Component Legend Descriptions; Cpu Socket 1700; Pwm Fan Headers; Pwm/Dc Fan Headers - EVGA Z690 CLASSIFIED User Manual

EVGA Z690 CLASSIFIED (121-AL-E698)

Component Legend Descriptions

1. CPU Socket 1700

This is the interface for the Central Processing Unit (CPU), and supports 12
Gen. Intel Core i3, i5, i7 and i9 models compatible with the Intel
®
Socket, based on the Alder Lake-S architecture.
2. Intel Z690 PCH
®
The Platform Controller Hub (PCH) handles the role that was previously held
by the South Bridge. The PCH has 8x DMI lanes (4.0), up to 12x PCIe Gen 4,
and up to 16x PCIe Gen 3 lanes to allocate bandwidth to smaller PCIe slots,
M.2, USB, audio, etc. In simplified terms, the PCH works as a hub for
peripherals that are less bandwidth-intensive.
3. PWM Fan Headers (CPU1 and CPU2)
4-pin fan headers control the fan speed based on a configurable curve or static
percentage. PWM (Pulse-Width Modulation) works by pulsing power to the fan
at a constant rate and sending the RPM signal to the fan's controller via a Sense
cable, rather than adjusting fan speed by increasing and decreasing voltage.
PWM control is preferable because it eliminates voltage-based fan stall points.
See Page 88 for an in-depth breakdown of the PWM controls within the BIOS.
These headers also support 12V. DC fans. However, DC fan speed is controlled
by decreasing voltage to the fan, starting from the default of 100%, or 12V.
When using a 12V. fan, the minimum speed before stall will vary because most
fan motors have a minimum voltage threshold for operation.

4. PWM/DC Fan Headers

These ports may be used with both DC and PWM fans, and may be controlled
via Smart Fan or manually within the BIOS.
5. Pump Headers (3A)
These headers are designed for use with AIO coolers and pumps designed for
PC watercooling. Providing up to a solid 3A of power to the connected device,
this header should help to avoid a common issue where certain AIO or pumps
are not recognized by the system due to insufficient power. These headers may
be controlled via Smart Fan or manually from within the motherboard BIOS.
6. DDR5 Memory Slots
The memory slots support up to four 288-pin DDR5 DIMMs in Dual-Channel
mode. Dual-Channel mode will be enabled only upon using two or 4 sticks of
supported memory; using one or three sticks of memory will lower the board to
th
LGA1700
®
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