HP QuickSpecs Z8 G4 Manual page 27

QuickSpecs
System Technical Specifications
Control
Removable Media
Write/Boot Control
Power-On Password
Setup Password
3.3V Aux Power LED on
System PCA
NIC LEDs (integrated)
(Green & Amber)
CPUs and Heatsinks
Power Supply Diagnostic
LED
Front Power Button
Front Power LED
Front Hard Drive Activity
LED
Front ODD Activity LED
Internal Speaker
System/Emergency ROM
Flash Recovery
Cooling Solutions
Power Supply Fans
CPU Heatsink Fan
Chassis Fan
Memory Heatsink Fan
HP PC Hardware
Diagnostics UEFI
Access Panel Key Lock
ACPI-Ready Hardware
Trusted Platform Module
Chip
Integrated Chassis
Handles
Power Supply
PCIe Card Retention
No
Yes, prevents an unauthorized person from booting up the workstation
Yes, prevents an unauthorized person from changing the workstation configuration
No
Yes
A torx driver (T30) is needed to remove the heatsink(s). CPU attached to heatsink via tool-less clip
Yes
Yes
Yes, white (normal), red (fault)
Yes, white
Yes
Yes
Recovers corrupted system BIOS
Air cooled forced convection
2x – Dual Side Inlet Blowers
80mm x 25mm 5-wire PWM for each CPU
Rear: 120mm x 38mm
Front: 120mm x 25mm (PCIe zone)
Front 92mm x 25mm (upper memory bank); Front 80mm x 25mm (lower memory bank)
HP PC Hardware Diagnostics (UEFI) enables hardware level testing outside the operating system on
many components. The diagnostics can be invoked by pressing ESC then F2 upon the PC reboot, and is
available as a download from HP Support.
Yes, prevents removal of the access panel and all internal components including optical and storage
devices
Advanced Configuration and Power Management Interface (ACPI).

Allows the system to wake from a low-power mode.

Controls system power consumption, making it possible to place individual cards and
peripherals in a low-power or powered-off state without affecting other elements of the
system
Yes
Yes, front and rear
Tool-less, rear access direct-connect (blind-mate)
Yes, tool-less
Rear (all)
Middle (full-height cards)
Front (full-length cards with extenders)
c05527763 — DA - 15956 Worldwide — Version 3 — November 1, 2017
HP Z8 G4 Workstation
Page 27