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2.3 Installation of Memor
2.3 Installation of Memor y Modules (DIMM)
2.3 Installation of Memor
2.3 Installation of Memor
2.3 Installation of Memor
This motherboard provides four 240-pin DDR2 (Double Data Rate 2) DIMM slots,
and supports Dual Channel Memory Technology. For dual channel configuration,
you always need to install identical (the same brand, speed, size and chip-type)
DDR2 DIMM pair in the slots of the same color. In other words, you have to install
identical DDR2 DIMM pair in Dual Channel A (DDRII_1 and DDRII_2; Yellow slots;
see p.2 No.6) or identical DDR2 DIMM pair in Dual Channel B (DDRII_3 and
DDRII_4; Orange slots; see p.2 No.7), so that Dual Channel Memory Technology
can be activated. This motherboard also allows you to install four DDR2 DIMMs for
dual channel configuration, and please install identical DDR2 DIMMs in all four
slots. You may refer to the Dual Channel Memory Configuration Table below.
Dual Channel Memory Configurations
DDRII_1
(Yellow Slot) (Yellow Slot)
(1)
Populated
(2)
-
(3)*
Populated
*
For the configuration (3), please install identical DDR2 DIMMs in all four slots.
1.
If you want to install two memory modules, for optimal compatibil-
ity and reliability, it is recommended to install them in the slots of
the same color. In other words, install them either in the set of
yellow slots (DDRII_1 and DDRII_2), or in the set of orange slots
(DDRII_3 and DDRII_4).
2.
If only one memory module or three memory modules are in-
stalled in the DDR2 DIMM slots on this motherboard, it is unable to
activate the Dual Channel Memory Technology.
3.
If a pair of memory modules is NOT installed in the same Dual
Channel, for example, installing a pair of memory modules in
DDRII_1 and DDRII_3, it is unable to activate the Dual Channel
Memory Technology .
4.
It is not allowed to install a DDR memory module into DDR2 slot;
otherwise, this motherboard and DIMM may be damaged.
5.
If you adopt DDR2 1066 memory modules on this motherboard, it
is recommended to install them on DDRII_3 and DDRII_4 slots.
1 2
1 2
1 2
1 2
1 2
y Modules (DIMM)
y Modules (DIMM)
y Modules (DIMM)
y Modules (DIMM)
DDRII_2
DDRII_3
(Orange Slot) (Orange Slot)
Populated
-
-
Populated
Populated
Populated
ASRock
A770DE
Motherboard
DDRII_4
-
Populated
Populated
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