A highly available and expandable, rack-dense, 1U dual-socket SMP server, for application
serving in Web environments
Please see the Legal Information section for important notices and information.
4
they were constantly running at full speed.
•
The
three-year (parts and labor) limited onsite warranty
3
helps afford you peace of mind
and greater investment protection than a one-year warranty does.
Key Features
High-Performance Xeon Processors
The x3550 supports up to two high-performance Intel Xeon processors, allowing you to upgrade
to a second processor as your business needs require. The x3550 offers a choice of processor
clock rates, FSB speeds and energy efficiency, including:
•
120W quad-core
Xeon processor models
X5450 or X5460
at 3.0, 3.16Ghz respectively
with
64-bit extensions, a
1333MHz
FSB, and
12MB
of L2 processor cache (2 x 6MB)
•
50W quad-core
Xeon processor model
L5420
at 2.5GHz, with 64-bit extensions,
ultralow
power draw
(
12.5W
per core
), a
1333MHz
FSB, and
12MB
of L2 processor cache (2 x 6MB)
•
80W quad-core
Xeon processor models
E5405
,
E5420
,
E5430
,
E5440
at 2.0, 2.5, 2.66,
2.8GHz (respectively), with 64-bit extensions, a
1333MHz
FSB, and
12MB
of L2 processor
cache (2 x 6MB)
•
50W quad-core
Xeon processor models
L5310
or
L5320
at 1.6 or 1.86GHz (respectively),
with 64-bit extensions,
ultralow power draw
(
12.5W
per core
), a
1066MHz
FSB, and
8MB
of
L2 processor cache (2 x 4MB)
•
65W
dual-core Xeon processor model
E5205
at 1.86GHz, with 64-bit extensions,
low power
draw
, a
1066MHz
FSB, and
6MB
of
shared
L2 processor cache
•
80W
dual-core Xeon processor model
5160
at 3.0GHz, with 64-bit extensions,
reduced power
draw
, a
1333MHz
FSB, and
4MB
of
shared
L2 processor cache
•
65W
dual-core Xeon processor model
5140
at 2.33GHz, with 64-bit extensions,
low power
draw
, a
1333MHz
FSB, and
4MB
of
shared
L2 processor cache
•
65W
dual-core Xeon processor model
5110
at 1.6GHz, with 64-bit extensions,
low power
draw
, a
1066MHz
FSB, and
4MB
of
shared
L2 processor cache
Dual-core Xeon
processors contain
two complete processor cores
;
quad-core
processors,
similarly, contain
four
cores. Some processors contain one
unified
cache
shared
by all cores,
while other processors have multiple
independent
caches (one per pair of cores). The shared
cache is dynamically allocated between the cores as needed. The multiple cores appear to
software as multiple physical processors. The dual-core processors offer considerably higher
performance than a same-speed Xeon processor with a single core. Likewise, quad-core
processors offer considerably higher performance than a same-speed Xeon processor with dual
cores.
Intel
Extended Memory 64 Technology (EM64T)
64-bit extensions allow the Xeon processor to
use large memory addressing when running with a 64-bit operating system. This in turn lets
individual software processes directly access more than 4GB of RAM, which was the limit of 32-
bit addressing. This can result in much higher performance for certain kinds of programs, such as
database management and CAD. Additional registers and instructions (SSE3) can further boost
performance for applications written to use them. Contact your software provider to determine
their software support for EM64T.
The
1066MHz
FSB (which connects memory to the processor) boasts a peak rate of
8.53GBps
,
or up to
one-third
higher throughput at the same processor clock speed than an
800MHz
FSB
(
6.4GBps
) used in older systems. The
1333MHz
FSB offers a peak rate of
10.67GBps
, or up to
two
-
thirds
higher throughput at the same processor clock speed than an
800MHz
FSB. This may
result in much higher data transfer rates.
Intelligent Power Capability
powers individual processor elements on and off as needed, to
reduce power draw.
Execute Disable Bit
functionality can help prevent certain classes of malicious buffer overflow
attacks when combined with a supporting operating system.
3
For terms and conditions or copies of the IBM Statement of Limited Warranty, call 800-772-2227 in the U.S. In Canada call 800-
426-2255. Telephone support may be subject to additional charges. For warranties including onsite labor, a technician is sent after
IBM attempts to resolve the problem remotely. International warranty service is available in any country in which this product is
sold.
