The OptiPlex 5090 Tower is a mid-range business desktop featuring Intel Core i5/i7 11th Gen (Rocket Lake), DDR4-3200 UDIMM memory, and flexible storage options. This guide covers RAM, SSD, and storage compatibility for all configurations.
OptiPlex 5090 Tower System Specifications
| Specification | Detail |
|---|---|
| Processor | Intel Core i5/i7 11th Gen (Rocket Lake) |
| Chipset | Intel Q570 |
| RAM Type | DDR4-3200 UDIMM |
| RAM Slots | 4 DIMM slots |
| Max RAM | 128 GB (4x 32GB) |
| Storage | M.2 NVMe + SATA |
| Form Factor | Tower / Small Form Factor |
| Release Year | 2021 |
RAM Compatibility & Upgrades
Memory Specifications
| Parameter | Value |
|---|---|
| Type | DDR4-3200 UDIMM |
| Voltage | 1.2V |
| Max Capacity | 128 GB (4x 32GB) |
Recommended RAM Upgrades
| Current | Upgrade To | Modules | Price | Amazon Link |
|---|---|---|---|---|
| 8 GB | 16 GB | 1x 8GB DDR4-3200 | £20-35 | View |
| 16 GB | 32 GB | 2x 8GB DDR4-3200 kit | £35-60 | View |
| 32 GB | 64 GB | 2x 32GB DDR4-3200 | £90-160 | View |
Storage Compatibility
M.2 NVMe Storage
OptiPlex 5090 Tower supports 1 M.2 NVMe slot for fast primary storage.
| Specification | Detail |
|---|---|
| Interface | NVMe PCIe 4.0 |
| Supported Sizes | 2230, 2242, 2280 |
| Max Capacity | 4 TB |
Recommended NVMe SSDs
| Model | Capacity | Speed | Amazon Link |
|---|---|---|---|
| Samsung 970 EVO Plus | 500GB – 2TB | 3,500 MB/s | View |
| Crucial P3 | 500GB – 2TB | 3,500 MB/s | View |
| WD Blue SN580 | 500GB – 2TB | 4,150 MB/s | View |
SATA Storage Options
OptiPlex 5090 Tower includes SATA drive bays for additional storage. SATA SSDs offer cost-effective secondary storage at up to 550 MB/s.
| Model | Capacity | Amazon Link |
|---|---|---|
| Crucial MX500 | 500GB – 2TB | View |
| Samsung 870 EVO | 500GB – 4TB | View |
Upgrade Installation Guide
Before You Start
- Power off and unplug the system completely
- Wait 30 seconds before opening the chassis
- Use an anti-static wristband to prevent ESD damage
- Note the Tower / Small Form Factor form factor dimensions when selecting components
RAM Installation
- Open the side panel or chassis cover
- Locate the DIMM slots on the motherboard
- Press retention clips outward on both ends of the slot
- Align the RAM module notch with the slot key
- Press down firmly until retention clips snap into place
M.2 NVMe Installation
- Locate the M.2 slot on the motherboard
- Remove the mounting screw if present
- Insert the NVMe drive at a 30-degree angle
- Press down and secure with the mounting screw
Frequently Asked Questions
Q: What is the maximum RAM for OptiPlex 5090 Tower?
A: 128 GB (4x 32GB) using 4 DIMM slots.
Q: Does OptiPlex 5090 Tower support NVMe SSDs?
A: Yes, it has 1 M.2 NVMe slot.
Q: Can I mix RAM speeds in OptiPlex 5090 Tower?
A: Yes, but all modules will run at the slower speed. Match speeds for best performance.
Q: What form factor is the OptiPlex 5090 Tower?
A: Tower / Small Form Factor. Check physical dimensions before purchasing components.
Recommended Upgrade Kits
| Kit | Components | Price | Amazon Link |
|---|---|---|---|
| Budget RAM | 8GB DDR4-3200 | £16-25 | View |
| Performance RAM | 16GB DDR4-3200 Kit | £30-50 | View |
| NVMe SSD | 500GB NVMe | £35-55 | View |
| Bundle | 16GB DDR4-3200 + 500GB NVMe | £60-95 | View |
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