Pcie Slot Breakdown; M.2 Slot Breakdown - EVGA Z790 DARK K NGP N User Manual

EVGA Z790 DARK K|NGP|N (121-RL-E799)

PCIe Slot Breakdown

PCIe Lane Distribution
PE1 – x16/x8/x0 (Gen5, x16 lanes from CPU, x8 shared with PE2)*

PE2 – x16/x8/x0 (Gen5, x16 lanes from CPU, x8 shared with PE1)*

PE3 – x4 (Gen4, x4 lanes from PCH)


M.2 Slot Breakdown

M.2 Lane Distribution
M.2 Key-M (110mm, Top, M.2_1) – Gen4 x4 from CPU

o This slot supports PCIe M.2 SSDs / Intel
M.2 Key-M (110mm, Middle, M.2_2) – Gen4 x4 from Z790 PCH

o This slot supports PCIe M.2 SSDs / Intel
M.2 Key-M (110mm, Bottom, M.2_3) – Gen4 x4 from Z790 PCH

o This slot supports PCIe M.2 SSDs / Intel
M.2 Key-E (32mm) – Gen1 x1 from Z790 PCH

o This slot is pre-installed with the EVGA Wi-Fi/BT Module
*
When only one PCIe device is installed between PE1 and PE2, the motherboard will
auto-switch x16 CPU lanes to the PCIe slot where the device is installed. If PE1 and
PE2 each have a PCIe device installed, the bandwidth will be split x8/x8.
To illustrate, imagine that you install a single graphics card in the system:

If installed in PE1, PE1 will use x16 lanes and PE2 will default to x0 lanes.

If installed in PE2, PE1 will default to x0 lanes and PE2 will use x16 lanes.

If two graphics cards are installed, populating both PE1 and PE2, both slots will
use x8 lanes.
Optane.
®
Optane
®
Optane
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