CHiL Semiconductor Corporation, a leading developer of high-performance,
mixed-signal power management integrated circuits for the server, personal
computer and high-volume computing market segments, announces that its digital
controllers are highlighted in motherboards containing Intel’s newly launched
P67 “Sandy Bridge”-based performance motherboards from Asus, Intel and
The new motherboards reflect the CPU voltage regulator’s (VR’s) key role in
both performance and energy savings. The customized power solution showcases
performance in overclocking, stability, and features, while at the same time
providing exceptional power efficiency. CHiL’s well proven digital power
management is at the core of the power solution.
The CHiL VR solutions are found in ASUS high end motherboards, overclocking
gaming motherboards, and workstations like the Maximus 4 Extreme and the P8P67.
They are also in Intel motherboards like the Intel DP67BG (Burrage) Extreme
Series, manufactured by Mitac and the BA 3+0, manufactured by Pegatron, as well
as ASRock’s high end motherboards, P67 Extreme 4 and P67 Extreme 6.
Voltage regulator modules are considered among the most essential motherboard
design components. According to ASUS, the use of the new digital power design
empowers users with superior flexibility and perfect precision to ensure
optimized performance, extreme system stability and greater power efficiency.
Anandtech, a leading industry source for hardware analysis and news, notes
that these new motherboards have lower power consumption than virtually any
other available platform under load.
“The introduction of Intel’s Sandy Bridge processor family brings brand new
power requirements to the VR industry,” said CHiL chief executive officer Ram
Sudireddy. “These requirements, known as VR12, implement a new, highly digital
communication SVID bus between the CPU and the VR in order to optimize
efficiency and performance. Implementing this highly digital content means that
an all-digital VR solution is definitely the best choice.”
The CHiL VR is extremely efficient, which is of greater concern than ever in
the marketplace. When high power use is not needed, many of the phases can be
turned off. Unlike analog solutions, which have difficulty maintaining a stable
voltage with some or most of the phases disabled, the new digital VR ensures
that under any voltage and current, with any version of the Sandy Bridge CPU,
the optimum number of phases is chosen, while the voltage is always guaranteed
to be stable. At very low power levels, the VR’s digital algorithm automatically
senses that power is low and places the VR into a very low power state, called
discontinuous mode, which saves even more power, so the user saves power in idle
state as well.
The system’s telemetry reports back all critical information to the system
with extremely high accuracy, including voltage, current, power and
temperature. The VR can change switching frequency on the fly, to reduce
system noise and help with efficiency. When the voltage is changed
significantly, or the current increased significantly in an overclocking board,
the digital solution’s stability parameters can simply be changed, something
impossible with an analog solution.
The CHiL VR also features new circuit protection features. As the voltage
changes in overclocking, or as the current increases, overcurrent protection and
voltage protection set points can be updated in real time, ensuring the circuit
is always protected.
With the P67 family of processors comes a new way to achieve overclocking.
The VR solution extends the Sandy Bridge voltage range to reach higher voltage
levels with extreme accuracy, stability and voltage and current protection, all
managed by CHiL’s digital engine. The VR also allows the motherboard to remain
in turbo-mode safely, protecting the CPU with exceptional thermal performance,
allowing a much richer, but safe overclocking experience.
The all-digital VR is also extremely reliable. Analysis using Mil-HDBK-217F,
a military quality technique for determining reliability, showed that the
digital VR is two times less likely to fail than an analog solution, primarily
because the digital solution uses far fewer external components and pins than an
The new CHiL VR has a uniquely engineered spread spectrum technique, where
the VR switching frequency is changed as it operates, reducing board level
noise, ensuring safe, low noise operation.
Besides saving energy, the CHiL VR uses fewer external components and comes
in a smaller, fully RoHS-compliant package, thus reducing the number of
electronic parts that may someday require disposal in a landfill.