EVGA Z270 Classified-K User Manual page 20

EVGA Z270 Classified – K (134-KS-E279)
16. PCI-E Slot x8
PCI-E x16/x8 slots are primarily for video cards. These full-length slots will
provide up to 8 lanes of bandwidth to a full-size card, and backwards
compatible with x8, x4, and x1 length cards.
This slot is limited to a maximum of 8 lanes as it shares bandwidth with the
primary PCI-E x16 slot 2 (PE2). This slot is primarily recommended for
secondary video cards, such as the 2nd card in a SLI configuration, or a PhysX
card.
* Please see the description for Physical (length) vs Electrical (lanes) on Page 24.
17. PCI-E Slot x16 (x1 Electrical)
PCI-E x16/x1 Electrical is pulled from the PCH, rather than the CPU. This
slot would be used for PhysX in an SLI setup, or any other card that will work
on a single PCI-E lane.
* Please see the description for Physical (length) vs Electrical (lanes) on Page 24.
18. PCI-E Slot x1
PCI-E 1x is the smallest form-factor PCI-E card slot. They are all one lane and
are used for low-bandwidth products.
Conflict: PCI-E slot 3 (PE3) and slot 5 (PE5) sometimes share PCH lanes with
M.2 Key-M 80mm. As a result, these devices can be mutually exclusive and
must be enabled/disabled in the BIOS. See Page 26 for a more in-depth
breakdown.
19. Power Button
This is an onboard power button, and may be used in place of, or in
conjunction with, a front panel power button wired to the board.
Benching systems, or test benches before final assembly, are best served by
using the onboard power because it removes the need to wire a Power/Reset
button or cross posts with a screwdriver, which is a semi-common practice.
This button provides a safer and easier option than jumpering the Power posts.
20. Reset Button
This is an onboard system reset button, and may be used in place of, or in
conjunction with, a front panel system reset button wired to the board.
Benching systems, or test benches before final assembly, are best served by
using the onboard power because it removes the need to wire a Power/Reset
button or cross posts with a screwdriver, which is a semi-common practice.
This button provides a safer and easier option than jumpering the Power posts.
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