FW13 7840u - Which RAM / SSD?

Just ordered a DIY FW13 7840u (yay!)
Which RAM & SSD would be best to pair it with?

For RAM, locally I can find the

  • Kingston Fury Impact 32GB DDR5 RAM (2x16GB) @ 5600 CL40 (KF556S40IBK2-32)
    or
  • Crucial 32GB DDR5 (2x16GB) @ 5600 CL46 (CT2K16G56C46S5).

The Crucial is what Framework uses but the Fury has significantly tighter timings (CL40 and with Intel XMP 3.0 @ 38-38-38)

Basically same price. I am leaning towards the Kingston Fury unless there’s worry of incompatibility / instability


For SSD, locally I can find the

  • Western Digital SN770 2TB (WDS200T3X0E)
    or
  • Samsung 990 PRO 2TB (MZ-V9P2T0BW)

Here, the 770 is what FW uses by default and is also very attractive in regards to price-to-performance.
The 990 is literally +50% the price but is widely regarded as the very best right now.

Usage will be a mixed load of browsing, media consumption and occasional gaming, but the laptop will not be my primary gaming platform.

Does the Samsung justify the price difference for my use case?
Otherwise, I am leaning towards the WD.

Thank you !!! :grin:

I have a 7840u with the same Kingston RAM and Samsung SSD that you listed. I haven’t had any issues with the Kingston RAM. I think for your use case, you probably won’t notice any difference between any of these options for the SSD or RAM.

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On my Framework 13 7840 the Fury Impact in 2x32GB configuration (KF556S40IBK2-64) randomly did not recognise half of the memory. The issue did not occur consistently with either of the sticks nor with either of the memory slots.

So, I sent the Fury back and got the Crucial you are mentioning (2x16GB CT2K16G56C46S5), and haven’t had the same issue since. Don’t know if the amount of memory had anything to do with it, my guess would be no. Would have got Crucial in 2x32GB as well, but it was not available at the time and of course had to get something ASAP :innocent:.

I also have the 990 PRO in 1TB configuration, and for me it has been working fine. I have not run any performance tests so can’t comment on that side of things, but stability wise I’ve been happy with it and have not had any issues. IIRC there was some firmware issue with the 990 itself, so if you get it, best to look that up and consider upgrading the Samsung firmware soon enough.

I hope this helps!

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Do you run Windows or Linux?

I’m pretty sure I read that older Linux kernels have issues with 64 (or more) GBs of total ram but work fine with 32 and below.

Other than that, thanks for your help!

I had Fedora 41 at the time, which was one of the officially supported distributions, so it was not anything like that. Also all of the memory worked more often than not, but on random boots one of the RAM sticks just would not show up anywhere. :man_shrugging:

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My experience is of course only sample of one, so can’t speak for the compatibility in general.

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Would consider sn7100 over sn770. Newer, more efficient, faster, better drive. Price difference is 15 bucks for 2tb drive. That said 770 is solid and maybe you can get some deals. The 850x has dram, but runs hot and is more of a power hog than 7100. Better for desktop imo.

Huge historical Samsung fan for SSD but can’t get over all the continued issues with 980 990 drives. Slowdowns and the like, constant firmware updates.

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The kingston ram is known to work fine and is slightly faster. I’d get whatever you can get the cheapest though.

For the ssd a 990 pro is kind of a waste, we only got pcie4 so you can’t use it’s main feature and it isn’t particularly power efficient. I’d go with the 770 if that is the only other option (maybe get 2x32GB ram for the price difference XD).

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