Low-Voltage Dimm Considerations - Cisco UCS B200 Installation And Service Note

S e n d d o c u m e n t c o m m e n t s t o u c s - d o c f e e d b a c k @ c i s c o . c o m
Table 6
Cisco Product ID
UCS-MR-1X041RX-A
UCS-MR-1X162RX-A
UCS-MR-1X162RY-A
A02-M316GB1-L
1. This DIMM requires UCS capability catalog version 1.0.37 or later.
2. Low voltage DIMMs require Cisco UCS Manager version 1.2(1) or later, and the related BIOS package.
3. 16 GB DIMMs require Cisco UCS Manager version 1.4(1) and UCS capability catalog version 1.0.16 or later, and the related
4. This DIMM requires UCS capability catalog version 1.0.40 or later.
5. This DIMM requires UCS capability catalog version 1.0.50.T or 2.0.1nT or later.
6. No longer sold.

Low-Voltage DIMM Considerations

The server can be ordered with low-voltage (1.35 V) DIMM pairs or standard-voltage (1.5 V) DIMM
pairs. Low-voltage DIMM pairs and standard-voltage DIMM pairs can be mixed in the same server. Note
that this causes the system BIOS to default to standard-voltage operation (Performance Mode). That is,
the server cannot operate in the Power Saving Mode unless all DIMM pairs in the server are low-voltage
DIMMs.
There is a setting in the BIOS Setup utility that you can use to change the DDR memory mode when the
server has all low-voltage DIMMs installed. To access this setting, follow these steps:
Enter the BIOS setup utility by pressing the F2 key when prompted during bootup.
Step 1
Step 2 Select the Advanced tab.
Step 3 Select Low Voltage DDR Mode.
Step 4 In the pop-up window, select either Power Saving Mode or Performance Mode.
•
•
Step 5 Press F10 to save your changes and exit the setup utility, or you can exit without saving changes by
pressing Esc.
OL-22473-02
Cisco Systems Supported DIMMs for M2 Servers
Description
4 GB DDR3 1333 MHz RDIMM PC3-10600 single rank/Low Voltage
16GB DDR3 1333 MHz RDIMM PC3-10600 dual rank/ Low Voltage
16GB DDR3 1333 MHz RDIMM PC3-10600 dual rank/ Low Voltage A
16GB DDR3 1066 MHz RDIMM PC3-8500 quad rank/Low-Dual Volt
BIOS package.
Power Saving Mode–Enables low-voltage memory operation. This setting is available only if all
DIMMs installed are low-voltage DIMMs.
Performance Mode–Disables low-voltage memory operation. If you mix low-voltage DIMM pairs
with standard-voltage DIMM pairs, the system defaults to this setting.
Cisco UCS B200 Blade Server Installation and Service Note
Removing a Blade Server Cover
4
5 6
5 6
23