hi @Ethaniel

like you see on my first post is an bench non raid of my nvme on a websit. i did test before and was not that bad speed on the raid. the only thing is one of those 2 nvme i forget to wipe the data (ii used one of them just for an test but both are new).

the vroc is hardware or an intel licence we can add ? i read like we have to pay 100$ this why i am thinking about an licence...

about the slot of my motherboard seriously i am lost because they a 4 slot nvme then 2 i use is the standard on the motherboard. the 2 others are in a assus dimm slot where i have to put my 2 nvme in sandwish and plug it to this asus slot.
what i read from someone (on the manual i am lost) what i am using actualy is line to chip set but the asus dimm slot seem is line to cpu.... but this need to be confirmed...

Probably i am wrong to think that but the same person said if i use the asus dimm slot who is (what he said) i will reduce the performences of the video card (i plane when money to buy an evga 2080 ti ultra overcloked) between 1 to 3%..... i understand by that the slot pci-e 1 (x16) is in direct line to the cpu...
This why i use those actual M2 slots... of course if the guy was right but it was mission impossible for me to check this informations...

here is the manual of my motherboard Z390:
https://www.asus.com/Motherboards/ROG-MA...elpDesk_Manual/

I dont know what you think about that...

since this time i found this link of asrock forum they have crazy performences... What you think about that ? i was trying to understand but was little hard especialy when the english is not my first language. they was talking about VROC too and some use 299 chip but not all of them with better speed than mine with less good NVMe drives.. If understood well.

the link of this post on the asrok forum: (i even make an post but no answer)

http://forum.asrock.com/forum_posts.asp?...e-m2-raid-setup

thank you guys to be here to help me, is not realy my things those new things i dont change computer since many years and must learn all those new options and restrictions

cross fingers youl help me to solve this issue

Do you want to solve the issue, or do you want to not break the array? Can't have both??

I'm replying to your post #11 - that is only a single SSD test you mentioned from first post images, not single test of each drive one at a time and then again one at a time on each controller. You're asking for solutions, but not liking the answers given on how to possibly find the problem.
I only mentioned this test due to your own comment "Maybe one of my 970 is defective"? So I told you how to test each one, and test each slot etc.

To confirm which slot goes to what, download the motherboard manual and look at the block layout, it's generally at the front of the manual.

Lost_N_BIOS 1 of my single 970 pro have better speed than my actual raid 0. i dont make an screen of the bench because i dont had iussue before i make an raid 0. is many hours to install windows 10 :) but i dont test both of them or each slot of the motherboard alone.

i want to check before to do something else the motherboard bios option to see if is not coming from that. i am waiting an feeback of @Ethaniel about what will answer to my questions to see how it can be. probably after that will broke my raid 0 to do some test of each nvme alone or different slots... i dont realy know but actualy i am dispointed of all the money i invest for this result... was probably better to go to an x299 solution but is much more expensive

Yes, but you never tested both SSD by themselves, and you asked "Does one have a problem" So I replied, only you can know if both are OK or one has a problem, by testing each SSD one at a time.

Many hours to install Win10? It takes less than 10 minutes, especially onto an SSD. If you mean after that, installing programs etc, I hear that. Make a backup image of the RAID array and use that to restore once you are done checking things out, easy and quick (I suggest Macrium Reflect, it's easy to use, good software, and free)

You also need to check that block diagram in your manual, and make sure your RAID array disks are both using the same connection method/controller

thank you i will do that after i will receive answer from @Ethaniel is no sence to do that if i can know is because i am limited with this motherboard or if is because i dont activated somthing. yes many hours when i install all my softwares and settings them is alot od data to save and restore this why too i prefer to wait Ethaniel because probably afteert hat i will just use finaly 1 drive waiting the new x399 chip + vroc set and sell my actual motherboard + cpu.

@Fraizer:
Could you please repeat the question I should answer.

I'm sorry, I think I've lost track of what remained unanswered.

they are more of one haha ^^ no problem i copy past my post:

hi @Ethaniel

like you see on my first post is an bench non raid of my nvme on a websit. i did test before and was not that bad speed on the raid. the only thing is one of those 2 nvme i forget to wipe the data (ii used one of them just for an test but both are new).

the vroc is hardware or an intel licence we can add ? i read like we have to pay 100$ this why i am thinking about an licence...

about the slot of my motherboard seriously i am lost because they a 4 slot nvme then 2 i use is the standard on the motherboard. the 2 others are in a assus dimm slot where i have to put my 2 nvme in sandwish and plug it to this asus slot.
what i read from someone (on the manual i am lost) what i am using actualy is line to chip set but the asus dimm slot seem is line to cpu.... but this need to be confirmed...

