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BIOS errors and warnings
The BIOS generates warnings/errors on invalid memory configurations:
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If the BIOS can find a valid memory configuration by disabling plugged-in memory, it does so and
reports a warning during POST. the workstation can still be started. The warning will indicate the
location of the failed DIMM on the system board.
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If there is no way for the BIOS to obtain a valid memory configuration by disabling plugged-in
memory, the BIOS halts with a diagnostics 2006 code for memory error (five beeps and blinks).
DIMM installation guidelines
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Install only HP-approved DDR3 DIMMs
CAUTION: HP ships only DIMMs that are electrically and thermally compatible with this
workstation. Because third-party DIMMs might not be electrically or thermally compatible, they are
not supported by HP.
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Install only HP-approved DDR3 DIMMs. See
http://www.hp.com/go/quickspecs to find DIMMs
that are compatible with the workstation.
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Do not intermix DIMMs of different technologies. ECC Unbuffered DIMMs (UDIMMs), Registered
DIMMs (RDIMMs), and Load Reduced DIMMs (LRDIMMs) are supported on HP Z series
Workstations.
Supported DIMM configurations on page 101 specifies which technologies are
supported on each platform.
CAUTION: DIMMs and their sockets are keyed for proper installation. To prevent socket or DIMM
damage, align these guides properly when installing DIMMs.
102 Chapter 3 Component Replacement Information and Guidelines