I obtained the new small low profile IS-55 CPU cooler from ID-Cooling and have tested its cooling performance and compared it against two larger low profile coolers – the Thermalright AXP120-X67 and the Noctua L12 Ghost Edition.
The cooler is tiny – even smaller than I thought it would be from the description. It easily mounts from the top in a similar manner to both Thermalright and Noctua using the standard AMD backplate. I have the black finished version with my first(!) RGB fan. The cooler is nicely finished with five heatpipes with a denser fin stack than either of the other two coolers. You definitely need to use low profile ram such as Corsair LPX. ID-Cooling includes a Noctua style screwdriver and screws for mounting a 25mm fan to the cooler.
The IS-55 and the AXP120-X67 both have only one set of mounting bars – the IS-55 uses longer mounting bars, the AXP120-X67 shorter mounting bars, so that the two coolers have their fin stacks rotated 90 degrees from each other. With only a single pair of mounting bars these two coolers can only be rotated 180 degrees – if they fit in both orientations. With my Aorus X570 ITX motherboard, the IS-55 would only clear the rear IO cover when facing away from the GPU. The Noctua L12 GE has two sets of mounting bars allowing the cooler to be rotated in 90 degree increments. I would like to see the inclusion two sets of mounting bars for AMD CPU motherboards as standard for all coolers.
The IS-55 has one real trick – due to its low height of 55mm, a 25mm fan can be used instead of the included 15mm fan and still be no taller than the Thermalright AXP120-X67 or the Scythe Big Shuriken 3 cooler.
The IS-55 and Thermalright AXP120-X67 were tested with their included 15mm fans, the Noctua A12x25 and Noctua A12x15 fans. The Noctua L12 GE was tested with the Noctua A12x25 and A12x15 fans. All fans were run at 100% PWM.
The DB meter was 30cm from front center of the chassis facing directly towards the front of the chassis, and 19cm high from the desk top. Sound DBA measurements were taken when the motherboard chipset fan was not running.
Cooler performance and fan noise noted:
The IS-55 fan is the quietest of all the tested fans – impressive. With the A12x25 fan installed on the IS-55, the cooling performance improved with only a slight increase in noise. Excellent performance for such a small cooler.
Thermalright seems to emphasize cooling performance over noise. The included 15mm fan is a bit louder, but performed at the same cooling level as the 25mm Noctua fan when installed on the AXP120-X67.
The Noctua A12x25 fan provided improved cooling performance on both the IS-55 and L12 GE coolers.
The Noctua A12x15 fan was quiet but provided only a very slight cooling improvement over the included fan on the IS-55 and worse performance on the AXP120-X67 cooler.
The larger the cooler the lower the temperature – no surprise.
MakerBeam Open Test Bench – Proof of Concept PC Case
Aorus X570 ITX MB; Ryzen 7 4750G with integrated graphics; 32 GB Corsair LPX 3200 RAM;
Evga 3060Ti XC Graphics Card – installed but disconnected
Noctua NT-H1 Thermal Paste
CPU-Z Stress Test & Unigine Valley Ultra Settings for 10 minutes
Room Temp 21C;
CPUID HWMonitor & Tech Power Up GPU-Z Readings:
The cooler is tiny – even smaller than I thought it would be from the description. It easily mounts from the top in a similar manner to both Thermalright and Noctua using the standard AMD backplate. I have the black finished version with my first(!) RGB fan. The cooler is nicely finished with five heatpipes with a denser fin stack than either of the other two coolers. You definitely need to use low profile ram such as Corsair LPX. ID-Cooling includes a Noctua style screwdriver and screws for mounting a 25mm fan to the cooler.
The IS-55 and the AXP120-X67 both have only one set of mounting bars – the IS-55 uses longer mounting bars, the AXP120-X67 shorter mounting bars, so that the two coolers have their fin stacks rotated 90 degrees from each other. With only a single pair of mounting bars these two coolers can only be rotated 180 degrees – if they fit in both orientations. With my Aorus X570 ITX motherboard, the IS-55 would only clear the rear IO cover when facing away from the GPU. The Noctua L12 GE has two sets of mounting bars allowing the cooler to be rotated in 90 degree increments. I would like to see the inclusion two sets of mounting bars for AMD CPU motherboards as standard for all coolers.
