X670E Extreme encounters issues with dual M.2 drives.
X670E Extreme encounters issues with dual M.2 drives.
Hello Everyone! Have been running an X670E Extreme motherboard for lika a year and decided to add an extra M.2 disk. To do so in the M.2_2 slot you have to activate it in BIOS which i did. ASUS states that it will put PCIE16_1 into 8x which im fine with. It runs smooth for like day or two, then i stop getting display image, has to use IGPU to get in to BIOS and disable the M.2 to get my GPU image back. Am i doing something wrong here? Should i change something more in BIOS to make it work or anything in Radeon software for GPU? A 1200 dollar board should be able to run this i think as my 120 dollar board on media PC does it with no problem. Btw. to use their special hyper deluxe M.2 extension card is not an option as i have rigid tubing running across that connector. Thanks in advance!
The main selling feature is their dimm.2 extension, which aligns with what you should use for M.2 storage on that board. You may need to push the correct PCIe version into that split PCIe16_1 lane, as I've encountered problems with PCIe negotiation on the X670e myself. Since you didn't mention the GPU or drive, it seems you're likely aiming for PCIe 3.0 or 4.0.
Thanks for your message. It seems you're trying to figure out how to use two PCIe slots on your Kingston NV2 M.2 drive and whether the Gigabyte 7900 XTX GPU works with them. You mentioned using an extensian card but faced some confusion. The same drive in M.2_1 worked fine, so you might be able to use both slots now. Regarding 3.0 or 4.0 NVMe, there are specific BIOS settings you can adjust to enable the correct drivers and configurations. Let me know if you need more details!
In that same area with the bifurcation options, you'll see the PCIe version listed for each port. It will default to Auto, including bifurcation settings unless you change it manually. It's likely your GPU isn't properly handling the lane on POST when using Auto, so setting it to 8x8x and PCIe 4.0 could resolve the problem. I still suggest switching to the dimm.2 board, as a 7900 XTX at 4.0 with 8x should maintain performance. Even at 1080p, average loss is around 3%, but it can vary significantly depending on the game and whether extra lanes or bandwidth are important (see graph for 4090 but similar effects apply). NVIDIA GeForce RTX 4090 PCI-Express Scaling - Relative Performance | TechPowerUp
You're asking about the section mentioning "PCIE Link speed." That refers to the specific part discussing the PCIe connection performance. It's not something else entirely. The issue you're experiencing with the image disappearing when the monitor sleeps and then waking it up is unrelated to that section but rather a separate hardware behavior.
PCIe talks have been adjusted to support lower power modes as low as 1.1. Several communication modes exist to conserve energy. Forcing a specific version or turning off certain modes should resolve the problem. It seems the core of the issue lies in PCIe negotiation settings, particularly the bifurcation/configuration changes.
In extreme scenarios, the extension card could appear very low-profile if you skip the large heatsinks. I’ve worked with the SODIMM.2 model on the X570 Impact—its a great addition overall. If not, you might consider alternatives that leverage the chipset instead of relying solely on the CPU’s PCIe lanes. The SABRENT NVMe M.2 SSD to PCIe X16/X8/X4 Card with Aluminum Heat Sink (EC-PCIE) is available on Newegg.com. I think a dimm.2 would look more suitable.
It varies based on airflow around it; good ventilation can make it work. However, PCIe 4.0 M.2 SSDs typically need a heatsink for optimal performance. I've tested a few models myself—my older SM951 AHCI drive ran smoothly without any, but the newer SN770 model got very hot in an Asrock Deskmeet B660 case, as seen in my observations.