Overview
The Dell Precision T5820, T7820, and T7920 workstations are high-performance computing platforms for professional users. By using an M.2 NVMe to SAS/SATA conversion adapter, you can leverage the internal M.2 NVMe interface to connect additional SAS or SATA hard drives for cost-effective storage expansion.
Compatible Models
- Dell Precision Tower 5820
- Dell Precision Tower 7820
- Dell Precision Tower 7920
Required Hardware
1. M.2 NVMe to SAS/SATA conversion adapter
2. SAS or SATA hard drive (2.5" or 3.5")
3. Phillips screwdriver
4. Anti-static wrist strap (recommended)
Installation Steps
Step 1: Prepare the Workstation
Power off the workstation and disconnect all cables. Press the power button for 5 seconds to discharge residual power. Lay the workstation on its side and open the side panel.
Step 2: Locate the M.2 Slot
The M.2 slot on Dell Precision T5820/T7820/T7920 motherboards is typically located between the CPU and PCIe slots. Positions vary by model.
Step 3: Install the M.2 to SAS Adapter
Insert the M.2 NVMe to SAS adapter into the M.2 slot at a 45-degree angle, then secure it with the screw. Ensure the adapter is fully inserted and firmly fastened.
Step 4: Connect the SAS Hard Drive
Connect the SAS data cable from the adapter to the SAS hard drive. Also connect the power cable to the drive.
Step 5: Install the Drive into the Tray
Mount the SAS hard drive into the workstation drive tray and insert it into the drive bay. Ensure the tray latch is securely engaged.
BIOS Setup
Boot the workstation and press F2 to enter BIOS setup:
1. Navigate to System Configuration → SATA Operation
2. Set SATA mode to AHCI or RAID (based on your needs)
3. Verify the new hard drive is detected
4. Press F10 to save and exit
OS Configuration
Windows: Open Disk Management (diskmgmt.msc). The new drive should appear as uninitialized. Right-click to initialize and create partitions.
Linux: Use fdisk -l or lsblk to view the new drive. Use fdisk or parted to create partitions.
Troubleshooting
Issue 1: Drive not detected in BIOS
→ Check adapter insertion, try a different M.2 slot
Issue 2: Windows cannot detect the drive
→ Check Device Manager for missing drivers, update chipset drivers
Issue 3: Drive speed below expectations
→ Confirm SAS drive is used (not SATA), verify adapter supports SAS
Important Notes
• Always power off and discharge static before handling internal components
• Confirm adapter compatibility with your workstation model
• Do not mix SAS and SATA drives in the same RAID array
• Run a full drive test during initial setup
