Part number 4Y37A78837 · also known as 03GX491 · 03LD481
Price: $902.82 USD
ThinkSystem 440-8e SAS/SATA PCIe Gen4 12GB HBA — 8-port external SAS HBA, PCIe Gen4 x8.
| ports | 8 |
|---|---|
| family | 440-8e |
| interface | SAS-12G |
| form factor | external |
| component type | hba |
| ports external | 8 |
| controller family | ThinkSystem 440-series |
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Ensure you have the appropriate NVMe RAID FoD license, as only Intel-branded NVMe SSDs are supported for RAID configurations. Additionally, verify that you are using Lenovo-qualified NVMe drives for compatibility and consider updating your firmware with the latest Lenovo Bootable Media Creator ISO. [community thread]
If you're experiencing low write speeds of 15-20 MBps, this may be expected due to the cacheless nature of the 5350 controller, which operates in write-through mode. To potentially improve performance, you can enable the drive cache using the MegaRAID BIOS interface or storcli commands. For significant speed enhancements, consider upgrading to a controller with a cache module. [community thread]
To resolve this issue, check the BIOS settings to ensure the m.2 NVMe drive is set as the primary boot device and that the boot mode for the RAID controller is configured to UEFI. Additionally, update the firmware and drivers for the RAID controller and verify the RAID configuration to ensure it does not conflict with the boot drive settings. [community thread]
Ensure that you are using UEFI boot mode, as Windows Server 2025 requires it and does not support Legacy mode. Additionally, make sure to import the Intel software RAID driver during installation, or consider using the LXPM deployment method, which automatically includes necessary drivers. [community thread]
To successfully configure RAID with the 940 RAID controller, ensure you are using U.3 NVMe drives, as other types are not supported. Additionally, verify that the internal cabling connects the RAID controller to the backplane without any conflicts from onboard NVMe connections. Lastly, adjust the backplane speed settings to U.3 x1 lane speed using the XCC2 GUI. [community thread]