The IS-55 is the latest low profile cooler from IDCOOLING. The cooler is 55mm tall and can be mounted in either orientation without affecting performance. The IS-55 comes in either white or black variants.


SPECIFICATIONS
MODEL | IS-55 |
DIMENSIONS | L: 120 x W: 120 x H: 55mm (including 15mm thick fan) |
MATERIALS | 5x 6mm copper heat-pipes, copper base (nickel plated), aluminium cooling fins |
COMPATIBILITY | Intel: 1200/1700 AMD: AM4/AM5 |
FANS | 1x 120x15mm (2000RPM) |
RAM CLEARANCE | 33mm |
THERMAL COMPOUND (INCLUDED) | Y |
TEST SYSTEM

Testing is carried out on BC1 Mini v2 (Open Testbench), using the following hardware in 20°C ambient room temperature.
CASE | BC1 Mini v2 (Open Testbench) |
MOTHERBOARD | Rog Strix B650E-I Gaming WiFi (paid link) |
CPU | R5 7600X / R7 7700X (paid links) |
CPU COOLER | IDCOOLING IS-55 (paid link) |
PSU | Extreme 850R (paid link) |
RAM | 32GB Gskill DDR5, 6000MHz, CL30 (paid link) |
THERMAL BENCHMARKS
We use Cinebench R23 multicore (stability test), for CPU thermal testing. This provides worse case scenario for given CPUs thermal output.
CONCLUSIONS
The IS-55 is LP cooler that has been designed with focus on LGA1700 & AM5. It has good build quality and simple; effective mounting system.
In pursuit of performance, the IS-55 has a downside, which limits RAM or motherboard I/O shield compatibility height to 33mm. This rules out using the I/O side on majority of LGA1700 & AM5 motherboards. It also has very limited RAM compatibility list for both DDR4 & DDR5.