Troubleshooting the Server Module
Servicing Server Module Components
Servicing a Storage Drive (CRU)
Identifying Storage Drive Indicators and Mechanical Components
Service Action Required Indicator
Lever and Lever Release Button
Storage Drive Failure and RAID
Remove Storage Drive Filler Panels
Insert Storage Drive Filler Panels
DIMM Fault Remind Circuit and ECC Errors
Fault Remind Button and Charge Status Indicator
Inconsistencies Between DIMM Fault LEDs and the BIOS Isolation of Faulty DIMMs
Servicing USB Flash Sticks (CRU)
Servicing a Fabric Expansion Module (CRU)
Servicing a RAID Expansion Module (CRU)
Replace a REM Battery on the REM Card
Selecting the Correct Processor Removal/Replacement Tool
Processor Fault Remind Circuit
Fault Remind Button and Charge Status Indicator
Remove a Processor Heat Sink (FRU)
Install a Processor Heat Sink (FRU)
Servicing the Motherboard Assembly (FRU)
Remove Motherboard Assembly Components (FRU)
Install Motherboard Assembly Components (FRU)
Servicing the System Battery (CRU)
Returning the Server Module to Operation
BIOS Power-On Self-Test (POST) Checkpoints
Use these DIMM guidelines and illustrations to help you plan the memory configuration of the Sun Blade X4-2B.
When populating DIMM slots, follow these population rules and guidelines.
Each processor has four DDR3 memory channels (or buses).
Each DDR3 memory channel supports up to three DIMMs for a total of 12 DIMMs per processor.
The server module supports one DIMM per channel, two DIMMs per channel, and three DIMMs per channel across all sockets. Minimum per processor: 1, Maximum per processor: 12.
The minimum supported memory configuration is one DIMM per processor D0.
The maximum supported memory configuration is 768 GB.
Use 8 GB DDR3–1600 LV DIMMs, 16 GB DDR3–1600 LV DIMMs only, and 32 GB DDR3-1600 LRDIMM:
Install up to four memory channels, with three DIMMs per channel.
Install up to 24 DIMMs per server module or up to 12 DIMMs per processor.
For optimal performance, install DIMMs in groups of three sockets per channel.
Always install DIMMs in ascending order, within a color or group following the “farthest from processor first” convention. See the following table:
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The following illustration shows the motherboard, DIMM slot numbering and DIMM slot locations within the Sun Blade X4-2B enclosure.
Rule 1: Always populate the channels as follows. See the following figure.
Fill up all the blue sockets.
Always populate the DIMMs furthest from the processor (blue sockets) first.
Fill up all the white sockets.
Fill up the black sockets.
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The following figure shows the DIMM slot designations and population order for the Sun Blade X4-2B.
This is known as the "fill farthest" approach to DIMM installation.
Rule 2: Memory symmetry across processors is required.
Processor 1 memory must match processor 0 memory, in placement, type, size, capacity, frequency and voltage.
Rule 3: Each processor can support a single DIMM, two DIMMs, three DIMMs or four DIMMs per color socket set.
Rule 4: Within every set of four DIMMs (for example: blue socket set, white socket set, black socket set), mixing/matching of different size, memory speed and voltage is not allowed.
Memories in D0, D3, D6 and D9 must be all the same.
Next, memories in D1, D4, D7 and D10 must be all the same, and so on. While doing this, Rule 2 must be maintained.
Rule 5: Mixing and matching of different size, voltage and speed across different 4 DIMM sets is allowed. For example, memories in D0, D3, D6, D9 (blue sockets) must have the same size. But, they do not have to match memory size/voltage/speed in D1, D4, D7, D10 (white sockets).
Rule 6: The blade must have all LVDIMMs installed. Mixing of different DIMM technology is not supported.
Rule 7: Each processor can support a maximum of 12 dual-rank (DR) DIMMs.
Rule 8: For maximum performance, apply the following rules:
DIMMs can run in one of the following three speeds: 1600 MHz, 1333 MHz, or 1067 MHz.
DIMM speed rules are: (SR = single rank; DR = dual rank; LR = load reduced)
One DIMM per channel or 2 DIMMs per channel = 1600 (or 1333 MHz with E5-2609v2 CPU)
Three DIMMs per channel = 1067 MHz.
Rule 9: The maximum DIMM speed is limited by the processor part number, with the DIMM population, whichever is lower. Currently, processor memory speed limitation is a function of core count:
12-core processors from Intel Xeon processor E5-2600 V2 product family run at a maximum speed of 1600 MHz.
10-core processors from Intel Xeon processor E5-2600 V2 product family run at a maximum speed of 1600 MHz
8-core processors from Intel Xeon processor E5-2600 V2 product family run at a maximum speed of 1600 MHz.
6-core processors from Intel Xeon processor E5-2600 V2 product family run at a maximum speed of 1600 MHz.
4-core processors from Intel Xeon processor E5-2600 V2 product family run at a maximum speed of 1333 MHz.