178 IBM eX5 Implementation Guide
5.1 Introduction
The IBM BladeCenter HX5 supports up to two processors using Intel Xeon 6500
(Nehalem EX) 4-core, 6-core, or 8-core processors or four processors using the Intel Xeon
7500 Nehalem EX 4-core, 6-core, or 8-core processors. The HX5 supports up to 40 dual
inline memory modules (DIMMs) with the addition of the MAX5 memory expansion blade
when using Xeon 7500 Nehalem EX.
Figure 5-1 shows the following three configurations:
Single-wide HX5 with two processor sockets and 16 DIMM sockets.
Double-wide HX5 with four Xeon 7500 series processors and 32 DIMM sockets.
Double-wide HX5 with two Xeon 7500 or 6500 series processors and 40 DIMM sockets:
16 in the HX5 server and 24 in the attached MAX5 memory expansion blade.
Figure 5-1 IBM BladeCenter HX5 blade server configurations
Table 5-1 lists the features of the HX5.
Table 5-1 Features of the HX5 type 7872
MAX5: MAX5 can only connect to a single HX5 server.
HX5 2-socket HX5 4-socket HX5 2-socket
with MAX5
Features HX5 2-socket HX5 4-socket HX5 2-socket with MAX5
Form factor 30 mm (1-wide) 60 mm (2-wide) 60 mm (2-wide)
Maximum number of
processors
Two Fou r Two
Processor options Intel Xeon 6500 and 7500
Four-core, 6-core, or 8-core
Intel Xeon 7500
Four-core, 6-core, or 8-core
Intel Xeon 7500
Four-core, 6-core, or 8-core
Cache 12 MB, 18 MB, or 24 MB (shared between cores) (processor-dependent)
Memory speed 978 or 800 MHz (processor SMI link speed dependent) HX5: Up to 800 MHz
MAX5: Up to 1066 MHz
DIMM slots 16 32 40
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