Non-Uniform Memory Access (NUMA)
Non-uniform memory access (NUMA) is available on some workstations. NUMA can improve memory
bandwidth and latency for multi-process or multi-threaded applications or workloads. Observed
performance improvements depend on the operating system, customer workload, system
configuration, and the degree to which the applications used are designed to be NUMA-aware/
efficient.
NUMA requires that both processor sockets be populated. Installed memory should be balanced
between both processors for maximum performance.
NUMA is enabled if Memory Node Interleave is disabled in the system BIOS. To do this, press f10
during startup to enter Computer Setup (f10) Utility. Select Advanced > Chipset/Memory. Use the
arrow keys to set Memory Node Interleave to Disable. Press f10 to exit the menu, and then select File
> Save Changes and Exit. Your change takes effect when the computer restarts.
BIOS ROM
The BIOS ROM is a collection of machine language applications stored as firmware in ROM. It
includes functions such as Power-On Self-Test (POST), PCI device initialization, Plug and Play
support, power management, and Computer Setup (f10) Utility.
Go to
http://www.hp.com/go/quickspecs to review the latest BIOS ROM specifications.
22 Chapter 2 System management