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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)
Number of DIMMs
installed per CPU bank
Microprocessor model Memory frequency
Intel Xeon E5502, E5503,
E5504, E5506, E5507
800 MHz
Intel Xeon E5520, E5530,
E5540, E5620, E5603,
E5606, E5607, E5630,
E5640, E5647, W3503,
W3505, W3520, W3530,
W3540, W3550, W3565,
W3670
1066 MHz
1 to 3
Intel Xeon E5645, E5649,
X5550, X5560, X5570,
X5650, X5660, X5667,
X5670, X5672, X5675,
X5677, X5680, X5687,
X5690, W3570, W3580,
W3680, W3690, W5580,
W5590
1333 MHz
Intel Xeon E5502, E5503,
E5504, E5506, E5507
800 MHz
Intel Xeon E5520, E5530,
E5540, E5620, E5603,
E5606, E5607, E5630,
E5640, E5647, X5550,
X5560, X5570, W3503,
W3505, W3520, W3530,
W3540, W3550, W3565,
W3570, W3580, W3670,
W5580, W5590
1066 MHz
1 GB, 2 GB, 4 GB
4 to 6
Intel Xeon E5645, E5649,
X5650, X5660, X5667,
X5670, X5672, X5675,
X5677, X5680, X5687,
X5690, W3680, W3690
1333 MHz
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