All Questions
8
questions
0
votes
2
answers
95
views
Do extra PCIe lanes improve latency?
If you connect a NVME SSD to a PCIe x4 slot it will have a higher maximum bandwith than if you connect it to a 1x or 2x slot. So logically it will transfer large files faster.
But if you never need ...
- 981
1
vote
0
answers
139
views
What is the typical NVME SSD abrubt shutdown reaction time for a CC.SHN event until power loss?
The NVME standard under "7.6.2 Shutdown" defines the procedure for an abrupt shutdown event:
...
- 23
0
votes
1
answer
3k
views
Designing M.2 socket for SSD
I'm designing a card adaptor which converts from M.2 Key E type to M.2 Key M type (to insert an NVMe SSD into a port designed originally for Wifi cards).
I found some reference design for the M.2 KeyM ...
- 969
3
votes
2
answers
6k
views
M.2 Key E - can it host an NVMe SSD?
I found an SBC which has an M.2 socket for WiFi cards. It's keying is E.
I couldn't decide whether I can plug an M.2 NVMe SSD into this socket.
Key E normally has PCIe x2, which is not as fast as ...
- 969
2
votes
3
answers
995
views
Why don't WD NVMe SSDs have PCIe AC coupling capacitors?
I see no coupling capacitors on PCIE TX lanes.
Is it Safe to Remove Coupling Capacitors?
Or
Is it possible to make capacitors into the chip?
Add more photos：
- 31
0
votes
1
answer
686
views
Will a 4 lane PCIe device work if plugged into a PCIe socket the only 1 lane electrically connected
I am designing a motherboard that uses a SMARC format plugin card for the CPU. This card is based on an Intel Atom x6413E CPU. The SMARC CPU card has various interfaces available, including USB2.0, ...
- 101
2
votes
2
answers
1k
views
What is the exact position of the M2 fastener screw's base on the PCB from the slot for 2280 SSD?
I am designing a PCB that uses NVMe m.2 2280 M-Key SSD. I would like to know what is the exact position of the SSD's screw will be located with respect to the SSD slot. The slot that I am using is ...
- 61
3
votes
1
answer
670
views
M.2 PCIe x2 and SATA connections and key/notch with SATA/PCIe x4 SSDs
For my current project I am adding an M.2 slot for additional storage. Even though SATA data throughput is more than sufficient I would like to support both SATA and PCIe based SSDs, as I dont know ...
- 615