On an Intel system use rst. Primocache otherwise probably
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Soo… wouldn’t this work well with the newer version of amd’s storemi? Has testing been done on the newer version of that?
It seems like that new one lets you add drives or partitions on drives as cache for other drives, so you could get say the 400gb p5800x and have the first 200gb be for the os and the last 200gb be cache for a very large nand ssd.
You talked a bit about improved game loading times with star citizen, and improved application responsiveness, do you know of any benchmarks showing how big this difference is?
It’s really hard to measure app responsiveness. The easiest demo is probably that powershell script I showed of launching a bunch of programs at once and they all open prettymuch at once.
Any games in mind you are curious about?
I Just received the 400GB version. However I am getting CRC errors with both of the u.2 to pcie adapters I have (Dilinker). However the u.2 to m.2 does not produce the errors. I’m on a Asus x570 Prime Pro w/ 3900x. I will try the latest non beta bios to see if that fixes the issue.
My question was, what u.2 to pcie adapter did you use for your testing?
Thanks for the review.
a cabled adapter will not work. it must be PCB aand the traces must be short. It was a cheap one I ordered from ali express, didn’t even say pcie4 certified. It must be right at the pcie slot, basically. an m.2 adapter will not work. @aBav.Normie-Pleb has a really killer m.2 adapter with eyelit dip switch settings for m.2 adaptation but outside that m.2 to u.2 is almost a non-starter for pcie4 right now.
the pcie carrier card is prettymuch your only option for pcie4 speeds.
I posted a link on youtube which is I believe the same model of the PCB.
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@wendell Thank you for the reply.
What I meant by using the u.2 to m.2 is that it wasn’t producing the CRC errors, but it was definitely slower.
These adapters (u.2 to pcie) worked fine for my p4500 drive.
I also update my bios and I’m still getting the errors.
I watched the video again, and these adapters are similar (in layout) to the one you used. I’m thinking it’s an issue with the AMD platform? Did you notice CRC errors when you used your p5800x with the 5950x?
Thanks,
Iyke
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Update:
Setting that pcie slot to Gen 3, has stopped the CRC error count from increasing.
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PCIe 4 connections need to be almost perfect.
Considering my experiences with PCIe 3 extensions and their crazy error rates (yeah, stop telling me to turn off AER and fix your cable, bah) I don’t think PCIe 4 has any future on anything but direct motherboard connections.
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Yep. The P4500 is pcie3.
Even pcie4 in pcie3 mode is not as good as native Pcie3. It’s the cable/adapter. Take some pics of your setup.
Wendell
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Below is the adapter, and the adapter + drive installed.
I did purchase a different adapter from amazon, just to try it out. The Mfg claims it supports pcie 4.0 (from Ableconn).
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For other interested partys, these are the ones @wendell has mentioned me toying with:
M.2-to-U.2 adapting for PCIe 4.0 x4 is really a pain in the butt due to shitty cables - begging Wendell to open a Level 1 Techs cable store was without fruition 
I currently have the PCIe Gen4 redriver M.2 adapter project on pause since I have to change the GPU and CPU cooling of the two systems I want to use them with to watercooling since the standard air coolers physically block the cable routes these adapters would need.
(These damn M.2 adapters lead the cables out “the back”, not “the front” - unlike every other M.2-to-U.2 adapter I’ve seen so far)
If all is done I plan to create a dedicated thread for these to help other users avoiding this frustrating oddyssey (be able to use PCIe Gen4 x4 U.2 SSDs in a backplane with about 0.5 m cabling without PCIe errors when under load).
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Addition:
You can also experiment a bit with copper tape 
(Shielding “exposed” connector/socket wires/traces from external RFI - BUT OF COURSE BE CAREFUL NOT TO SHORT ANYTHING)
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Doesn’t really matter, any game that shows a difference I guess. Star citizen and Gta are famous for loading times, but anything goes.
Update: The new adapter works fine, I am not getting any errors with the pcie slot in Gen 4 mode. Not only that, but the speeds are much more stable, 
.
I bought the adapter from amazon, MFG name is “Ableconn”. Their documentation said that it was pcie 4.0 compliant. Picture below.
Thanks again,
Iyke
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Looks like the StarTech AIC… that’s the card I have. P5800X arrives today. WRX80 MOBO tomorrow… should be an interesting build. Curious about StoreMI vs PrimoCache.
I feel silly quoting myself - but after a quick read of StoreMI, it is limited to HDD devices connected directly to the MOBO via SATA.
That sucks since Enmotus, the developer behind StoreMI has had a product called “FuzeDrive” where you could combine two drives, no matter if SATA/AHCI or PCIe/NVMe and it was for you to decide which one was the fast, which one the “storage” tier.
I always find it sad to see a regression in technological levels personal consumers can easily get, something like a “dumbing down”. Just like that thing that has been happening with Social Media and human society in general for the last ten years 
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Have anyone seen any test online for these units on older hardware, like pcie gen3?
Would be nice to see how how much it bottleneck if used to retrofit an server on a bit older hardware?
Subjective review.
Going from an 905p to a p5800x makes my day to day computer usage, mostly a crap ton of browser tabs significantly snappier.
Wasn’t actually expecting to see very much of a difference.
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