HP Z400 - Workstation User Manual

7. Set the cold plate retention ring on the CPU heatsink mounting base, and then slightly tighten a
single retention screw (see
Installing the CPU heatsink on page 128) as shown in the following
figure.
TIP: Tighten the retention ring screw only one or two turns to keep its corner in place while
allowing the rest of the ring to move.
Figure 5-57 The retention screw
8. Install the LCS cold plate.
a. Remove the plastic cover from the bottom of the cold plate as shown in the following figure.
Figure 5-58 Removing the protective cap
b. Apply thermal compound to the top CPU surface (see Installing the CPU heatsink
on page 128).
120 Chapter 5 Replacing components ENWW

HP Z400 - Workstation Specifications

General

Processor	Intel Xeon W3500 series
Chipset	Intel X58 Express
Memory	Up to 24 GB DDR3 ECC
Storage	Supports SATA drives
Graphics	NVIDIA Quadro or ATI FirePro series
Expansion Slots	2 PCI Express Gen2 x16, 1 PCI Express Gen2 x8
Power Supply	475W
Operating System	Red Hat Enterprise Linux