Asus DSAN-DX - Manual (Page 18)

1-4 Chapter 1: Product introduction
1.4.2 Innovative ASUS features
ASUS Smart Fan II technology
The ASUS Smart Fan technology smartly adjusts the fan speeds according to the
system loading to ensure quiet, cool, and efficient operation.
PIKE (Proprietary I/O Kit Expansion)
PIKE is an on-demand upgrade kit for users. This ASUS unique feature enables
users to choose their preferred I/O solutions. ASUS provides multiple SAS
solutions for different segments and purposes and PIKE saves lots of validation
efforts and hardware cost for end users. Moreover, the special patent design offers
multiple I/O solutions without occupying the Slot 6 in 1U system.
ASUS Flex-E Technology
ASUS Flex-E Technology allows PCIE slots to automatically switch configurations
for Graphic Card and Storage Utilization. ASUS Flex-E Technology offers two kinds
of configurations, PCI-E x8 Link on both Slot 5 and 6 or PCI-E x16 Link on the Slot 6.
The PCI-E signal of the Slot 6 would switch to x16 Link automatically when the Slot
5 is not occupied. With this flexibility, ASUS Flex-E makes motherboards suitable
for both Server and Workstation.