Sun Microsystems V40z Server User Manual


 
Chapter 3 Maintaining the Sun Fire V20z Server 3-29
FIGURE 3-24 Removing a Memory VRM
Installation is the reverse of this procedure.
4. Before re-installing the cover on the server, check the routing of all cables for
obstructions.
3.5.10 CPU Voltage-Regulator Modules
The following procedure describes how to remove and replace a CPU
voltage-regulator module (VRM).
3.5.10.1 Before You Start
This procedure covers the original release of the Sun Fire V20z server (chassis part
number [PN] 380-0979), the first updated release (chassis PN 380-1168) and the
second updated release (chassis PN 380-1194) .
The CPU VRM for the second updated release (chassis PN 380-1194) has more
pins than the CPU VRM for the original release and the first updated release.
These VRMs are not interchangeable.
The CPU VRM for the original release of the Sun Fire V20z server can also be
used in the first updated release of the server, as well as in the original release of
the Sun Fire V40z server (chassis PN 380-1010).
The CPU VRM for the second updated release of the Sun Fire V20z server can also
be used in the updated release of the Sun Fire V40z server (chassis PN 380-1206).