Dell Inspiron 16 Plus 7630 Intel Core i7 13700H SSD Speed Slow Fix Windows 11

The SSD in your Dell Inspiron 16 Plus 7630 Intel Core i7 13700H is performing slower than expected – file transfers, application launches, and boot times take longer than a PCIe Gen 4 NVMe SSD should require. Storage controller driver updates and SSD health checks restore full SSD performance on the Dell Inspiron 16 Plus 7630.

This guide covers SSD speed benchmarking, Intel RST driver updates, and SSD health diagnostics for the Dell Inspiron 16 Plus 7630 Intel Core i7 13700H in Windows 11.

“Inspiron 16 Plus 7630 SSD felt slow for a Gen 4 drive. CrystalDiskMark showed only 1800MB/s read instead of expected 6000MB/s. Updated Intel RST driver from Dell SupportAssist. Benchmark jumped to 5800MB/s. Driver was the entire difference.” – Hafzan, software developer from Shah Alam

Why SSD Is Slow on Dell Inspiron 16 Plus 7630

The Dell Inspiron 16 Plus 7630 PCIe Gen 4 NVMe SSD operates through the Intel PCIe Gen 4 controller on the Core i7 13700H platform. The Intel Rapid Storage Technology (RST) driver manages the PCIe NVMe controller and is required for the SSD to operate at Gen 4 speeds (5000-7000 MB/s). Without the Intel RST driver, Windows uses the generic Microsoft NVMe driver which limits the PCIe Gen 4 SSD to Gen 3 equivalent speeds (2000-3500 MB/s) or lower due to command queue depth limitations in the generic driver. This halving of SSD speed slows all storage-intensive operations including boot time, application loading, and file transfers.

• Intel RST driver missing – SSD operating on generic Microsoft NVMe driver at reduced speed
• SSD thermal throttling during sustained transfers reducing sequential speeds
• SSD health degraded with reallocated sectors causing read retry delays
• Windows Superfetch/SysMain writing to SSD during background indexing reducing available bandwidth

Fix 1 – Update Intel RST Driver from Dell SupportAssist

Open Dell SupportAssist and check for Intel Rapid Storage Technology driver update or Intel NVMe driver update. Install and restart. After restart, run CrystalDiskMark to benchmark the SSD. Select 1GB test size and 5 runs. Sequential Q8T1 read should show 4000-7000 MB/s for a PCIe Gen 4 NVMe SSD on the Inspiron 16 Plus 7630. If sequential read is now above 4000 MB/s, the Intel RST driver update resolved the speed limitation. If speed is still below 3000 MB/s with the updated driver, the SSD may be running at Gen 3 PCIe link speed due to a BIOS configuration issue.

Fix 2 – Check SSD Health with CrystalDiskInfo

Download CrystalDiskInfo and run it on the Inspiron 16 Plus 7630. Check the overall health status (Good, Caution, or Bad) and check specific SMART attributes: Reallocated Sector Count (attribute 05), Reported Uncorrectable Errors (attribute BB), and Command Timeout (attribute C1). A Caution or Bad status with elevated bad sector attributes means the SSD is degraded and causing slow operation due to read retry attempts on failing sectors. An SSD with Caution health status should be backed up immediately and replaced before data loss occurs. Slow SSD from degraded health is not fixable by driver updates.

Check PCIe Link Speed in Device Manager

Open Device Manager – Disk drives. Right-click the NVMe SSD – Properties – Details – Bus Type or Connection Type. If it shows PCIe x2 instead of PCIe x4, the SSD is operating at half bandwidth (2 lanes instead of 4). Also check the NVMe SSD’s Properties – Details – Bus reported device description for PCIe Generation indication. For PCIe Gen 4 x4, the SSD should show 4 lanes. A PCIe x2 link speed halves the maximum sequential bandwidth and would explain CrystalDiskMark results significantly below Gen 4 x4 theoretical maximum even with the correct Intel RST driver installed.

Fix 3 – Check BIOS Storage Mode

Restart the Inspiron 16 Plus 7630 and press F2 for BIOS setup. Navigate to Settings – System Configuration – SATA Operation. Ensure it is set to AHCI or NVMe (not Legacy or IDE). Some Dell BIOS configurations have an M.2 slot mode setting that can inadvertently switch from NVMe to SATA compatibility mode after a BIOS update, limiting the PCIe Gen 4 SSD to SATA 6Gbps maximum speeds (550 MB/s sequential read) regardless of the Intel RST driver version installed. Switching back to NVMe mode and restarting returns the SSD to PCIe Gen 4 operation.

Fix 4 – Disable SysMain to Reduce Background SSD Load

Press Windows+R and type services.msc. Find SysMain (formerly Superfetch). Right-click and select Stop, then set Startup type to Disabled. SysMain preloads frequently used application data into RAM by reading from the SSD during idle periods. On an NVMe SSD, SysMain’s background reads rarely impact perceived performance. However, if the Inspiron 16 Plus 7630 SSD is small (256GB) and nearly full (above 80 percent capacity), SysMain can trigger SSD garbage collection and wear leveling that reduces available write bandwidth during active use – temporarily disabling SysMain and checking if SSD speeds improve identifies this as a contributing factor.

Frequently Asked Questions

Why is SSD slow on Dell Inspiron 16 Plus 7630 Intel Core i7 13700H?

Intel RST driver missing – SSD using generic Microsoft NVMe driver at reduced speed. Update Intel RST driver via Dell SupportAssist for full PCIe Gen 4 performance.

How do I check SSD speed on Dell Inspiron 16 Plus 7630?

CrystalDiskMark benchmark – Sequential Q8T1 read should show 4000-7000MB/s for PCIe Gen 4. Below 2000MB/s indicates driver or BIOS mode issue.

Does Dell Inspiron 16 Plus 7630 have PCIe Gen 4 SSD?

Yes – PCIe Gen 4 NVMe SSD slot with 5000-7000MB/s sequential read capability. Intel RST driver required for Gen 4 speeds vs generic driver limitation.

Why does Dell Inspiron 16 Plus 7630 SSD run hot?

NVMe SSD thermal throttle above 70-75 degrees Celsius reduces speeds. Ensure thermal pad contact with heatspreader and use laptop on flat surface for adequate SSD thermal dissipation.

Conclusion

Dell Inspiron 16 Plus 7630 Intel Core i7 13700H SSD slow speed in Windows 11 is resolved by installing the Intel Rapid Storage Technology driver from Dell SupportAssist, which replaces the generic Microsoft NVMe driver that limits PCIe Gen 4 SSD to below-rated speeds. CrystalDiskInfo SSD health check identifies degraded SSD as a non-driver-fixable cause of slow speeds. BIOS NVMe mode verification prevents SATA compatibility mode from limiting the PCIe Gen 4 SSD to 550MB/s SATA speeds. CrystalDiskMark benchmark confirms full Gen 4 performance restoration after driver update.