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Low performance for my PCIe SSD Intel 900P

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Nightlane View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nightlane Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2023 at 10:09pm
Originally posted by cx5 cx5 wrote:


The 1st link is OK good buy.

The 2nd link is too long, will clash with ram for space, can't clear the ram height. Must get just PCIe4x length to clear ram.


memory calculator...
https://cdn.discordapp.com/attachments/1072856367632760942/1073586561360330803/image.png

the zenmanager data...
https://cdn.discordapp.com/attachments/1072856367632760942/1073604709274894446/image.png
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nightlane Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 2023 at 2:07am
how do you know the right value for the tRfc?

zen says 350, while the dram calculator says otherwise.


BTW, I have already installed the 900P into M2_1, while the Samsung disk is on the M2_2. I had to cut a bit of the pcie 4x to 16x conversor, just the final board ending "L".

Samsung, from: https://cdn.discordapp.com/attachments/1072856367632760942/1073661641528443033/kkkkk_2_-_despues_miniport_y_blabla_SetupNVME.exe_-_as-ssd-bench_Samsung_SSD_970_01.02.2023_13-59-02.png
to: https://cdn.discordapp.com/attachments/1072856367632760942/1073661672062992484/image.png
900p from: https://cdn.discordapp.com/attachments/1072856367632760942/1073661945921683616/4_-_tras_pasarlo_a_ranura_PCIE_x8_compartido_con_GPU.png
to: https://cdn.discordapp.com/attachments/1072856367632760942/1073662027945496616/image.png
900 (crystalclear) from: https://cdn.discordapp.com/attachments/125359661540048896/1073589461880938546/image.png
to: https://cdn.discordapp.com/attachments/1072856367632760942/1073665198466023504/image.png

what do you think...
the access time is not better nor worse, the 900p now have much higher random writing speed... not sure if all this mess is worth it.

So, why is it not better? maybe because of the CPU or motherboard? drivers?
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cx5 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cx5 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2023 at 9:13am
Originally posted by Katana1074 Katana1074 wrote:

Hi there I have an Intel 900p pcie ad in card they are pcie 3.0 based

here's a link to my asssd score if it helps any...

https://imgur.com/mmceU7V


Hi @Katana1074 , Thanks for sharing your Optane900p benchmark, can you also let us know what other hardware it was running? CPU? ram? or anything you'd think that would be related?

@Nightlane
I recall my benchmark also 6000+ score in AS SSD benchmark, especially remember was the read is obviously higher than write, rounded values for easy rememberance, my read was no more than 2500MB/s and write was around 2000MB/s. My access time was around the 0.01x millisecond, I need to go home dig out some old records or else redo a benchmark to see. Please wait. I had 1700x then to 3800x, then ram from 1500Mhz to 1800Mhz, I'd think the cpu1700x+ram1500Mhz benchmark of Optane900p would loose a bit to 3800x+ram1800Mhz.
x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz
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cx5 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cx5 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2023 at 9:19am
Originally posted by Nightlane Nightlane wrote:


memory calculator...
https://cdn.discordapp.com/attachments/1072856367632760942/1073586561360330803/image.png

congratulations, your XMP is obviously working now, you've got your money's worth.



If you itch to overclock the timing then try using 1usmus's dram calculator suggested value, it might work, it might not work. They are suggestions only, never take them as absolute. Sometimes manually increase 1usmus's suggested value +2 on tRC and tRAS solves some problems [experiences of many users].
Originally posted by Nightlane Nightlane wrote:


the zenmanager data...
https://cdn.discordapp.com/attachments/1072856367632760942/1073604709274894446/image.png
x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz
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cx5 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cx5 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2023 at 9:32am
Originally posted by Nightlane Nightlane wrote:

how do you know the right value for the tRfc?
zen says 350, while the dram calculator says otherwise.


From your zentiming 1.2.9
the 350 is ns = nanosecond, we cannot key in this to bios.

while the tRFC=560 is timing cycle, I suspect this is from your ram's original XMP parameters. We can key this into bios. As well as tRFC2 and tRFC4.

Dram Calculator 1.7.3 is suggesting tRFC=416 for you. There's a lot other parameters, so you have to look at them patiently and carefully to catch their difference, and read my prvious post about using the "additional calculators" to get tRFC2 and tRFC4, because it is not provided in main page.

Edited by cx5 - 13 Feb 2023 at 9:45am
x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cx5 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2023 at 9:44am
Originally posted by Nightlane Nightlane wrote:

while the Samsung disk is on the M2_2.
900p from: https://cdn.discordapp.com/attachments/1072856367632760942/1073661945921683616/4_-_tras_pasarlo_a_ranura_PCIE_x8_compartido_con_GPU.png
to: https://cdn.discordapp.com/attachments/1072856367632760942/1073662027945496616/image.png

what do you think...
the access time is not better nor worse, the 900p now have much higher random writing speed... not sure if all this mess is worth it.

