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HP Z840 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 Z840: facts

CPUs
up to 2 (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
CPU families
Xeon E5 v3 or Xeon E5 v4 (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
Memory slots
16 (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
Memory types
registered (RDIMM) or load-reduced (LRDIMM) (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
Maximum memory
1 TB (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
Power supply
850 W or 1,125 W (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
PCIe x16 slots
3 (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
Double-wide graphics cards
up to 3 (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
Graphics power leads
3x 6-pin graphics power cables (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
Drive bays
4x 3.5in internal, 2x 5.25in external, 1x slim optical (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))
Weight
22.8 kg (HP Z840 Workstation QuickSpecs, c04400043, Version 42, August 9, 2018 (Wayback capture 2025-02-22))