Technology content trusted in North America and globally since 1999
8,256 Reviews & Articles | 62,643 News Posts

GIGABYTE Z390 Designare (Intel Z390) Motherboard Preview

By: Steven Bassiri | Socket LGA 1150/1151 in Motherboards | Posted: Jan 10, 2019 4:00 pm
TweakTown Rating: 92%Manufacturer: GIGABYTE

Circuit Analysis

 

gigabyte-z390-designare-intel-motherboard-preview

 

The Z390 Designare shows us the goods with the heat sinks removed!

 

gigabyte-z390-designare-intel-motherboard-previewgigabyte-z390-designare-intel-motherboard-preview

 

The VRM is a large 12+1 phase VRM consisting of 50A Vishay SiC634 DrMOS for the CPU phases and a single SiC620 60A DrMOS for the iGPU. It is controlled by an Intersil ISL69138 digital PWM controller in 6+1 phase mode, and six ISL6617 doublers are used to balance phase currents between each set of doubled phases.

 

 

The doublers are in synchronous mode, so a PWM readout would look like a large 6-phase VRM instead of a 12-phase one, so the doublers are used exclusively to balance the current between pairs of phases. The design compromise was made on these boards to improve transient response. On GIGABYTE's IR-based Z390 VRMs, the PWM readout would look like a 12-phase VRM because of IR's transient algorithms, so asynchronous mode is engaged on this board. Either way, the VRMs are very nice.

 

gigabyte-z390-designare-intel-motherboard-previewgigabyte-z390-designare-intel-motherboard-preview

 

The VCCSA and VCCIO are controlled by Richtek RT8120 single phase PWMs with integrated drivers, and they control some miniature On Semiconductor PowerPAKs labeled "4C06". The memory VRM uses the same Richtek PWMs, but with larger On Semiconductor "4C06N" N-channel PowerPAKs in a two low single high configuration.

    We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.

Related Tags

Got an opinion on this content? Post a comment below!
loading