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Extremely slow m.2 writes

kmcmurtrie
Rising Star II

‎08-04-2024 11:51 PM

I have a PRIME X670-P WIFI motherboard with two m.2 storage cards.  The read speeds are pretty good (>10GB/sec) but the write speeds for both are awful at 300 to 900 MB/sec.  Did I accidentally create a port conflict?

  • M.2_1 : PCIe 5.0 NVMe card
  • M.2_2 : PCIe 4.0 NVMe card
  • PCIEX16_2 : 10GbE card
  • SATA6G_1 : hard drive
  • SATA6G_2: hard drive
  • SATA6G_3 : front port (unused)
  • SATA6G_4 : CD drive 
  • SATA6G_5 : hard drive
  • SATA6G_6 : hard drive

It's a server so it's using only AMD integrated graphics.

  • CPU: AMD 7900X3D
  • OS: Ubuntu 24.04, kernel 6.8.0
  • RAM: 64GB x 4, DOCP-1 latency, 3600MT/s speed
  • BIOS: Just updated today

lspci:

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14d8
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 14d9
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14db
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14db
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14db
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14dd
00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14dd
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 71)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e7
01:00.0 Non-Volatile memory controller: Micron/Crucial Technology Device 542b
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Upstream Port (rev 01)
03:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
03:08.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
03:0c.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
03:0d.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
05:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Upstream Port (rev 01)
06:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
06:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
06:08.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
06:0c.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
06:0d.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
07:00.0 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01)
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8852BE PCIe 802.11ax Wireless Network Controller
0a:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset USB 3.2 Controller (rev 01)
0b:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset SATA Controller (rev 01)
0c:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset USB 3.2 Controller (rev 01)
0d:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset SATA Controller (rev 01)
0e:00.0 Non-Volatile memory controller: Kingston Technology Company, Inc. KC3000/FURY Renegade NVMe SSD E18 (rev 01)
0f:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raphael (rev ca)
0f:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon High Definition Audio Controller
0f:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 19h PSP/CCP
0f:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b6
0f:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b7
0f:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller
10:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b8

 

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Jiaszzz_ASUS
Moderator
Moderator

‎08-08-2024 07:35 PM

Hello @kmcmurtrie ,

We apologize for any inconvenience caused by the delayed response.
According to the PRIME X670-P WIFI user manual, the devices you have installed do not seem to be affected by shared bandwidth.
If you have concerns, you can remove all devices and test the read and write speeds of the system drive and SSD individually.

Regarding the slow SSD read speeds, have you confirmed that all relevant firmware and drivers are updated to the latest versions?
Since the PRIME X670-P WIFI specification page indicates that the supported operating system is Windows, we suggest cross-testing the system drive to see if the issue persists.

Thank you.

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