Dell PowerEdge 1950 Hardware Owner's Manual (PDF) - Page 26

Ensure that the Remote Access Controller, See Troubleshooting System Memory - memory upgrade

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Table 1-8. System Messages (continued) Message Causes Corrective Actions DIMMs must be populated in sequential order beginning with slot 1. The following DIMM is electrically isolated: DIMM x. The specified DIMM is inaccessible to the system due to its location. DIMMs must be populated in sequential order, beginning with slot 1. Populate 2, 4, 8, or 12 DIMMs sequentially beginning with slot 1. See "System Memory" on page 63. DIMMs should be installed in pairs. Pairs must be matched in size, speed, and technology. Mismatched or unmatched DIMMs Ensure that all pairs of memory modules installed; faulty or improperly seated are of the same type and size and that they memory module(s). The system will are properly installed. See "System operate in a degraded mode with Memory" on page 63. If the problem reduced ECC protection. Only memory persists, see "Troubleshooting System installed in channel 0 will be Memory" on page 102. accessible. Dual-rank DIMM paired with Single-rank DIMM - The following DIMM/rank has been disabled by BIOS: DIMM x Rank y Mismatched DIMMs installed; faulty Ensure that all pairs of memory modules memory module(s). The system has are of the same type and size and that they detected a dual-rank DIMM paired with are properly installed. See "System a single-rank DIMM. The second rank Memory" on page 63. If the problem of the dual-rank DIMM will be persists, see "Troubleshooting System disabled. Memory" on page 102. Error: Incorrect memory configuration. DIMMs must be installed in pairs of matched memory size, speed, and technology. Mismatched or unmatched DIMMs installed; faulty or improperly seated memory module(s). Ensure that all pairs of memory modules are of the same type and size and that they are properly installed. See "System Memory" on page 63. If the problem persists, see "Troubleshooting System Memory" on page 102. Error: Memory failure detected. Memory size reduced. Replace the faulty DIMM as soon as possible. Faulty or improperly seated memory See "Troubleshooting System Memory" module(s). on page 102. !!*** Error: Remote Access Controller initialization failure*** RAC virtual USB devices may not be available... Remote Access Controller initialization Ensure that the Remote Access Controller failure. is properly installed. See "RAC Card" on page 71. FBD training error: The following branch has been disabled: Branch x The specified branch (channel pair) Ensure that only Dell-qualified memory is contains DIMMs that are incompatible used. Dell recommends purchasing with each other. memory upgrade kits directly from www.dell.com or your Dell sales agent to ensure compatibility. Gate A20 failure Faulty keyboard controller; faulty system board. See "Getting Help" on page 125. 26 About Your System

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26
About Your System
DIMMs must be populated in
sequential order beginning
with slot 1. The following
DIMM is electrically
isolated: DIMM x.
The specified DIMM is inaccessible to
the system due to its location. DIMMs
must be populated in sequential order,
beginning with slot 1.
Populate 2, 4, 8, or 12 DIMMs
sequentially beginning with slot 1. See
"System Memory" on page 63.
DIMMs should be installed
in pairs. Pairs must be
matched in size, speed,
and technology.
Mismatched or unmatched DIMMs
installed; faulty or improperly seated
memory module(s). The system will
operate in a degraded mode with
reduced ECC protection. Only memory
installed in channel 0 will be
accessible.
Ensure that all pairs of memory modules
are of the same type and size and that they
are properly installed. See "System
Memory" on page 63. If the problem
persists, see "Troubleshooting System
Memory" on page 102.
Dual-rank DIMM paired with
Single-rank DIMM - The
following DIMM/rank has
been disabled by BIOS:
DIMM x Rank y
Mismatched DIMMs installed; faulty
memory module(s). The system has
detected a dual-rank DIMM paired with
a single-rank DIMM. The second rank
of the dual-rank DIMM will be
disabled.
Ensure that all pairs of memory modules
are of the same type and size and that they
are properly installed. See "System
Memory" on page 63. If the problem
persists, see "Troubleshooting System
Memory" on page 102.
Error: Incorrect memory
configuration. DIMMs must
be installed in pairs of
matched memory size,
speed, and technology.
Mismatched or unmatched DIMMs
installed; faulty or improperly seated
memory module(s).
Ensure that all pairs of memory modules
are of the same type and size and that they
are properly installed. See "System
Memory" on page 63. If the problem
persists, see "Troubleshooting System
Memory" on page 102.
Error: Memory failure
detected. Memory size
reduced. Replace the
faulty DIMM as soon as
possible.
Faulty or improperly seated memory
module(s).
See "Troubleshooting System Memory"
on page 102.
!!*** Error: Remote Access
Controller initialization
failure*** RAC virtual USB
devices may not be
available...
Remote Access Controller initialization
failure.
Ensure that the Remote Access Controller
is properly installed. See "RAC Card" on
page 71.
FBD training error: The
following branch has been
disabled: Branch x
The specified branch (channel pair)
contains DIMMs that are incompatible
with each other.
Ensure that only Dell-qualified memory is
used. Dell recommends purchasing
memory upgrade kits directly from
www.dell.com
or your Dell sales agent to
ensure compatibility.
Gate A20 failure
Faulty keyboard controller; faulty
system board.
See "Getting Help" on page 125.
Table 1-8.
System Messages
(continued)
Message
Causes
Corrective Actions