Durability of NVMe socket?

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powerful owl
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Durability of NVMe socket?

Unread post by powerful owl » Thu Aug 01, 2019 2:17 pm

I notice in the Wiki it says about the SODIMM sockets "According to the socket datasheet, the number of mating cycles is 25 only.
It seems to be a JEDEC standard. So do not install/uninstall your memory cards frequently."

(https://wiki.odroid.com/odroid-h2/hardware/ram)

Does a similar thing apply to the NVMe/PCI socket? If so, swapping NVMe in and out would be a bad idea... I'm just wondering as I got some ex-OEM NVMe drives really cheap and wanted to try some different experiments.

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Re: Durability of NVMe socket?

Unread post by powerful owl » Thu Aug 01, 2019 2:23 pm

Possibly answering my own question, it seems to be 60 cycles - https://www.te.com/commerce/DocumentDel ... DocLang=EN
Could ODroid confirm this is it?

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odroid
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Re: Durability of NVMe socket?

Unread post by odroid » Thu Aug 01, 2019 4:13 pm

Yes, you are right.
But it seems to be a minimal number.

We have a SO-DIMM test bed in our production line to test Samsung DDR4 modules before shipping.
https://www.hardkernel.com/shop/samsung ... 0-so-dimm/
https://www.hardkernel.com/shop/samsung ... 0-so-dimm/
We already plugged/unplugged several hundreds of modules to two H2 boards on the test bed. That two H2 boards are still alive.

Therefore, if you handle the modules very gently, you can use the sockets much longer than the specification probably.
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