans in my case)

Cons: Some of the fins were bent...Probably about 5 fins were bent, not a big deal, took 2 minutes to straighten them out to my liking.

Other Thoughts: If you are OCD about looks the bent fins might be a bigger deal, didn't take off any stars for it because I only care about performance.

1 out of 1 people found this review helpful. Did you? Yes No

  • joseph r.
  • 2/23/2013 1:50:11 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsworks great

Pros: It looks great, kinda like half an engine block in ur case. it also keeps it incredible cool and I'm using a micro mobo and even with the RAM with the cooling system it fits perfectly over the top of em with room to spare..

Cons: Notta one

Other Thoughts: I recommend this to anyone who is looking for a great cpu fan/heatsink and is restricted on space.

Did you find this review helpful? Yes No

  • Adrian G.
  • 9/16/2012 9:48:53 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsgood

Pros: Used it on my AMD 1090T build. Once installed, it works very well. It cools just as much as the AMD stock cooler, but with significantly less noise.
I like that it's not a giant tower inside my case.

Cons: Installation. I installed it after I had the rig up and running. So I had everything in the box and decided to replace the stock cooler. I didn't have a lot of room to work with, my fault. But clamping down the locking mechanism was very trying. It felt like I was going to break the lock handle when I was trying to lock it into place. I couldn't get enough leverage to lock it with my fingers so I used needle nose pliers. That worked quickly and the heat sink is VERY secure.

Other Thoughts: I have the CPU fan running at 50% speed minimum. It is silent and the cpu idles at 23C in a 73F room. In other words it idles at ambient temperature. Under load, it maxes out at ~59C.
I use arctic silver 5.
I have ~1mm of clearance between my ram (G.SKILL RIPJAWS) and the heatsink overhang.
I thought it was a little pricey, but I'm pleased with the results, especially the sound.

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  • thomas b.
  • 8/19/2012 1:40:26 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Works great, keeps very cool.

Cons: large heat sink, and it hangs over the ram on my mother board so i have to take it off to access the first two sticks of ram

Did you find this review helpful? Yes No

  • Kevin H.
  • 5/13/2012 4:35:37 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsGreat Product

Pros: I bought this last week due to some heating issues with my recently built desktop that would randomly shut down, believed it was temp related but never caught the temp at the specific time it shut down, my temp with a Athlon II X4 640 was running on avg about 38c to 45c at most times idle. With this unit it is now at 29c idle and 38c max with full 100 CPU usage.

Cons: None

Other Thoughts: Great product, I will use these in my future builds

Did you find this review helpful? Yes No

  • Anonymous
  • 5/8/2012 9:23:17 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggs10C drop in temps. Great cooling.

Pros: 4 HDT pipes. Dropped temp on a budget-build Rana 3-core 450 by 10C. And that is in a recycled Dell Dimension 4700 case which is notorious for bad airflow (I couldn't resist reusing Dell's case and PSU by substituting a new mobo & chip just for spitz-n-giggles. Looks on the outside like old junk - runs like a new PC :D).

Cons: When overclocking (which means the fan is spinning at 100% all the time) it is a little loud. Not too bad though. I might replace it with a Noctua 92mm spare I have lying around.

Other Thoughts: Idling at 17C (cross-checked using AMD Overdrive, HWMonitor, and Core Temp - all report the same). Used Arctic Silver 7. The Dell 4700 case is mostly empty now (SSD and using onboard graphics) with a few extra fans strategically placed inside. Didn't want to spoil the outside look since I plan to tell people all I do is defragment regularly to keep it tuned... :P

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  • Ralph C.
  • 4/4/2012 8:30:55 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGr8 Cooling

Pros: This is a gr8 cpu cooler,nice way to mount fan and hs.PWM.

Cons: none

Other Thoughts: This keeps a cool e8600 oc@3.8 at 29c,games and video renderat 43c in a 74 deg F room.Cool down time less than a min back down to 29c.C1E and other power savings diabled.Was well pleased with this cooler and its recovery time from full load temp(amazed)A little shorter than the loki with fan mounted but only by a few mm.The stock cooling could not compare to this cooler.I could only mount it one way with it blowing on vrm(p5ql-pro) wich is what I wanted this for compared to the loki or any other tower stand up cooler.I purchased the back plate kit (still dont like the push pin )with xziggy asgaurd case it has open window behind MB to mount this kit holds well used roswell silver paste and has done more than I expected for a cooler.

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  • Peter G.
  • 4/1/2012 8:02:14 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsnice

Pros: MUCH better than stock cpu cooler,5C cooler on idle, 20C under 100% load!, pretty solid, kind'uv exhaust about half of the heat toward top/rear case fans, ALOT bigger than stock but well designed, but small footprint on mb,ram fits under it (so cpu fan would blow on mem), i put on other way though. above ranking for cpu cooler ONLY, handling ranked below (see other thoughts, cons)

easy to install .

Cons: box was open inside ups box (NO damage to ups box), cooler still in plastic packing, missing 1 screw(needed for intell cpu, i use amd), bax was definatly opened though .

Other Thoughts: unhappy i seem to have been shipped/sold an ?open box unit? would give actual cpu cooler a definite 5/5 BOX WAS OPENED before shipping.

?handleing? a 1/5 score
would give actual cpu cooler a definite 5/5

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Item#: N82E16835233025
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