Since there is almost no space at all for an X99 chipset based motherboard, the power design is pretty compact, but that doesn't mean it doesn't pack some serious punch. Due to the fact, that there is an "OC Socket" on this board, this is necessary as well. One single phase with DrMOS caps is capable of covering 60A, which makes each phase quite strong.
Nichicon Gold Caps
A closer look at the audio implementation of this board shows again, that ASRock had to the with the very limited space. Nevertheless the manufacturer is using Gold Caps from Nichicon to improve signal quality in combination with an ALC 1150 chip from Realtek.
M.2 Support
The X99E-ITX/AC motherboard
from ASRock features an M.2 slot which is placed between two PCIe slots. This motherboard can be equipped with SSDs in M.2 format and it is wired directly to the
X99 PCH via four PCI Express lanes, therefore offering up to 20 Gbps can be pushed over the bus through this slot.
Cooler
Surprisingly ASRock ships this board with a cooler in the delivery. A closer look at the socket shows that the mounting holes had to placed differently in order to free some more space, in order to squeeze the an entire X99 chipset into this very tight form factor. If you're wondering about the socket name, it's a so called Narrow-ILM-type Socket LGA2011-3. Quickly testing the cooler at 23°C ambient temperature with prime95 revealed the following test results:
- 29°C idle temp @ 49.7 dBA (very noisy)
- 68°C load temp @ 51dBA (very noisy)