HP Xw8400 HP xw8400 Workstation - Service and Technical Reference Guide - Page 77

Installing a DIMM, - beep codes

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● Load the memory module pairs in order of size, from smallest to largest. Figure 4-17 Identifying memory slots The BIOS generates warnings/errors on invalid memory configurations. ● If there is no way to obtain a valid memory configuration by disabling some of the plugged-in memory, the BIOS will halt with a diagnostics 2006 code for memory error (five beeps and blinks). ● If the BIOS can find a valid memory configuration by disabling some of the plugged-in memory, it will do so and report a warning during POST ("215-mismatched memory"). The system can still be booted in this condition. Installing a DIMM 1. Disconnect power from the system ( Pre-disassembly procedures on page 50) and remove the access panel (Access panel on page 57). Lay the workstation on its side with the system board facing up. 2. Press the green tab at the base of the memory fan (1) and lift it up (2) to expose the memory modules. Figure 4-18 Rotating the memory fan ENWW Removing and replacing components 67

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●
Load the memory module pairs in order of size, from smallest to largest.
Figure 4-17
Identifying memory slots
The BIOS generates warnings/errors on invalid memory configurations.
●
If there is no way to obtain a valid memory configuration by disabling some of the plugged-in
memory, the BIOS will halt with a diagnostics 2006 code for memory error (five beeps and blinks).
●
If the BIOS can find a valid memory configuration by disabling some of the plugged-in memory, it
will do so and report a warning during POST (“215-mismatched memory”). The system can still be
booted in this condition.
Installing a DIMM
1.
Disconnect power from the system (
Pre-disassembly procedures
on page
50
) and remove the
access panel (
Access panel
on page
57
). Lay the workstation on its side with the system board
facing up.
2.
Press the green tab at the base of the memory fan
(1)
and lift it up
(2)
to expose the memory
modules.
Figure 4-18
Rotating the memory fan
ENWW
Removing and replacing components
67