Enriched Asrock Z690 PG Velocita PCB Breakdown notes (Patreon)

8 layer PCB. Having more PCB layers CAN help reduce the impedance of power planes. Which can lead to lower VRM+PCB operating temperatures and better voltage regulation.Extra PCB layers can also help with RAM overclocking.-------------------------------------------------------------------------------------------------------Vcore VRMCONTROLLERRAA229131 20 phase controller running 16+1 (+1 for iGPU)

MOSFETs16x ISL99360 60A SPS

MOSFET+INDUCTOR EXPECTED POWER LOSSat 1.2V and 500KHz200A ~16W300A ~26W400A ~36W500A ~53W

OUTPUT FILTERING150nH inductors12x 560uF through hole aluminium polymers. 12K hours at 105C rated Nichicon FPcaps4?x 330uF 2 terminal SMD tantalum capacitors in CPU socket

INPUTFILTERING3x 270uF through hole aluminium polymers. 12K hours at 105C rated Nichicon FPcaps6x 100uF 2 terminal SMD tantalum capacitors

-------------------------------------------------------------------------------------------------------iGPUCONTROLLERRAA229131 1phase

MOSFETSISL99360 60A SPS

-------------------------------------------------------------------------------------------------------VCCIN VRMRAA229001 8phase controller running 2+0 phasesMOSFETSISL99360 60A SPS

MOSFET+INDUCTOR EXPECTED POWER LOSSat 1.8V and 500KHz40A  4W

-------------------------------------------------------------------------------------------------------RAMDDR5Daisy chain topologyAll DQ (DQ=data queue) traces are on internal PCB layers (basically "shielding")CAD bus at least partially on top and bottom layer of PCB

-------------------------------------------------------------------------------------------------------Overclocking FeaturesPOST codeinternal Power and Reset buttoninternal clear CMOS buttonrear IO BIOS flash buttonVRM fan (for cheating in VRM thermal tests :P)