SkyKiDS
Hello,
 
I want to make it clear which SATA port is shared with M.2 bottom key, 0 or 1.
Let's see the manual, you can see the manual file, 134-KS-E379.pdf, at support page. I am a newbie so linking is disabled even EVGA support page. 

On page 7, Additional Expansion Slots: 2x M.2 Key-M 80mm slot (Shared with SATA 1 for bottom M.2)
On page 17, Conflict: The bottom Key-M slot shares lanes with SATA port 1.
On page 23, M.2 Key-M (80mm, Bottom) – x4 (Shares with SATA Port 1)

By the way,

On page 48, SATA port 0 shares lanes with the bottom M.2 Key-M 80mm port

 
I believe the SATA port 1 is shared with M.2 bottom key, but the manual confuses me. I hope EVGA makes it clear by editing the manual.
Somebody asked it before similary(I cannot link the forum, too), but the thread ended unclearly more than five years ago. I make a new thread so.
 
Thanks.
SkyKiDS

 
New & low post count members do have limits see this thread for details, Rules & limits on new accounts Ultimate Self-Starter Thread For New Members
There is a workaround in that thread to post broken links
 
Yes you are correct, it looks like One of those is in error/ typo 

The first three (pages 7,17 & 23) are saying the same thing, just worded differently & page 48 is different
 
 
You can Email your question to Support@EVGA.com
 
 
I found this older Post ---> https://forums.evga.com/FindPost/2824520

Tech_JoseC
Hello Darksys!
 
The top M.2 slot will pull bandwidth from your available PCIE lanes and your bottom M.2 slot will pull bandwidth from SATA port 0. So you will have a total of 5 open SATA ports.
 
You can find more information on page 17 of your motherboard's manual here https://www.evga.com/support/manuals/files/134-KS-E379.pdf
 
If you have any other questions give us a call at 1.888.881.3842 or email us at support@evga.com :)
 
-Jose C.

 
This post talks about the third (top most) M.2 Key-E (which is for WIFI only)
 
https://forums.evga.com/FindPost/2880384
 

blaise
SATA

magnusfl
were does the 3rd m.2 pull from

SATA Port 1, to use the 3rd M.2 slot you need to disable SATA port 1

 
Manual 370 Classfied K
[link=https://www.evga.com/support/manuals/files/134-KS-E379.pdf]https://www.evga.com/supp.../files/134-KS-E379.pdf[/link]
 (excerpts, with bold added for clarity)
 
p7
 Additional Expansion Slots:
2x M.2 Key-M 80mm slot (Shared with SATA 1 for bottom M.2)
1x M.2 Key-E slot
 
 
p17
10.  M.2 Socket 3 Key-M 80mm
M.2 is an SSD standard, which uses up to four PCIe lanes and utilizes Gen3
speeds. Most popularly paired with NVMe SSDs, this standard offers
substantially faster transfer speeds and seek time than SATA interface
standards. All M.2 devices are designed to connect via a card-bus style
connector, secured by bolting into place, and powered by the connector – rather
than a dedicated data cable and power cable.
This socket will support Key-M devices of 80mm, 60mm, and 42mm length.
Conflict: The bottom Key-M slot shares lanes with SATA port 1. As a result,
these devices are mutually exclusive and must be enabled/disabled in the BIOS.
 
p23
M.2 Slot Breakdown
M.2 Lane Distribution
M.2 Key-M (80mm, Top) – x4
o M.2 Enable/Disable is set within the BIOS
M.2 Key-M (80mm, Bottom) – x4 (Shares with SATA Port 1)
o M.2 Enable/Disable is set within the BIOS
M.2 Key-E (32mm) – x1
o M.2 Enable/Disable is set within the BIOS
 
 
p48
 
 Drive Headers (SATA)
SATA3/6G is the current standard for HDD/SSD/Optical interface. These
cables are the data interconnect for the motherboard. Your
HDD/SSD/Optical interface will still require a separate power connection
from your power supply.
SATA ports on this platform natively support full AHCI and RAID functions.
AHCI is enabled by default, but the controller can be put into RAID mode in
the BIOS. RAID mode supports RAID levels 0, 1, 5, and 10 through the Intel®
controller, and all ports retain full AHCI functionality in RAID mode.
(Probably a Typo & should say Port1)SATA port 0 shares lanes with the bottom M.2 Key-M 80mm port, while SATA
ports 4/5 share lanes with PE6.