IBM Flex System x240 M5 Product Manual page 4

Intel Execute Disable Bit functionality can help prevent certain classes of malicious buffer overflow

attacks when combined with a supporting operating system.
Intel Trusted Execution Technology provides enhanced security through hardware-based resistance

to malicious software attacks, which allows an application to run in its own isolated space that is
protected from all other software that is running on a system.
Energy efficiency
The x240 M5 offers the following energy-efficiency features to save energy, reduce operational costs,
increase energy availability, and contribute to the green environment:
Component-sharing design of the IBM Flex System chassis provides ultimate power and cooling

savings.
The Intel Xeon processor E5-2600 v3 product family offers significantly better performance over the

E5-2600 v2 family while fitting into the same thermal design power (TDP) limits.
Intel Intelligent Power Capability powers individual processor elements on and off as needed, which

reduces power draw.
Low-voltage Intel Xeon processors draw less energy to satisfy demands of power and thermally

constrained data centers and telecommunication environments.
Low-voltage 1.2 V DDR4 memory DIMMs use up to 20% less energy compared to 1.35 V DDR3

DIMMs.
Solid state drives (SSDs) use as much as 80% less power than traditional spinning 2.5-inch HDDs.

The x240 M5 uses hexagonal ventilation holes, which are a part of IBM Calibrated Vectored Cooling™

technology. Hexagonal holes can be grouped more densely than round holes, which provides more
efficient airflow through the system.
IBM Flex System x240 M5 Product Guide 4