Intro
The HP EliteDesk 800 G3 SFF is a widely used business desktop that offers solid upgrade options when configured correctly. This guide explains exactly which RAM, SSD, and CPU upgrades are supported for the Small Form Factor (SFF) model.
System Overview
| Component | Specification |
|---|---|
| Model | HP EliteDesk 800 G3 |
| Form factor | Small Form Factor (SFF) |
| CPU socket | LGA 1151 |
| Chipset | Intel Q270 |
| RAM type | DDR4 UDIMM |
| RAM slots | 4 |
| Max RAM | 64 GB |
| Storage | 2.5″ SATA + M.2 |
| M.2 support | PCIe NVMe |
RAM Compatibility & Upgrade Options
- Type: DDR4 UDIMM
- Supported speed: 2133–2400 MHz
- Maximum capacity: 64 GB (4×16 GB)
Recommended upgrade:
- 16 GB for everyday use
- 32 GB for multitasking and professional workloads
A compatible DDR4 UDIMM memory kit from a well-known brand such as Crucial is available on Amazon.
SSD / Storage Compatibility
- Primary upgrade: 2.5″ SATA SSD
- Secondary option: M.2 2280 PCIe NVMe SSD
- SATA SSD works in all configurations
- NVMe SSD provides higher performance if slot is available
Recommended capacity:
- 500 GB for general use
- 1 TB for long-term performance
A reliable 2.5″ SATA SSD that works well in this system is the Samsung 870 EVO, which can be found on Amazon.
CPU Compatibility
- Supported CPUs: Intel 6th & 7th Gen
- Compatible examples:
- Core i5-6500 / i5-7500
- Core i7-6700 / i7-7700
- BIOS update may be required for 7th Gen CPUs
Upgrade Limitations
- SFF chassis limits large GPUs
- Power supply limits high-end graphics cards
- No support for CPUs beyond 7th Gen
Quick Summary
- Best first upgrade: SSD
- Upgrade RAM to 16–32 GB
- NVMe supported on SFF model
- CPU upgrades limited to 6th/7th Gen