Description
The Thermalright SI-100 redefines the thermal expectations of small form factor cooling, delivering a potent combination of compact engineering and high-capacity heat dissipation. Designed specifically for chassis where vertical clearance is at a premium, this top-down cooler ensures that compact system builders do not have to compromise on processor performance. By utilizing a horizontal heatsink layout paired with a high-static-pressure fan, it actively cools not only the CPU but also the surrounding motherboard components, including the VRM and RAM modules, which frequently suffer from stagnant airflow in tight enclosures.
This versatile thermal solution is engineered to meet the needs of five distinct user groups. First, Small Form Factor (SFF) enthusiasts and Mini-ITX builders will find its 74.8mm total height ideal for tight chassis clearances. Second, HTPC (Home Theater PC) creators will appreciate the low-noise S-FDB V2 bearing fan that keeps media centers silent during operation. Third, PC gamers building compact rigs can leverage the 6-heatpipe array to maintain stable boost clocks during intense gaming sessions. Fourth, budget-conscious hardware upgraders benefit from the broad out-of-the-box compatibility with modern Intel and AMD sockets. Finally, system integrators will value the reliable, long-term operation backed by a two-year warranty and a secure mounting system.
- Heatsink Dimensions: 120 mm (L) x 108 mm (W) x 74.8 mm (H)
- Total Weight: 490g (including fan)
- Heatpipe Configuration: 6 x 6mm copper heatpipes
- Base Material: C1100 pure copper with nickel plating
- Fan Model: TL-E12 PWM
- Fan Dimensions: 120 mm x 120 mm x 25 mm
- Fan Weight: 150g
- Fan Speed: Up to 2000 RPM ± 10%
- Maximum Airflow: 72.37 CFM
- Maximum Static Pressure: 2.87 mm H2O
- Noise Level: 27.7 dBA (Max)
- Rated Current: 0.18A
- Connector: 4-Pin PWM
- Bearing Type: S-FDB V2 (Fluid Dynamic Bearing)
- Intel Socket Compatibility: LGA 115X / 1200 / 1700 / 1851 / 2011 / 2066
- AMD Socket Compatibility: AM4 / AM5
- Warranty: 2 Years
In real-world testing, the Thermalright SI-100 delivers an exceptional user experience by balancing raw thermal capacity with refined acoustics. The installation process is straightforward, utilizing a robust mounting bracket system that ensures optimal contact pressure against the CPU integrated heat spreader (IHS). The C1100 pure copper base is nickel-plated and CNC-machined to a mirror-like finish, maximizing heat transfer efficiency. Under sustained workloads, the TL-E12 120mm fan ramps up smoothly via PWM control, moving a substantial 72.37 CFM of air through the dense aluminum fin stack. The S-FDB V2 bearing eliminates annoying mechanical clicking noises, keeping the acoustic profile at a comfortable 27.7 dBA even at its maximum 2000 RPM speed.
When compared to standard tower coolers, the SI-100's horizontal, down-draft design offers a distinct advantage for compact cases where vertical tower clearance is restricted. While traditional 120mm tower coolers require at least 150mm of vertical space, the SI-100 achieves comparable thermal performance at half the height (74.8mm). Against ultra-low-profile 47mm coolers, the SI-100 provides significantly more surface area and two extra heatpipes, allowing it to handle higher TDP processors without thermal throttling. Additionally, its offset design ensures maximum clearance for tall RGB RAM modules and motherboard heatsinks, a common pain point with larger dual-tower coolers.
How tall is the Thermalright SI-100 and will it fit in my Mini-ITX case?
The total height of the Thermalright SI-100 is 74.8mm including the pre-installed 25mm thick TL-E12 fan. This low-profile design makes it highly compatible with most Mini-ITX and Small Form Factor (SFF) cases that support CPU coolers under 80mm.
Does this CPU cooler support the latest Intel LGA 1851 and AMD AM5 sockets?
Yes, the Thermalright SI-100 features universal mounting brackets that fully support modern platforms, including Intel LGA 1851, LGA 1700, and AMD AM5, as well as older sockets like LGA 1200, 115X, 2011, 2066, and AMD AM4.
Can I upgrade or replace the fan on the SI-100?
Yes, the heatsink uses standard fan clips to mount a 120mm x 120mm x 25mm fan. You can easily swap the included TL-E12 fan for any standard 120mm case fan or a slim 15mm fan if you need to reduce the overall height further.
How does a down-draft (low-profile) cooler benefit my motherboard components?
Unlike tower coolers that push air parallel to the motherboard, the down-draft design of the SI-100 forces airflow downward through the heatsink. This active airflow spills over the CPU socket area, directly cooling the motherboard's VRM (voltage regulator modules), M.2 SSD heatsinks, and RAM.
What is the warranty period for the Thermalright SI-100?
The Thermalright SI-100 CPU cooler comes with a comprehensive two-year warranty, ensuring long-term reliability and manufacturer support for your system build.
