@Tigger-Puschelpaw - BUpdater (never useful, nor should be used, for anything BIOS related, useless creation by Asus)
EZ Flash - can never be used for mod BIOS, except on limited older boards.

USB Flashback only, bupdater or EZFlash is not used for mod BIOS.

You must use USB Flashback to flash in mod BIOS. BIOS Must be properly named for USB Flashback, and put onto the root of a small 128MB-2GB USB Stick
Here is stock NVME Mod BIOS for P9X79 PRO (Post #115) - [OFFER] P9X79 PRO BIOS Modded for NVMe SSD (8)

This is odd, I've recently got well over a dozen notifications to this thread! Yet there are only 2 replies since my last visit, weird.......

Anyway, it's reminded me to finally test out those new bioses! I'll do that this afternoon seeing as the weather is rubbish today! :P
If I can remember how to do it! lol

Please post your results for us. It is odd about what the recent posts have morphed into being, but I thing the site managers are doing things to put non-pertinent posts to another thread. Just monitoring here. Good information is always important.

Ok, so I've tried the #1 bios Lost n bios linked for me on June 20th.
That shows the NVMe on post & manually setting the vcore & vcssa worked fine :). Didn't try default settings.

So it seems it's the DMI settings that affected vcore? I haven't tried the #2 bios seeing as the #1 one worked, but if you need me to try that one too (Lost n bios), then I will.

ClarenceE
Oh, were a bunch of posts moved to another thread? What were they about?

Apparently they were moved. The fellow had a different machine, but I didn't pay much attention since the issue seemed to not be at all related to P9X79 PRO.

@Assimilator1 - up to you, if you want to see if both are OK or not.

Hello, a happy new year 2,020.

I want to thank @Lost_N_BIOS and @Fernando for the knowledge and help.
I read the whole topic, and decided to do the test with the bios that @Lost_N_BIOS has uploaded in # 204.
It was hard for me to flash bios, apparently the usb memory was very large. Using a 4gb usb memory the result was satisfactory.
As soon as I saw that my bios had "4801-NVME" I did not hesitate and bought a Sabrent Rocket 512gb nvme ssd and a QNINE NVME Adapter with Heat Sink.
I had another problem with the USB when trying to install Windows, but once the UEFI Mod was configured, I could start from the USB memory.
I had another problem with the installation of Windows, apart from removing all hard drives, I had to remove all PCI cards too, the Xfi Fatality pro and a Wifi PCI card. Once windows was installed, I replaced the PCIe cards.
Once Windows was installed, I had the inconvenience that the SSD speeds were not complete, instead of the 3,500mb read / 2,000mb write, I threw 1,700 / 1,700. I started to read and do tests, in the end I moved the ssd nvme to another PCIe and it worked.
Now I have 3,477 mb / 2,525mb.
I have another problem with the 4KiB Q32T1 results, which are less than half, but enough for this week.

SeqQ32T1: 3477mb/s - 2525mb/s
4KiBQ8T8: 1345mb/s - 1374mb/s
4KiBQ32T1: 213mb/s - 150mb/s
4KiBQ1T1: 39mb/s - 146mb/s

Again, my thanks, Bios, for the help, knowledge and skills you have, are a blessing to people like us who don't have enough $$ to change a whole platform. Many thanks.

My sistem: Xeon E5-1680 v2 @4.4ghz + NH D15S, Asus p9x79pro, 32gb (4x8gb) ddr3 2400 cas 11, Gigabyte RTX 2070, Sabrent Rocket 512gb + QNINE NVME Adapter with Heat Sink, 2TB Caviar Black, Xfi Titanium Fatality pro, Asus PCE-N15, Seasonic Platinum 760w, Antec 900 V1.

P.D. Sorry for my bad english, but I am very grateful and I wanted you to know.

