IBM X3650 M2服务器因为采用了三通道的技术，所以它的内存插法与以前的X3650,X3650M有很大的区别。 IBM X3650 M2服务器有16条内存插槽，而IBM解释说根据英特尔的技术资料，如果两个处理器配满3通道18条内存，则无论采用什么规格的内存都只工作在DDR3 800的频率之下，而当配12条内存时其会工作在DDR3 1066的频率之下，当每个通道只配1条内存时存可以工作在1333MHz的频率之下，因此12条内存是速度与容量的平衡选择。
The 12th generation of PowerEdge™ servers offers a high level of performance in their memory subsystems with offerings that include up to 1866MT/s speed. Critical design and testing elements ensure that Dell server memory achieve the desired speeds.
The loading within a channel significantly affects memory speed. The following tables illustrate the maximum achievable speed based on memory loads:
Green boxes are defaults for performance/per watt
White boxes (with lower voltage) can be chosen to save power but run slower
White boxes (with higher voltage) can be chosen through custom configuration in the bios
DIMM Type
DIMM Ranking
DIMM Rated Voltage, Speed
12th Generation Memory (EP, 3DPC Platforms) *DPC means DIMMs per channel.
1 DPC
2 DPC
3 DPC
1.35V
1.5V
1.35V
1.5V
1.35V
1.5V
RDIMM
1R/DR
DDR3 (1.5V),
1866
1866
1866
1333
RDIMM
1R/DR
DDR3L (1.35V/1.5V),
1600
1600
1600
1600
1600
1066
1333
UDIMM
1R/DR
DDR3L (1.35V/1.5V),
1600
1600
1600
1600
1600
RDIMM
4R
DDR3L (1.35V/1.5V),
1333
1066
1333
1066
1066
LRDIMM
4R
DDR3L (1.5V),
1866
1866
1600
1333*
LRDIMM
4R
DDR3L (1.35V/1.5V),
1600
1600
1600
1600
1600
1066
1333*
*For PowerEdge T620, the speed clocks down to 1066MT/s.
DIMM Type
DIMM Ranking
DIMM Rated Voltage, Speed
12th Generation Memory (EN, 2DPC Platforms)
1 DPC
2 DPC
1.35V
1.5V
1.35V
1.5V
RDIMM
SR/DR
DDR3L (1.5V),
1600
1600
1600
1600
1600
RDIMM
SR/DR
DDR3L (1.35V/1.5V),
1333
1333
1333
1333
1333
UDIMM
SR/DR
DDR3L (1.35V/1.5V),
1600
1600
1600
1600
1600
RDIMM
QR
DDR3L (1.35V/1.5V),
1333
1066
1333
1066
1066
LRDIMM
QR
DDR3L (1.35V/1.5V),
1333
The M420 is a 1DPC platform and has a unique table for speed:
DIMM Type
DIMM Ranking
DIMM Rated Voltage, Speed
12th Generation Memory (EN, 1DPC Platform — M420)
1 DPC
2 DPC
1.35V
1.5V
1.35V
1.5V
RDIMM
SR/DR
DDR3 (1.5V),
1600
1600
1600
RDIMM
SR/DR
DDR3L (1.35V/1.5V),
1333
1333
1333
UDIMM
SR/DR
DDR3L (1.35V/1.5V),
1600
1600
1600
RDIMM
QR
DDR3L (1.35V/1.5V),
1333
1333
1333
LRDIMM
QR
DDR3L (1.35V/1.5V),
1333
DIMM Type
DIMM Ranking
DIMM Rated Voltage, Speed
12th Generation Memory (PEC EP, 2DPC Platforms) *DPC means DIMMs per channel.
1 DPC
2 DPC
1.35V
1.5V
1.35V
1.5V
RDIMM
1R/2R
DDR3 (1.5V),
1866
1866
1600
RDIMM
1R/2R
DDR3L (1.35V/1.5V),
1600
1333
1600
1333
1600
UDIMM
1R/2R
DDR3L (1.35V/1.5V),
1600
1333
1600
1333
1600
RDIMM
4R
DDR3L (1.35V/1.5V),
1333
800
1066
800
800
The Dell 12th generation PowerEdge servers require memory to be populated in a specific order to help ensure correct utilization and optimization of the server. Here are some basic population rules for the Socket R systems:
Dual in-line memory module (DIMMs) should be populated by largest capacity first.
In advanced ECC mode, DIMMs must be populated in matched pairs (same capacity and ranking). Odd numbers of DIMMs are not supported in this mode.
Optimized mode can support even or odd numbers of DIMMs.
For mirroring configurations, each channel must be matched (same capacity and ranking).
Rank sparring requires at least two DIMMs or one quad-ranked DIMM.
eahua_tang
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Community Manager
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2014年10月21日 03:00
速率不是靠内存的数据作为依据的，这个要看服务器支持多少通道，支持多大的内存速率。不清楚你的服务器是什么型号，不过现在的服务器大多在同内存容量及速率上性能都没有多大差异.
