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HP Z4 G4 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.

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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 Z4 G4: facts

CPUs
up to 1 (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
CPU families
Xeon W-2100, Xeon W-2200, Core X 7000, Core X 9000 or Core X 10000 (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Memory slots
8 (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Memory types
registered (RDIMM) or unbuffered (UDIMM) (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Maximum memory
512 GB (512 GB with Xeon W-2200; 256 GB with Core X 10000) (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Memory note
Core X configurations take non-ECC unbuffered DIMMs only; Xeon W configurations take ECC registered DIMMs only (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Power supply
465 W, 750 W or 1,000 W (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
PCIe x16 slots
2 (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Double-wide graphics cards
up to 2 (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Graphics power leads
4x 6+2-pin (1000 W PSU, Xeon W and Core i9-X); 2x 6+2-pin (1000 W PSU, Core i7-X); 2x 6-pin (750 W); none (465 W) (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Drive bays
2x 5.25in external, 2x 2.5/3.5in internal (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)
Weight
11.3 kg (HP Z4 G4 Workstation QuickSpecs, c05527757, Version 62, January 7, 2025)