Thinkpad P1 Gen 7 4TB Memory Recommendation

[rwelch22]

Just ordered a P1 Gen7 2024 edition. It comes with 2 TB. Desired is to upgraded to 2x 4TB.

Question: Would the WD_BLACK 4TB SN850X NVMe work in the P1 Gen7 ?? Is this double sided or single sided? Spec do not indicate.

Specifications indicate that supported are:
M.2 2280 SSD PCIe® NVMe®, PCIe® 4.0 x4 Performance 512GB / 1TB / 2TB / 4TB

https://psref.lenovo.com/syspool/Sys/PD ... 7_Spec.pdf

Installation states that the 4TB, at least that which Lenovo sells, is double sided.
https://pcsupport.lenovo.com/us/en/prod ... placements

"Before you replace an M.2 solid-state drive, ensure you use the proper thermal pad in the spaces indicated in this diagram. For single-sided M.2 solid-state drives, use a thermal pad with a thickness of 2.25mm. For dual-sided M.2 solid-stated drives, use a thermal pad with a thickness of 0.75mm"

Of course the Lenovo 4TB seems unreasonably expensive at ~$2,000 USD.
https://www.lenovo.com/us/en/p/accessor ... 4xb1q31359

Reddit research is is unclear.
https://www.reddit.com/r/buildapc/comme ... uble_sided

Thus.... asking the experts. (Yes, new to the group. Just recently found.)
Next up... which cooling "pad" is best for an Thinkpad P1 Gen2... my workhorse.

[independent]

"Memory IS Ram!!"

Like you, I would min out the build from the factory unless you need WWAN cos, they won't probs include the antennas otherwise. But yes, the old Thinkpad factory tax is a thing.

https://www.tomshardware.com/reviews/wd ... k-in-black say's the SN850X is singlesided. Those PCIe 4.0 drives sure need some heatsinking.

I always thought those vertical holders a were cool idea (aah pun) for desktop use in regards to extra cooling for your p1g2