Low performance for my PCIe SSD Intel 900P |
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cx5
Senior Member Joined: 15 Sep 2017 Location: Hong Kong Status: Offline Points: 2383 |
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hohoho nice rig @Katana1074, thanks for spec !!!! I think that's why your results are best amongst 3 of us.
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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
Senior Member Joined: 31 Dec 2022 Status: Offline Points: 1310 |
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specs are now in my signature regards |
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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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cx5
Senior Member Joined: 15 Sep 2017 Location: Hong Kong Status: Offline Points: 2383 |
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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. |
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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
Senior Member Joined: 15 Sep 2017 Location: Hong Kong Status: Offline Points: 2383 |
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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 |
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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
Senior Member Joined: 15 Sep 2017 Location: Hong Kong Status: Offline Points: 2383 |
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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].
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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
Senior Member Joined: 15 Sep 2017 Location: Hong Kong Status: Offline Points: 2383 |
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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. |
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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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Nightlane
Groupie Joined: 07 Feb 2023 Status: Offline Points: 410 |
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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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Nightlane
Groupie Joined: 07 Feb 2023 Status: Offline Points: 410 |
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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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Nightlane
Groupie Joined: 07 Feb 2023 Status: Offline Points: 410 |
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ok, I have updated the bios and the memory seems to go much better! I have still to apply the 1.1v, etc... |
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Nightlane
Groupie Joined: 07 Feb 2023 Status: Offline Points: 410 |
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by the way, GPUs should dome with a hole or something to facilitate this type of things...
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