udbusrgu
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2014年10月22日 00:00
R720四通道的。好像接的内存越多，内存越要降频的。
eahua_tang
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2014年10月22日 00:00
内存是否降频还得要看CPU是否支持内存的频率。根据服务器是R720，你可以参考以下链接的用户手册第42页开始的内存部份应该有您要的答案。
ftp://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_poweredge/poweredge-r720_Owner%27s%20Manual_zh-cn.pdf
eahua_tang
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1.7K 消息
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2014年10月22日 01:00
不是这样理解的，按照内存是1600Hz，如果CPU支持该频率的话，在一根或两根的情况下都应该是1600Hz，除非自己在BIOS中设置了降频，但如果CPU最高支持1333Hz，那内存也会随着CPU的限制工作于1333Hz中。
udbusrgu
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2014年10月22日 01:00
服务器内存，比如你接一根4GB 1600Hz的内存，他运行在1600Hz，如果你接2根2GB的1600Hz这时好像有一根或者2根都要自动降频。有这情况吧？
udbusrgu
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0
2014年10月22日 02:00
以前看到一个服务器内存的资料上是这么写的，比如CPU支持1600Hz，但条数接很多，比如接个7个8个相同的1600Hz内存，这时内存会自动降频的。你听说过吗？IBM服务器好像是这样子的，不知道DELL是不是也这样情况？
IBM X3650 M2服务器因为采用了三通道的技术，所以它的内存插法与以前的X3650,X3650M有很大的区别。 IBM X3650 M2服务器有16条内存插槽，而IBM解释说根据英特尔的技术资料，如果两个处理器配满3通道18条内存，则无论采用什么规格的内存都只工作在DDR3 800的频率之下，而当配12条内存时其会工作在DDR3 1066的频率之下，当每个通道只配1条内存时存可以工作在1333MHz的频率之下，因此12条内存是速度与容量的平衡选择。
每通道接一条内存，运行在1333Mhz 每通道接二条内存，运行在1066Mhz 每通道接三条内存，运行在800Mhz
eahua_tang
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1.7K 消息
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2014年10月22日 03:00
除和CPU有关之外，还有就是内存的工作电压频率有关，当不同的工作电压频率会导致内存降频，官方有很详细的解释，见以下解释及链接：http://www.dell.com/learn/us/en/04/campaigns/poweredge-memory?c=us&l=en&s=bsd&cs=04&delphi:gr=true
Memory Speeds and Population
The 12th generation of PowerEdge™ servers offers a high level of performance in their memory subsystems with offerings that include up to 1866MT/s speed. Critical design and testing elements ensure that Dell server memory achieve the desired speeds.
The loading within a channel significantly affects memory speed. The following tables illustrate the maximum achievable speed based on memory loads:
*DPC means DIMMs per channel.
DDR3 (1.5V),
1866DDR3L (1.35V/1.5V),
1600DDR3L (1.35V/1.5V),
1600DDR3L (1.35V/1.5V),
1333DDR3L (1.5V),
1866DDR3L (1.35V/1.5V),
1600*For PowerEdge T620, the speed clocks down to 1066MT/s.
DIMM Type
DIMM Ranking
DIMM Rated Voltage, Speed
12th Generation Memory (EN, 2DPC Platforms)
1 DPC
2 DPC
1.35V
1.5V
1.35V
1.5V
RDIMM
SR/DR
DDR3L (1.5V),
1600
1600
1600
1600
1600
RDIMM
SR/DR
DDR3L (1.35V/1.5V),
1333
1333
1333
1333
1333
UDIMM
SR/DR
DDR3L (1.35V/1.5V),
1600
1600
1600
1600
1600
RDIMM
QR
DDR3L (1.35V/1.5V),
1333
1066
1333
1066
1066
LRDIMM
QR
DDR3L (1.35V/1.5V),
1333
The M420 is a 1DPC platform and has a unique table for speed:
2 DPC
DDR3 (1.5V),
1600DDR3L (1.35V/1.5V),
1333DDR3L (1.35V/1.5V),
1600DDR3L (1.35V/1.5V),
1333DDR3L (1.35V/1.5V),
1333DIMM Type
DIMM Ranking
DIMM Rated Voltage, Speed
12th Generation Memory (PEC EP, 2DPC Platforms)
*DPC means DIMMs per channel.
1.35V
1.5V
1.35V
1.5V
RDIMM
1R/2R
DDR3 (1.5V),
1866
1866
1600
RDIMM
1R/2R
DDR3L (1.35V/1.5V),
1600
1333
1600
1333
1600
UDIMM
1R/2R
DDR3L (1.35V/1.5V),
1600
1333
1600
1333
1600
RDIMM
4R
DDR3L (1.35V/1.5V),
1333
800
1066
800
800
The Dell 12th generation PowerEdge servers require memory to be populated in a specific order to help ensure correct utilization and optimization of the server. Here are some basic population rules for the Socket R systems:
1000VIP
39 消息
0
2014年11月8日 06:00
如果你的机器是双CPU,而且是四通道,肯定是8个8G性能好的,
四通道,是每个CPU四通道.
那么你接4个内存,只能每个CPU两通道
如果接8根就是每个CPU四通道
你内存是1333 1600 都不是问题,但是型号必须一样才能稳定,
现在还要看CPU支持多少的
举个例子:
~~~~~~~~~~~~~~~`
您的内存是1600,
cpu只支持1333
那么您全部的内存都是1333运行
~~~~~~~~~~~~~~~~~~~`
如果您的内存是1600
cpu支持1600
那么您的全部内存都是1600
~~~~~~~~~~~~~~~~~~~~`
您的内存是4个1600 4个1066
cpu支持1333
那么全部内存都是1066运行
~~~~~~~~~~~~~~~~~~~~
也就是按最低的来.
你没说服务器型号,我没办法判断你是什么个情况
但是一般的机器是必须要服务器内存才能用的.