Maintenance and Service Guide HP ProDesk 400 G3 Small Form Factor:
https://hp.it-shop.bg/uploaded/6/5/ProDesk-400-G3-SFF-MSG.pdf
- SSD for OS. E.g. this one: WD Blue 3D NAND 250GB 2,5 inch + SATA kabel.
- HD (7200 rpm) for data. Seagate Barracuda ST2000DM006 2 TB
Requirements HP ProDesk:
DDR4-SDRAM DIMMs
For proper system operation, the DIMMs must be:
- industry-standard 288-pin
- unbuffered non-ECC PC4-17000 DDR4-2133 MHz-compliant
- 1.2 volt DDR4-SDRAM DIMMs
The DIMMs must also:
- support CAS latency 15 DDR4 2133 MHz (15-15-15 timing)
- contain the mandatory JEDEC SPD information
In addition, the computer supports:
- 512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies
- single-sided and double-sided DIMMs
- DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported
All met by this Corsair 8GB DDR4 DIMM 2133 MHz (1x8GB).