Is cooling a problem in a 2Ux2 Case?
No. Quite the contrary, cooling is much less of a problem in a 2Ux2 case than it would be in a pair of 1U cases. There are several reasons for this. One reason is the height. Thin 1U cases require low-profile parts. That means you can’t use a manufacturer approved “thick” thermal solution for the CPU. In a 2Ux2 case, genuine Intel coolers can be used right out of the box. Another reason why 2Ux2 cases are cooler than 1U cases has to do with fan area. An 80mm fan like we use in a 2Ux2 system has four times the area of the 40mm fans you will find in a 1U case. That means that a 1U case needs four fans to equal the fan area of a 2Ux2 case.