Appendix B. System Memory Speed - Lenovo ThinkStation D20 User Manual

Appendix B. System memory speed

The Intel Xeon microprocessor families compatible with this ThinkStation computer feature an integrated
memory controller, which provides the microprocessor with direct access to the system memory. Because
of this design, the system memory speed will be determined by a number of factors, including the
microprocessor model and the type, speed, size (capacity), and number of DIMMs installed. Refer to the
following table for the information on the supported system memory speed for your own computer model.
Table 1. DIMM type and speed: PC3-10600U
DIMM size (capacity)
1 GB, 2 GB, 4 GB
Table 2. DIMM type and speed: PC3-8500U
DIMM size (capacity)
1 GB, 2 GB, 4 GB
© Copyright Lenovo 2009, 2012
Number of DIMMs
installed per
microprocessor bank
1 to 3
4 to 6
Number of DIMMs
installed per
microprocessor bank
1 to 6
Microprocessor model
Intel Xeon E5502, E5503,
E5504, E5506, E5507
Intel Xeon E5603, E5606,
E5607, E5520, E5530,
E5540, E5620, E5630,
E5640, X5647
Intel Xeon E5645, E5649,
X5550, X5560, X5570,
X5650, X5660, X5667,
X5670, X5672, X5675,
X5677, X5680, X5687,
X5690, W5580, W5590
Intel Xeon E5502, E5503,
E5504, E5506, E5507
Intel Xeon E5603, E5606,
E5607, E5520, E5530,
E5540, E5620, E5630,
E5640, X5550, X5560,
X5570, X5647, W5580,
W5590
Intel Xeon E5645, E5649,
X5650, X5660, X5667,
X5670, X5672, X5675,
X5677, X5680, X5687,
X5690
Microprocessor model
Intel Xeon E5502, E5503,
E5504, E5506, E5507
Intel Xeon E5603, E5606,
E5607, E5520, E5530,
E5540, E5620, E5630,
E5640, E5645, X5647,
E5649, X5550, X5560,
X5570, X5650, X5660,
X5667, X5670, X5672,
X5675, X5677, X5680,
Memory frequency
800 MHz
1066 MHz
1333 MHz
800 MHz
1066 MHz
1333 MHz
Memory frequency
800 MHz
1066 MHz
51