The IS-55 has one real trick – due to its low height of 55mm, a 25mm fan can be used instead of the included 15mm fan and still be no taller than the Thermalright AXP120-X67 or the Scythe Big Shuriken 3 cooler.
The IS-55 and Thermalright AXP120-X67 were tested with their included 15mm fans, the Noctua A12x25 and Noctua A12x15 fans. The Noctua L12 GE was tested with the Noctua A12x25 and A12x15 fans. All fans were run at 100% PWM.
The DB meter was 30cm from front center of the chassis facing directly towards the front of the chassis, and 19cm high from the desk top. Sound DBA measurements were taken when the motherboard chipset fan was not running.
Cooler performance and fan noise noted:
The IS-55 fan is the quietest of all the tested fans – impressive. With the A12x25 fan installed on the IS-55, the cooling performance improved with only a slight increase in noise. Excellent performance for such a small cooler.
Thermalright seems to emphasize cooling performance over noise. The included 15mm fan is a bit louder, but performed at the same cooling level as the 25mm Noctua fan when installed on the AXP120-X67.
The Noctua A12x25 fan provided improved cooling performance on both the IS-55 and L12 GE coolers.
The Noctua A12x15 fan was quiet but provided only a very slight cooling improvement over the included fan on the IS-55 and worse performance on the AXP120-X67 cooler.
The larger the cooler the lower the temperature – no surprise.
MakerBeam Open Test Bench – Proof of Concept PC Case
Aorus X570 ITX MB; Ryzen 7 4750G with integrated graphics; 32 GB Corsair LPX 3200 RAM;
Evga 3060Ti XC Graphics Card – installed but disconnected
Noctua NT-H1 Thermal Paste
CPU-Z Stress Test & Unigine Valley Ultra Settings for 10 minutes
Room Temp 21C;
CPUID HWMonitor & Tech Power Up GPU-Z Readings:
CPU Cooler | ID Cooling IS-55 | ID Cooling IS-55 | ID Cooling IS-55 | TR AXP120-X67 | TR AXP120-X67 | TR AXP120-X67 | Noctua L12 GE | Noctua L12 GE |
CPU Cooler Fan | Incl 15mm fan | Noctua A12x25 | Noctua A12x15 | Incl 15mm fan | Noctua A12x25 | Noctua A12x15 | Noctua A12x25 | Noctua A12x15 |
TZ 10 Temp Sensor Max | 16.8 | 16.8 | 16.8 | 16.8 | 16.8 | 16.8 | 16.8 | 16.8 |
System 1 Max | 49 | 45 | 48 | 44 | 45 | 48 | 44 | 46 |
CPU Max | 83 | 77 | 82 | 75 | 76 | 78 | 74 | 76 |
PCIEX16 Max | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
VRM Max | 48 | 43 | 48 | 48 | 46 | 49 | 46 | 49 |
CPU Fan Max RPM | 1885 | 2045 | 1700 | 1928 | 2070 | 1704 | 2039 | 1748 |
Chipset Fan Max RPM | 3609 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
CPU Pkg Max Temp | 83.8 | 77.9 | 82.5 | 75.9 | 76.3 | 78 | 74 | 76.8 |
CPU Pkg Max Wattage | 85.74 | 86.49 | 86.43 | 86.89 | 88.37 | 87.29 | 86.8 | 86.54 |
NVMe Top 980 Pro Temp | 53 | 48 | 51 | 47 | 48 | 51 | 45 | 49 |
APU Max Temp | 65 | 60 | 64 | 58 | 57 | 59 | 55 | 59 |
SoC Max Temp | 67 | 62 | 66 | 59 | 60 | 62 | 58 | 61 |
DBA Sound Level | 40.2 | 42.9 | 40.5 | 45.7 | 43.6 | 40.6 | 43.4 | 40.2 |