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HP Z440 on eBay

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Before you buy: wipe any drives that come with it, and ask the seller whether the Windows license is genuine. Asset tags, Computrace and BIOS passwords lock some machines: check the listing for them.

Card memory sizes: Wikipedia (CC BY-SA 4.0).

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CPU GPU
Details Model Price w/ shipping CPUs CPU Cores PassMark $/1k PassMark Memory GPU VRAM Storage OS Win 11 list PSU Price Shipping Condition Format Ships from Price checked Listing title

HP Z440: facts

CPUs
up to 1 (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
CPU families
Xeon E5 v3 or Xeon E5 v4 (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Memory slots
8 (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Memory types
registered (RDIMM) (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Maximum memory
256 GB (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Power supply
525 W or 700 W (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
PCIe x16 slots
2 (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Double-wide graphics cards
up to 1 (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Total graphics power
225 W (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Graphics power leads
2 graphics power cables with the 700 W PSU; none with the 525 W PSU (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Drive bays
2x 3.5in internal, 2x 5.25in external (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))
Weight
13.5 kg (HP Z440 Workstation QuickSpecs, c04400038, Version 36, July 8, 2019 (Wayback capture 2026-10-11; HP's h20195 links for retired QuickSpecs now redirect to a not-found page))