Lenovo ThinkCentre M90q Gen 5 Compatibility — RAM, SSD & Upgrade Guide

Lenovo ThinkCentre M90q Gen 5 Compatibility Guide

The ThinkCentre M90q Gen 5 represents Lenovo’s premium ultra-compact workstation. Armed with Intel’s latest Core Ultra or 14th Gen vPro processors, DDR5-5600 memory, and Thunderbolt 4 connectivity, this tiny machine punches well above its weight for content creation and professional workflows. If you’ve got one of these beauties on your desk, here’s exactly what you can upgrade.

Quick Specs Summary

Can You Upgrade the Processor?

No. The M90q Gen 5 has a soldered processor. Unlike traditional desktop boards, Lenovo’s Tiny chassis integrates the CPU directly. If you need more raw power, you’re looking at replacing the entire machine—not ideal, but a common reality in the world of sub-litre form factors.

RAM Compatibility & Upgrade Path

The M90q Gen 5 ships with DDR5-5600 SO-DIMM memory (laptop-style). You’ve got two SODIMM slots, each supporting up to 32GB, for a theoretical maximum of 64GB. Most units ship with 8GB or 16GB, leaving plenty of upgrade headroom.

Compatible RAM modules: Any DDR5-5600 (or DDR5-4800) 260-pin SODIMM will work. Brands like Kingston, Crucial, and Samsung all play nicely here.

Installation tip: The Lenovo Tiny chassis is genuinely tool-less. Pop off the bottom panel, locate the SODIMM slots (marked clearly), and insert at a 45° angle before levelling down. No screwdriver required—it’s one of the best-kept secrets of the Tiny form factor.

SSD & Storage Compatibility

You get two storage options: an M.2 2280 NVMe slot (speedy, for your OS and apps) and a 2.5″ SATA bay (perfect for bulk storage or backups). Both can be upgraded independently.

Pro tip: Drop a fast PCIe 4.0 drive into the primary slot and use the 2.5″ bay for a secondary archive drive. You’ll never look back.

Power Supply & Thermal Management

The M90q Gen 5 ships with a power-efficient 120W or 135W external power brick (depending on your CPU config). These are sufficient for the integrated Intel architecture. Upgrading the PSU is not typically necessary unless you’re adding significant external peripherals via the Thunderbolt 4 dock.

Display & Docking Connectivity

Three video outputs let you run multiple monitors:

• Thunderbolt 4: Handles display + data + power delivery (up to 96W). Most modern TB4 docks will happily support dual 4K displays.
• HDMI 2.1: Native 4K @ 60Hz or 8K @ 30Hz output.
• DisplayPort 1.4: Supports up to 8K @ 60Hz if needed.

This trio makes the M90q Gen 5 an absolute dream for multi-monitor setups. Dock it via TB4 and you’re golden.

WiFi & Bluetooth Upgrades

The M90q Gen 5 comes with Intel WiFi 6E (802.11ax) and Bluetooth 5.3. Both are excellent standards. Upgrading either is not possible without pulling the motherboard—and honestly, you won’t need to. WiFi 6E is the current sweet spot for wireless performance.

Upgradeability Score

7 out of 10. RAM and storage are easily swappable; everything else is soldered or proprietary. The DDR5-5600 platform is future-proofed for the next several years, and the dual storage approach (NVMe + SATA) gives you flexibility. Just accept that the CPU and other core components are locked down—it’s the price of admission for such a compact form factor.

Frequently Asked Questions

How Much RAM Does the M90q Gen 5 Support?

Up to 64GB total (2x 32GB DDR5-5600 SODIMM). Most will ship with 16GB, so doubling that is straightforward and worthwhile if you’re doing video editing or running virtual machines.

Can I Use DDR4 RAM in the M90q Gen 5?

No. This is a DDR5-only system. DDR4 SO-DIMMs are physically incompatible and won’t fit into DDR5 slots.

What’s the Fastest NVMe Drive I Can Install?

PCIe 5.0 NVMe drives are supported. Look for Samsung 990 Pro or similar flagship options if you want maximum sequential read/write speeds, though most workflows won’t notice much difference beyond PCIe 4.0.

Is Thunderbolt 4 Docking Required?

Not required, but highly recommended. The TB4 port supports display pass-through and power delivery, making it ideal for hot-docking. You can also use the HDMI and DisplayPort directly if you prefer a simpler setup.

Will the M90q Gen 5 Run My Professional Workloads?

Absolutely. With DDR5, Thunderbolt 4, and a premium Core Ultra/14th Gen vPro processor, it’s built for content creation, CAD, and professional workflows. The compact form factor is ideal for space-constrained studios or mobile setups.

Recommended Products

These are the products we recommend based on this guide. All links go to Amazon UK where you can check current prices and availability.

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