Spire TherMax Eclipse II CPU Cooler Review

A Bit Bulky but Great Performance!


Overall good performance but a bit bulky.


Very good performance, quiet and fairly easy to install.


May not fit all cases.

A good way to ensure that you get maximum life from your desktop is to do your part in making sure your system stays cool. A good CPU cooler is an excellent way to prolong the life of your desktop. Allowing you to work proficiently, and reduce the number of errors that are linked to overheating. The Spire TherMax Eclipse CPU cooler has it’s heat pipes strategically placed to ensure quick heat displacement. The TherMax Eclipse also has two fans that can be placed onto the heat-sink for maximum cooling.

The Eclipse can be used on either an Intel or AMD motherboard. The Cooler comes with hardware that will allow you to place the cooler on either type. My first try around I tried to install in a mini-tower desktop but that didn’t work out too well, so I installed it in a mid-tower that I had and it fit snuggly. I didn’t have any other coolers to compare the TherMax to, so I compared how it fared to the heat sink and fan that came with the desktop.


The Spire TherMax Eclipse comes in a nicely packaged box with a clear front that will enable you to see the contents inside. Inside the box, you will find the cooler, two fans, screws/rubber fitting to attach the cooler to the motherboard, and the instructions on how to configure it. When first looking at all of the pieces it was a bit confusing and I was thinking that it was going to be a hard task than I originally thought. After reading the instructions (which are easy to follow) I had confidence that the Eclipse would be simple to install.

The cooler has five copper U shaped heat pipes that are surrounded by thick fins, which are made of nickel. It is fairly light at 822g (it looks heavier than it really is). The Eclipse is fairly bulky so you will need some space inside your tower. The fans are two 120 x 120 x 25mm fans that run at 2,200 RPM so that you get maximum circulation. Fans also run at 29dBA, so they are fairly quiet. It comes with all the plates and screws to attach the cooler to the motherboard and rubber hinges to attach the fans to the cooler.

The Spire TherMax Eclipse also comes with its own Thermal compound but I decided to use the Coolink Chillaramic thermal compound to test. The Coolink Chillaramic is actually very easy to clean off and simple to apply. You don’t have to use much of it to get the job done and there is enough for 30 applications so it should last a while. The fans both have three pin connectors in order for you to power the fans from the motherboard. One fan also has a four-pin peripheral connector in order to connect the fan directly to the system power supply. When I actually try to connect the fan directly to the power supply my desktop would power on for about 10 seconds and then power off. I have a feeling that my system power supply was not powerful enough to power the fan. Once I connected directly to the motherboard the problem ceased.


After reading the installation instructions the installation of the Spire TherMax Eclipse was straight forward. I had to take the existing cooler, fan, and brackets off but after that, it was a quick process. I have an ASUS A8M2N-LA motherboard with an AMD Athlon 64 2.4 GHz processor.

After removing the old cooler and fan, I attached the back-plate and the mounting screws to the back of the motherboard. I applied a small amount of Coolink Chillaramic thermal compound and lined the brackets at the bottom on the cooler with the screws from the back coming from the motherboard, and secured the connection with the spring-loaded screws. After the cooler was secured I attached both additional fans. I secured my motherboard back into the tower reconnect all of my devices to the motherboard and started the computer. At first, the computer would only power on for about ten seconds or so before it would shut down, so I disconnected the cooling fan that was connected using the four-pin peripheral connector and only used the fan that was powered from the motherboard and it worked perfectly. I recommend that you make all of your motherboard connections before you put the fan in place so that you have more room. After that, the system powered up and was ready to test.


I did a test on the CPU temperature using the cooling system that came with the desktop and a test of the temperature after I installed the Spire TherMax Eclipse II. I tested the temperature for one hour on idle and on load for each cooling system. I used SpeedFan v4.40 to measure the CPU temperatures and I used CPU Burn-in v1.01 to load the CPU. First I tested the CPU temperature on Idle (1 hour) and on load (1 hour) using the cooling system that came with the Compaq Presario SR2030NX. Then I tested the temperature of the CPU on Idle (1 hour) and on load (1 hour) using the Spire TherMax Eclipse cooling system.


