New Build with Samsung 950 Pro - Questions

Jrminot

Honorable
Jan 6, 2016
19
1
10,515
So I am building a new PC next week and I had some questions about the Samsung 950 Pro SSD.

Relevant Build Specs:
Motherboard - ASUS LGA1151 DDR4 DisplayPort HDMI SATA 6Gb/s USB 3.1 H170 ATX Motherboards H170 PRO GAMING
Storage (OS)(M.2) - Samsung 950 PRO -Series 256GB PCIe NVMe - M.2 Internal SSD 2-Inch MZ-V5P256BW
Graphics - EVGA GeForce GTX 970 4GB SC GAMING ACX 2.0, 26% Cooler and 36% Quieter Cooling Graphics Card 04G-P4-2974-KR
OS - Windows 10

I am trying to anticipate how utilizing the Samsung 950 Pro in the m.2 slot will affect the other components of the motherboard. I understand the SSD to be an NVMe SSD that utilizes PCIe 3.0 x4. Now, I looked in the motherboard manual and saw that the m.2 slot supports both SATA and PCIe 3.0 x4 modes. It even mentions that if the m.2 slot is utilized in SATA mode, that a SATA slot will be disabled.

Questions:

1. When I get the parts and put the board together with the SSD in the m.2 slot and perform a boot. Is the mode of the m.2 slot automatically detected? I want to install the OS directly onto the 950 Pro but I read somewhere that you need drivers for the NVMe protocol.

2. The manual mentioned that a SATA port will be disabled if the m.2 slot is used in SATA mode, what about PCIe 3.0 x4 mode? It doesn't seem to mention if this affects any of the other PCIe slots.

3. What performance difference is there between using PCIe 3.0 x4 vs. SATA modes for the SSD.

Motherboard Manual: http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/H170_PRO_GAMING/E10499_H170_PRO_GAMING_Guide_WEB_only.pdf

SSD Specs:
http://www.samsung.com/au/consumer/memory-storage/ssd/950-pro/MZ-V5P256BW


Thanks for your time
 
Solution
If you put a PCIe SSD (950 PRO) in there, it will be picked up automatically as a PCIe SSD and no sata ports will be disabled. It also won't disable and PCIe slots thanks to this new chipset providing so many extra lanes.

If you're installing Windows 8 or 10 you don't have to worry about driver games.

The PCIe SSDs are 3-4 times faster than sata SSDs in every respect.

marko55

Honorable
Nov 29, 2015
800
0
11,660
If you put a PCIe SSD (950 PRO) in there, it will be picked up automatically as a PCIe SSD and no sata ports will be disabled. It also won't disable and PCIe slots thanks to this new chipset providing so many extra lanes.

If you're installing Windows 8 or 10 you don't have to worry about driver games.

The PCIe SSDs are 3-4 times faster than sata SSDs in every respect.
 
Solution
1. Yes it is automatic.
2. No it will not affect the other PCIe slots.
3. There is a noticeable difference between NVMe M.2 SSD and a SATA SSD. In real-world usage, the difference is certainly not 3-4 times like it can be in benchmarks, but you can still tell between the two.