HP ProLiant ML10 HP ProLiant ML10 Server User Guide - Page 36

Memory options, DIMM identification

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Memory options The server memory subsystem supports only UDIMMs. The server supports dual-rank, PC3-12800E (DDR3) DIMMs operating at a speed of 1600 MT/s. For more information, see "General DIMM slot population guidelines (on page 38)." DIMM identification To determine DIMM characteristics, use the label attached to the DIMM and the following illustration and table. Item Description 1 Size 2 Rank 3 Data width 4 Voltage rating 5 Memory speed 6 DIMM type Definition - 1R = Single-rank 2R = Dual-rank 3R = Three-rank 4R = Quad-rank x4 = 4-bit x8 = 8-bit L = Low voltage (1.35V) U = Ultra low voltage (1.25V) Blank or omitted = Standard 12800 = 1600-MT/s 10600 = 1333-MT/s 8500 = 1066-MT/s R = RDIMM (registered) E = UDIMM (unbuffered with ECC) L = LRDIMM (load reduced) For the latest supported memory information, see the QuickSpecs on the HP website (http://h18000.www1.hp.com/products/quickspecs/ProductBulletin.html). At the website, choose the geographic region, and then locate the product by name or product category. Hardware options installation 36

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Hardware options installation 36
Memory options
The server memory subsystem supports only UDIMMs.
The server supports dual-rank, PC3-12800E (DDR3) DIMMs operating at a speed of 1600 MT/s.
For more information, see "General DIMM slot population guidelines (on page
38
)."
DIMM identification
To determine DIMM characteristics, use the label attached to the DIMM and the following illustration and
table.
Item
Description
Definition
1
Size
—
2
Rank
1R = Single-rank
2R = Dual-rank
3R = Three-rank
4R = Quad-rank
3
Data width
x4 = 4-bit
x8 = 8-bit
4
Voltage rating
L = Low voltage (1.35V)
U = Ultra low voltage (1.25V)
Blank or omitted = Standard
5
Memory speed
12800 = 1600-MT/s
10600 = 1333-MT/s
8500 = 1066-MT/s
6
DIMM type
R = RDIMM (registered)
E = UDIMM (unbuffered with ECC)
L = LRDIMM (load reduced)
For the latest supported memory information, see the QuickSpecs on the HP website
(
). At the website, choose the
geographic region, and then locate the product by name or product category.