Dell • Inspiron 15 (2021)

Inspiron 15 3511 Upgrade Guide & Compatibility

Name: Dell Inspiron 15 3511
Brand: Dell

Verified teardown and compatibility specifications for the Inspiron 15 3511 (Model #3511). Review maximum supported RAM, NVMe SSD slot types, battery replacement details, and user-tested parts.

Difficulty moderate

RAM Upgrade ✅ Upgradeable

Max Supported RAM 32GB (2x 16GB) or 64GB community confirmed

Storage Slots 0 Slot

Wi-Fi & Battery Wi-Fi: ❌ • Batt: ❌

Quick Guides: RAM Upgrade Guide → SSD Upgrade Guide → Max RAM Limits → Compatible RAM Modules → Compatible SSDs →

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Memory (RAM) Specifications

Detailed RAM Guide →

Installed Configuration 8GB (1x 8GB)

Maximum Supported Memory 32GB (2x 16GB) or 64GB community confirmed

Memory Type & Speed DDR4 @ 2666MHz / 3200MHz

Slots & Soldered Memory 2 slots (fully replaceable)

Upgrade Analysis:

Two user-accessible SO-DIMM slots. Dell officially validates up to 16GB, but chipset and users confirm 32GB (2x16GB) works seamlessly.

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Storage & SSD Expansion Slots

Detailed SSD Guide →

Storage slot configuration currently being indexed.

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Other Hardware & Serviceability

Wi-Fi Card Soldered

Standard M.2 Wi-Fi module

Battery Replacement Glued / Complex

Internal Li-ion pack held by standard Philips screws.

Community Confirmed Upgrades

0 Verified Reports

Real upgrades tested and documented by owners of this exact model with CPU-Z & BIOS screenshots.

Checking community reports...

💻 Device Specifications

Model Name: Inspiron 15 3511
Model #: 3511
Part / SKU: D560645WIN9B
Processor: 11th Gen Intel Core i5-1135G7 (4C / 8T, up to 4.20 GHz)
Graphics: Intel Iris Xe Graphics
Display: 15.6" FHD (1920x1080) WVA Anti-Glare LED Backlight

🛒 Verified Compatible Parts

Tested and verified to boot without BIOS lock.

Compatible components list being updated.

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📑 Authoritative Sources

Sources record verified.