Probably i am wrong to think that but the same person said if i use the asus dimm slot who is (what he said) i will reduce the performences of the video card (i plane when money to buy an evga 2080 ti ultra overcloked) between 1 to 3%..... i understand by that the slot pci-e 1 (x16) is in direct line to the cpu...
This why i use those actual M2 slots... of course if the guy was right but it was mission impossible for me to check this informations...

here is the manual of my motherboard Z390:
https://www.asus.com/Motherboards/ROG-MA...elpDesk_Manual/

I dont know what you think about that...

since this time i found this link of asrock forum they have crazy performences... What you think about that ? i was trying to understand but was little hard especialy when the english is not my first language. they was talking about VROC too and some use 299 chip but not all of them with better speed than mine with less good NVMe drives.. If understood well.

the link of this post on the asrok forum: (i even make an post but no answer)

http://forum.asrock.com/forum_posts.asp?...e-m2-raid-setup

thank you guys to be here to help me, is not realy my things those new things i dont change computer since many years and must learn all those new options and restrictions

cross fingers youl help me to solve this issue

@Fraizer:
I will try to answer those sentences that I believe are questions. If I miss something, please formulate your questions with question marks at the end of the sentences. That helps me find them more easily.

Zitat von Fraizer im Beitrag #22

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the vroc is hardware or an intel licence we can add ? i read like we have to pay 100$ this why i am thinking about an licence...

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Zitat von Fraizer im Beitrag #22

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about the slot of my motherboard seriously i am lost because they a 4 slot nvme then 2 i use is the standard on the motherboard. the 2 others are in a assus dimm slot where i have to put my 2 nvme in sandwish and plug it to this asus slot.

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Zitat von Fraizer im Beitrag #22

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what i read from someone (on the manual i am lost) what i am using actualy is line to chip set but the asus dimm slot seem is line to cpu.... but this need to be confirmed...

---

Zitat von Fraizer im Beitrag #22

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Probably i am wrong to think that but the same person said if i use the asus dimm slot who is (what he said) i will reduce the performences of the video card (i plane when money to buy an evga 2080 ti ultra overcloked) between 1 to 3%..... i understand by that the slot pci-e 1 (x16) is in direct line to the cpu...

---

Zitat von Fraizer im Beitrag #22

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This why i use those actual M2 slots... of course if the guy was right but it was mission impossible for me to check this informations...

---

Zitat von Fraizer im Beitrag #22

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since this time i found this link of asrock forum they have crazy performences... What you think about that ? i was trying to understand but was little hard especialy when the english is not my first language. they was talking about VROC too and some use 299 chip but not all of them with better speed than mine with less good NVMe drives.. If understood well.

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@Ethaniel

thank you for those precise and perfect answers !

- if i understand well this asus dimm M2 2 slots are connected with the cpu (disable the sata this i dont mind because i have nothing on sata) but if i do that it will reduce the PCI-E of my graphics card from x16 to x8... If i understand well this is just not possible. i will not buy an expensive video card to have an x8... :/

- then if i am not wrong, for an gaming computer, 3d sofwares and normal use i will have better NVMe speed if i dont make an Raid 0... in this case i will plub just 1 samsung 970 Pro 1To. and will sell the other one...

Zitat von Ethaniel im Beitrag #23

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Zitat von Fraizer im Beitrag #22

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since this time i found this link of asrock forum they have crazy performences... What you think about that ? i was trying to understand but was little hard especialy when the english is not my first language. they was talking about VROC too and some use 299 chip but not all of them with better speed than mine with less good NVMe drives.. If understood well.

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I does not seem to me that they tried VROC, they just found it in the menu.

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@Fraizer:
You conclusion is correct. If you are not willing to experiment with various RAID settings then returning the second NVMe drive is the best option in my opinion.

@Ethaniel
if i understand well: i want to try many different settings to get an better gain on speed on my actual nvme raid... If you have other things or settings to make me try please tell me. i would to try to the last try to solve this issue.

please can you answer to this:

Zitat von Fraizer im Beitrag #24

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i dont know if you read all the 4 pages, but it look more of that. they have crazy speek 6000k 8000k etc... some are with and without vrok. But my english at this level (english + tech talking = too much to understand all) is limited to understand all.
on this topic this guy : "parsec" make alot of interesting tests and bios customisations. i fault is something interesting i can apply on my motherboard.

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@Ethaniel ?

@Fraizer:
I could find only one post that might refer to VROC actually being used. A friend of Brighttail is reported to have used RAID on CPU lanes. That indeed sounds like VROC and parsec is referring to it s VROC. Unfortunately however very little details were given. I believe that no other benchmarks involve VROC in that thread, they are just referring to it as an interesting technology to explore.

Most of parsec's recommendations are about using different stripe sizes that were recommended in this thread too, but you did not seem to be interested in experimenting with different stripe sizes.

@Ethaniel i choose 64ko regarding what he said.

my english is not so good but i dont think the bench on this 4 pages post was about test of different strip sizes right ? we can see on page 2 bench about 6k speed when i have 3 other 9K
i faut before that they are using the vrok you talked about. this why i ask you as an expert what you think abouthere post :)

@Fraizer:
Correct, the primary goal of that thread is creating a RAID array using 3 NVMe SSDs on an X299 chipset board. Most of the posts revolve around that topic but they are talking about performance and VROC too.

For optimal performance, stripe size should be the same as the native block size of the drive. Unfortunately it is not usually documented, so the best way of figuring it out is by trying different options. Because each model has different characteristics, benchmarks with other models do not reflect what you should expect with your model.

With only trying one stripe size, you might get lucky, but that does not seem to be the case for you. The best way of finding the optimal settings for your specific system (including all the various hardware and software components) is by trying and benchmarking multiple settings and comparing the results.