@kdjo - Great to see your success! Yes, those 4K's all look bad. Is your partition aligned? if you are not sure, download AS SSD benchmark and select the partition and show me image (or just confirm it says in Green - OK in top left box)
Download is at very bottom, little box/package - https://www.alex-is.de/PHP/fusion/downlo...p?download_id=9

¡Thanks for your help! "Is your partition aligned" I don't know what this is :(

This is the results:

Sabrent
RKT343.1
stornvme - OK (green)
661504K - OK (green)
476.94gb

Seq: 2881 mb/s - 2374.63 mb/s
4k: 34.5 mb/s - 68 mb/s
4K-64Thrd: 1777 mb/s - 2159 mb/s
Acc. Time: 0.122 ms - 0.053ms
Score: 2100 - 2465

These results are different from Crystal Disk Mark

Your welcome! Yes, those look OK, but still 4K is not good, but yes they will always be different since they are different tests. Your partition is aligned (due to green - OK)
Try CDM with Zero-Fill, maybe your particular NVME is not good at testing with compressed data (default is compressed). Go to menu at top, settings, test data and then choose All 0x00 (0-Fill)

Does Saberent have a disk application on their website? Check if you have not already, if they have one, download it, and see if it has a clean function (TRIM), not WIPE

You may also need to look at other users on P9X79 boards results too, if they are similar it may be due to this chipset

-edit-
CDM with Zero-Fill results:
SeqQ32T1: 3460 - 2525
4KiBQ8T8: 1716 - 1362
4KiBQ32T1: 279 - 202
4KiBQ1T1: 115 - 137

I think it improved a little

On Sabrent's web they only have something of a converter.
"Sabrent’s Sector Size Converter (SSC) enables you to change the drive’s sector size, which is necessary under certain data cloning scenarios."

I will see what else I can find about this SSD in p9x79pro, since I believe, in what I have seen in this thread, that many other SSDs nvme have worked correctly on this motherboard.

Are you using latest BIOS for the motherboard?

Not much difference, so this may be a X79 issue, try to find other users CDM NVME results on X79 and see if you see a similar 4K issue trend
I see plenty of users here on all the Asus X79 variants, but not sure how many, if any, have posted NVME benchmark results
I know these two guys will drop you a CDM test for comparison though once they have a second, and maybe can advise you on which PCIE slot is best for your setup too
@paranoid_android @JackSted

Happy new years, my 4k scores are abysmal by design since I run windows software stripe with 2 Samsung 970 drives for large file sequential read speed.
ASSSD:
AS SSD Benchmark 1.9.5986.35387
------------------------------
Name: Samsung SSD 970 EVO 500GB
Firmware: 2B2Q
Controller: secnvme
Offset: 16384 K - OK
Size: 465.76 GB
Date: 01-01-2020 08:16:46
------------------------------
Sequential:
------------------------------
Read: 4907.82 MB/s
Write: 4465.71 MB/s
------------------------------
4K:
------------------------------
Read: 31.07 MB/s
Write: 54.29 MB/s
------------------------------
4K-64Threads:
------------------------------
Read: 1304.48 MB/s
Write: 1195.85 MB/s
------------------------------
Access Times:
------------------------------
Read: 0.126 ms
Write: 0.068 ms
------------------------------
Score:
------------------------------
Read: 1826
Write: 1697
Total: 4430
------------------------------

Crystal Disk Mark:
------------------------------------------------------------------------------
CrystalDiskMark 7.0.0 x64 (C) 2007-2019 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

[Read]
Sequential 1MiB (Q= 8, T= 1): 7095.994 MB/s [ 6767.3 IOPS] < 1179.91 us>
Sequential 1MiB (Q= 1, T= 1): 4518.643 MB/s [ 4309.3 IOPS] < 231.49 us>
Random 4KiB (Q= 32, T=16): 1190.970 MB/s [ 290764.2 IOPS] < 1759.35 us>
Random 4KiB (Q= 1, T= 1): 29.413 MB/s [ 7180.9 IOPS] < 138.34 us>

[Write]
Sequential 1MiB (Q= 8, T= 1): 4896.911 MB/s [ 4670.1 IOPS] < 1709.37 us>
Sequential 1MiB (Q= 1, T= 1): 3278.607 MB/s [ 3126.7 IOPS] < 318.97 us>
Random 4KiB (Q= 32, T=16): 1055.786 MB/s [ 257760.3 IOPS] < 1947.45 us>
Random 4KiB (Q= 1, T= 1): 57.141 MB/s [ 13950.4 IOPS] < 71.10 us>

@JackSted - Thanks, but is there any way you can test a single NVME drive (have a spare around?) If not, it's OK, maybe paranoid_android will have some similar single drive results he can compare to.