So, why is it not better? maybe because of the CPU or motherboard? drivers?


Good job cutting the end L to clear the ram !!!

M2_2 is gen2 speed, obviously speed will drop. It's expected.

regarding 900p access, please try a few more days, make sure all connectors are good and tight etc, try not to cross power cables over signal PCB traces [interference] (easier said than done, I know....)

A final setup that you've not yet tried/use is put 900p in pcie2 and GPU in pcie3 without the samsung970 at all. This to elimiate the possibility of M.2adaptor bad quality or the pcie male to pcie female riser bad quality or interferance from too many power cables flying around or components etc.
x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz
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Katana1074 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Katana1074 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2023 at 6:24pm
Originally posted by cx5 cx5 wrote:

Originally posted by Katana1074 Katana1074 wrote:

Hi there I have an Intel 900p pcie ad in card they are pcie 3.0 based

here's a link to my asssd score if it helps any...

https://imgur.com/mmceU7V


Hi @Katana1074 , Thanks for sharing your Optane900p benchmark, can you also let us know what other hardware it was running? CPU? ram? or anything you'd think that would be related?

@Nightlane
I recall my benchmark also 6000+ score in AS SSD benchmark, especially remember was the read is obviously higher than write, rounded values for easy rememberance, my read was no more than 2500MB/s and write was around 2000MB/s. My access time was around the 0.01x millisecond, I need to go home dig out some old records or else redo a benchmark to see. Please wait. I had 1700x then to 3800x, then ram from 1500Mhz to 1800Mhz, I'd think the cpu1700x+ram1500Mhz benchmark of Optane900p would loose a bit to 3800x+ram1800Mhz.


specs are now in my signature regards
CPU: RYZEN 7950x | Motherboard: ASROCK X670E TAICHI | GPU: MSI RTX4090 LIQUID X 24GB | RAM: FURY X DDR5 C40 | Hard Drive: INTEL OPTANE 900P 480GB,1 x SAMSUNG 980 PRO 2TB,2 X ADATA S8200X 2TB
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cx5 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2023 at 8:16pm
hohoho nice rig @Katana1074, thanks for spec !!!! I think that's why your results are best amongst 3 of us.
x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cx5 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2023 at 9:44pm
My optane900p worst score is using pcie5(gen2 through x370promontory chipset).

Pay attention to 4k-64thread is the key bottleneck performance lost.

old CPU 1700x from 2017
      access           4k-64thrd           Score
      read    write    read      write       
pcie5 0.153ms 0.044ms 277MB/s   529MB/s   1279

pcie3 0.022ms 0.037ms 2211MB/s 806MB/s   5044 with optane driver could be this bad too
pcie3 0.022ms 0.037ms 2277MB/s 821MB/s   5164 without optane driver, using microsoft nvme driver
pcie3 0.022ms 0.037ms 2869MB/s 796MB/s   6038 without optane driver, using microsoft nvme driver



*Upgraded cpu 3800x @ 2020
*benchmark @ 2021-sept-2nd manual bios gen3pcie2 gen2m.2_1empty
*may have overclocked the CPU to get good scores.
Ram is GALAX HOF 3600MT/s 1800Mhz original XMP
      access           4k-64thrd           Score
      read    write    read      write       
pcie2 0.016ms 0.024ms 2432MB/s 1976MB/s 6675

m.2_1 0.018ms 0.026ms 2322MB/s 967MB/s   5550 2023-feb-13 optane driver plus firmware update to 2010603 defrag optimized
adaptors/convertors
ram @ 3333MT/s ram @ 1666Mhz Corsair CMK32GX4M2B3000C15 not using Galax HOF
x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz
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cx5 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cx5 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Feb 2023 at 12:12am
I retried cheap thin grey color 15cm long cable + socket length = 20cm extension cable, lost sequential read nearly 1000MB/s and write 500MB/s

      access           4k-64thrd           Score
      read    write    read      write       
20cm 0.018ms 0.026ms 1580MB/s 1042MB/s 4336

may be expensive thick cable works ??? i.e. CAT5 cables looses out to CAT7 cables only at very long runs, like in this case was supposed to be 5cm direct to CPU because 25cm and extra sockets sockets connection not perfect.

no amount of overclock can recover the lost of long signal cables in this case high speed bitrate sensitive data.

Edited by cx5 - 14 Feb 2023 at 12:14am
x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz
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