Go Back   OC3D Forums > [OC3D] Customer Care Forums > Asus UK Customer Care Forums
Reply
 
Thread Tools Display Modes
 
  #1  
Old 07-12-18, 11:10 AM
tolagarf's Avatar
tolagarf tolagarf is offline
OC3D Crew
 
Join Date: Jun 2013
Location: Denmark
Posts: 810
Slightly Confused About M.2 on Asus X99-WS/IPMI

I'm trying to figure out if using the available M.2 slot on my motherboard, the Asus X99-WS/IPMI will cause SATA ports SATA6_G5 and G6 (SATA Express connector) to be disabled when a M.2 NVMe card is used in the slot.

According to the manual is says nothing about it at all. Not what I can find anyway. However on the product page from ASUS it mentions the following at the bottom with the specifications in the note section:

Quote:
*6 with M Key, type 2260/2280 storage devices support (SATA/PCIE mode), M.2 Socket 3 shares bandwidth with SATAExpress
So what does that actually mean? I would assume it means if both the SATA ports belonging to the SATA Express port and the M.2 are populated, they'd share that bandwidth? Does this mean they would have to fight over IO access, or is this not even a problem? I have two HDD running in RAID1 on those ports, fyi.

Reply With Quote
  #2  
Old 07-12-18, 12:29 PM
AlienALX's Avatar
AlienALX AlienALX is offline
OC3D Elite
 
Join Date: Mar 2015
Location: West Sussex
Posts: 11,568
NVME uses lanes.

M.2 SATA uses SATA ports.

At least that is how I understand it. So it depends on your drives as to whether they will use lanes, SATA or both.
__________________
He used to do surgery
For girls in the eighties
But gravity always wins



Reply With Quote
  #3  
Old 07-12-18, 12:33 PM
tolagarf's Avatar
tolagarf tolagarf is offline
OC3D Crew
 
Join Date: Jun 2013
Location: Denmark
Posts: 810
Quote:
Originally Posted by AlienALX View Post
NVME uses lanes.

M.2 SATA uses SATA ports.

At least that is how I understand it. So it depends on your drives as to whether they will use lanes, SATA or both.
Yes exactly. Since the SSD is a PCI-e NVMe M.2, it shouldn't use SATA. And that's how it usually works on Asus boards, that if you run it in SATA mode that would disable the SATA Express port (or two SATA ports). It's just the way they mention it, it sounds like they would have to fight over bandwidth no matter what.

Of course I could test it out...
Reply With Quote
  #4  
Old 07-12-18, 12:44 PM
AlienALX's Avatar
AlienALX AlienALX is offline
OC3D Elite
 
Join Date: Mar 2015
Location: West Sussex
Posts: 11,568
I remember doing stupid hours of research into this, and it's about as clear as a glass of mud. I think some of it depends on whether the drive has a controller on it as well.

But aye, "Suck em and see" is probably the best way to find out lol.
__________________
He used to do surgery
For girls in the eighties
But gravity always wins



Reply With Quote
  #5  
Old 07-12-18, 04:13 PM
tolagarf's Avatar
tolagarf tolagarf is offline
OC3D Crew
 
Join Date: Jun 2013
Location: Denmark
Posts: 810
Test done. Turns out the ports are deactivated when a M.2 occupy the slot. Well I guess I might as just install my ASUS X99-A motherboard as it doesn't have that problem, instead it deactivates PCI-e x16_4 slot when a M.2 is installed, however it's an Ultra M.2 slot even
Reply With Quote
  #6  
Old 07-12-18, 04:39 PM
tinytomlogan's Avatar
tinytomlogan tinytomlogan is offline
The Guvnor
 
Join Date: Dec 2007
Location: TTL Towers
Posts: 20,759
Even SATA ports are using PCIE dude. Its all how the chipset works.

Basically it can disable or share bandwidth with Sata 5 and 6
__________________
If you recommend a product LINK THE REVIEW


Get along or run along. Your choice
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump










All times are GMT. The time now is 07:05 AM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.