EVGA Z270 Classified-K User Manual page 17

EVGA Z270 Classified – K (134-KS-E279)
3600MHz speeds; however, these speeds cannot be guaranteed as Intel® only
certifies the speed of the memory controller up to 2133MHz for Skylake and
2400MHz for Kaby Lake-S.
6. 24-pin ATX power connector
The main power for the motherboard is located on the right side of the board
and perpendicular to the PCB; this is also described as a "Vertical" connector
(See Page 42 for more specifics to the connector itself, and associated
wiring/pinouts). The 24-pin connector IS directional and the connector needs
the tab on the socket line up with the release clip located on the 24-pin
connector from the power supply. This connector pulls the bulk of the power
for all components; other connectors, such as EPS, PCI-E (video card AND
motherboard sides), have been added to reduce the load and increase longevity
due to wiring and trace limitations.
7. 8-pin EPS Connector
The EPS is dedicated power for the CPU (See Page 43 for more specifics to the
connector itself, and associated wiring/pinouts). Carefully choose the correct
power cable by consulting with the installation manual for your power supply.
This connector is designed only to work with an EPS or CPU cable. System
builders may make the mistake of plugging in a PCI-E 8-pin or 6+2-pin
connector, which will prevent the board from POSTing and possibly short or
damage the board; although the cables appear similar, they are wired differently
and attaching a PCI-E cable to an EPS connector may cause damage to the
motherboard.
Alternatively, if no power cable is connected or detected, the system will not
POST and will hang at POST code "C."
8. Supplemental PCI-E 6-pin Power Connector
There is a 6-pin PCI-E connector at the bottom of the motherboard (See Page
50 for more specifics to the connector itself, and associated wiring/pinouts).
This connector provides dedicated power to the PCI-E x16 slots, augmenting
the power provided by the 24-pin and the GPU directly.
This is optional for a single card solution, but is recommended for SLI, CFX,
and dual-processor video cards.
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