Using the stock cooling system in the Compaq the CPU temperature was 30oC on idle with a fan speed of 1727 RPM and 40oC on load with a fan speed of 1735 RPM. When using the Spire TherMax Eclipse II the CPU was 25oC on idle with a fan speed of 1182 RPM. On load, the CPU temperature was 33oC with a fan speed of 1184 RPM (we had to retest a few times to get accurate results). In both tests, the Spire TherMax decreased CPU temperature a lot with a significantly lower fan speed which saves power and reduces noise. You can also see that the TherMax Eclipse II performs better than the TherMax II by a few degrees (that was expected though).


When first opening the packaging of the Spire TherMax Eclipse II was a bit confused about how all of the parts fit together, but after reading the installation instruction it made the process a bit easier. The Eclipse is a bit bulky so make sure you have plenty of room inside of your case (horizontally and vertically). Make sure you are comfortable with taking your motherboard out of your system because to properly mount the Eclipse you are going to have to take out the motherboard. If you want to use both fans, make sure your power supply can handle the extra peripheral. As far as cooling my system, I am satisfied and would recommend the Spire TherMax Eclipse cooler. I got significant cooling results and lower fan speeds which will prolong the life of my PC. The fan was not aloud as the default fan and with lower RPM’s didn’t have to work as hard which saves power. If you have plenty of room in your tower case and need the extra cooling power I would consider the Spire TherMax Eclipse.

highly recommended award


Model #SP984B1-V2 TherMax Eclipse II
Socket TypesSocket 1156
BearingsBall bearing
MaterialAlumunium cooling fins
Copper Heat pipes
Direct Touch base
Speed Rating2,200 RPM ±10%
Power RatingVoltage 12 V
Watts 4.2 W
Current 0.35 A
Connector3 pin
Noise Level29 dB/A
Airflow93.3 CFM
Life HoursBall 50,000
Celeron D ~ 2.93 GHz (340J)
Core 2 Duo ~ 3.33 GHz (775 Dual-core)
Core 2 Extreme ~ 3.2 GHz (775 Dual-core)
Core 2 Quad ~ 3 GHz (775 Quad-core)
Core i3 ~ 3.06 GHz 1156
Core i5 ~ 2.66 GHz 1156
Core i7 ~ 3.2 GHz 1366
LGA775 ~ 3.93 GHz (Prescott)
Pentium D ~ 3.4 GHz (775 Dual-Core)
Pentium EE ~ 3.93 GHz (775 Dual-Core)

Athlon 64 FX-74 (K8)
Athlon 64 X2 (AM2)
Athlon X2 (AM2)
Phenom X3 ~ 8500 GHz (AM2/AM3)
Phenom X4 ~ 9600 GHz (AM2/AM3)
Thermal Resistance0.091 °C/W
Thermal PasteBlueFrost - SP802 blue grease (Injection Tube,0.5g)
Static Pressure3.35 mmH2O
TemperaturesOperating: 30 - 70 °C
Storage: -10 - 40 °C
Other FeaturesFive (5) 8mm all copper U-shaped direct touch heat-pipes
Straight lined heat-pipes allowing air to easily pass through
46 stamped aluminum wide fins for best surface rate
Dimpled surface fin for increased heat transfer rate
Black-Nickel coated heat-sink to preserve killer looks from oxidation
Two (2) 120mm BlackStar 9 blade fan design
High Quality, Long MTBF Japanese No.1 Ball bearing
Anti-Vibe universal rubber fan mountings (crews)
DimensionsHeat-sink: 131 (L) × 70 (W) × 152 (H) mm
12VDC Fan: 120 × 120 × 25 mm
Warranty5 years