Superior performance/U in a 4-socket, 2U server
Please see the Legal Information section for important notices and information.
4
•
79W
maximum (65W average)
8-core
AMD Opteron
6124HE
operating at 1.8GHz, with 64-bit
extensions,
extremely
low power draw per core
(
9.9W
),
6.4
GTps,
1333MHz
memory access,
quad integrated memory controllers, and
12MB
of
L3
processor cache (
1.5MB
per core)—
available via CTO only
System power-efficiency
is crucial for businesses looking to increase their computing strength
to spread the workload without outgrowing their current data center. With the power-efficient AMD
Opteron dual-core processors, increased performance-per-watt improves compute capacity
within the same infrastructure space. By replacing old Opteron processor-based servers with new
x3755 M3 servers using the new power-efficient processors, you can reduce the number of
servers needed by up to
54%
,
with equivalent performance and as much as a
427%
power
reduction. Or, you can nearly double
the performance in the same space while still saving on
power, when implementing a one-to-one server replacement.
HyperTransport
technology is a high-speed, low-latency, point-to-point link, designed to
increase the communication speed between circuits. It permits the fastest possible access to
CPU and memory. The x3755 M3 incorporates the latest version of HyperTransport technology,
which provides coherent bandwidth (among processors) of up to
3.2GBps
and noncoherent
bandwidth (between processors and I/O) of up to
2.6GBps
. Go to
http://amd.com
for more
information on HyperTransport technology.
AMD PowerNow!
technology with optimized power management dynamically reduces processor
power draw based on workload. This can result in a power savings of up to
55%
per processor at
CPU idle.
DDR3 ECC Memory with Chipkill Protection
x3755 M3 servers use registered double data rate III (DDR3) DIMMs and provide Active Memory
features, including advanced
Chipkill
memory protection, for
up to 16X
better error correction
than standard ECC memory, and optional
online memory sparing
. In addition to offering
triple
the memory bandwidth
of registered DDR2 or fully-buffered memory, DDR3 memory also uses
less energy. DDR2 memory already offered up to
37%
lower energy use than fully buffered
memory. Now, a generation later, DDR3 memory is even more efficient, using
10-15% less
energy
than DDR2 memory.
The x3755 M3 supports up to
32
DIMMs, with
8
DIMM slots assigned to each processor (four
memory channels with two DIMM slots and one memory controller per channel). Therefore a 2-
processor system is limited to
16
DIMMs. Four processors are required to use all 32 DIMM slots.
Memory types supported include single-, dual-, and quad-rank,
1.5V
and energy-efficient
1.35V
DIMMs. 1.35V DIMMs consume up to
18%
less energy than 1.5V DIMMs.
Notes:
Memory is available in
2GB
,
4GB
, or
8GB
DIMMs. It is highly recommended that memory
be installed in pairs, for load-balancing purposes. The DIMMs within a pair must be identical
(capacity, rank, and speed). Chipkill protection is offered with either x4 or x8 DIMMs.
The x3755 M3 supports up to two DIMMs per channel (2DPC) running at 133MHz, depending on
the configuration. Memory configurations include:
•
2DPC
— Single- and dual-rank 1.5V and 1.35V at
1333MHz
•
2DPC
— 2 quad-rank, or 1 quad-rank and 1 single- or dual-rank 1.5V at
1066MHz
; 1.35V at
800MHz
•
1DPC — Single- and dual-rank 1.5V and 1.35V at
1333MHz
•
1DPC — Quad-rank 1.5V at 1333MHz; 1.35V at
1066MHz
With
online sparing
enabled one rank of each pair is configured as a spare. These spare ranks
are used in the event of a DIMM failure. Using online sparing, only
1/2
of the memory is available
for use with
two single-rank
DIMMs in a memory channel; with
one single-rank
DIMM and
one
dual-rank
DIMM, only
2/3
of the memory is available.
3/4
of the memory is available with
two
dual-rank
DIMMs. (Online sparing is not available with quad-rank DIMMs.)
High-Performance Adapter Slots
The x3755 M3 provides
four high-speed
PCI Express
(PCIe)
Gen 2
adapter slots to fit a variety
of needs. PCI Express Gen 2 is the latest high-performance, low-latency, next-generation serial
I/O bus.
One x16
physical
/x16
electrical (“by 16”)
16GBps
full-length/full-height
slot (Slot
1
)
supports
x1/x4/x8/x16
Gen 1 or Gen 2 cards at full rated throughput.
Two x8
physical
/x8
electrical
8GBps
half-length/full-height
slots (Slots
2
and
3
) support
x1/x4/x8
Gen 1 or Gen 2
cards at full rated throughput.
One x8
physical
/x4
electrical
4GBps
half-length/full-height
slot
(Slot
4
) support
x1
,
x4
, and
x8
Gen 1 or Gen 2 cards, but at a maximum of x4 Gen 2 throughput.
Slot
4
is reserved for the RAID controller.
Drive Bays
The x3755 M3 contains
nine
drive bays in all (one 5.25-inch and eight 3.5-inch). All models
