Would installing a 120mm fan on the cryorig H7 improve its performance?
Would installing a 120mm fan on the cryorig H7 improve its performance?
The cryorig h7 includes a 120mm fan operating between 330-1600 rpm and 49 CFM. A fan priced at 20 dollars with a rating of 600-2200 rpm and 83 cfm could potentially enhance performance, but it's worth considering whether it truly makes a difference or if the included fan is sufficient.
I'll ask Cryorig when you place the order for the fan... it's not just about making it spin faster, since it can also draw air in from the sides of the cooler. Also, if the fan fails, is your box still worse than if it were on a drawer? You could either discard it or leave it on a shelf.
This is different from situations where X fans blow in and Y fans blow out. It's also distinct from having X fans with an inlet filter while others blow out.
You can adjust the RPM of the fans using your MoBos speed control to limit their speed.
It won't work for you if you purchase that fan. Dual fan setup needs two fans with the same CFM, static pressure, and speeds. You'd need to obtain identical fans, which are available on the cryorig website. Even then, performance differences are usually only up to 5°C, typically around 2-3 degrees.
Push-pull typically enhances airflow by 10-30% (on average) ... yet testing at martins liquid lab revealed that varying speeds or Sp values actually improved performance, which is unexpected. I assumed you selected the H7 due to a specific fit requirement... are you certain you could install a second fan? From your initial comment, I believed you were considering a fan swap. Here’s what we observed for the UT60: 1400 rpm provided 210 watts of cooling, 1800 rpm gave 269 watts, and 2200 rpm reached 327 watts. Taking an average suggests around 1600 rpm with about 240 watts. At 2200 rpm, a 35% improvement was noted, though it would likely increase noise significantly. An air cooler responds differently; I still expect a boost of roughly 25% or more. If push-pull is an option, it works—different speeds won’t be a major issue. Adding a fan usually has less impact. We saw temperatures drop from 52.75°C with one fan to 51.75°C with two fans and 50.75°C with three fans. If you’re seeking more performance and are okay with more noise, the older fan might still deliver results. Martin surprised us and his audience with his findings, but it’s hard to predict how much benefit any combination would offer. Still, it’s free time to test if the results match his observations. The temptation is there, but it only costs you time.
OK. That's a lot of details. I saw that using a faster fan on one side and a slower one on the other for push-pull could cause the slower fan to exceed its designed RPM due to increased airflow from the faster fan. This might harm the slower fan. Would you like me to summarize that post? 😛
I'll ask Cryorig when you place the order for the fan... it's not just about making it spin faster, since it can also draw air in from the sides of the cooler. Also, if the fan fails, is your box still worse than if it were on a drawer? You could either discard it or leave it on a shelf.
This is different from situations where X fans blow in and Y fans blow out. It's also distinct from having X fans with an inlet filter while using Y fans that blow out without filters.
You can adjust the RPM of the fans using your MoBos speed control to limit their speed.