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July 28th, 2025 20:27
M2 SSD pin mis-alignment
I have a Dell Latitude 5590 that I was upgrading the "2 Power" 500Gb M2 SSD to a 1Tb version by Crucial. Both are M22280 PCIe NVMe units. After upgrading the BIOS to the latest version the new SSD was recognized.
The 500Gb had Windows 11 on it. While changing the drive I was installing LMDE 6. This did breifly recognize the drive during many tries that led me to believe it was a flaky new drive but then I noticed the pin alignment was different.
Looking closely width of each set appears the same and the locating gap was in the same position but the pins don't line up. I'm about to contact the Amazon UK supplier and ask for a refund but before that has anyone seen this before or care to make a comment?
Thanks, Jeff
ragsandsticks
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July 28th, 2025 20:29
Here's close up of the pins
Chino de Oro
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July 29th, 2025 05:56
Your picture appeared to be correct. There is no misalignment. You compared the pins from top side to the pins from bottom side. Top pins are sandwiched alignment with bottom pins as similar as when you crossing fingers from your hands.
For proper pins alignment comparison, you need to place one SSD on top of the other, with the same 5 pins on one side of the M key.
ragsandsticks
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July 30th, 2025 09:23
@Chino de Oro Thanks for taking the time to answer. Really appreciated - Bit of a "Duh!" moment. Of course flipped over and compared they were identical.
I got Chatgpt on the case of the flaky recognition of the ssd. It turned out that the 5590 has PCIe 3 and the ssd was gen 4 and while some gen 4 ssd's can work with gen 3 PCIe the Crucial P310 I'd bought, can't.
I've now ordered a Gen 3 ssd that's coming today. So, User Error x 2.
Regards
Jeff
(edited)