Asus RS160-E4/PA4 User Manual download pdf (Page 28)

Chapter 2: Hardware setup2-12

Memory Sparing :

At conguration time, a DIMM rank is set aside to replace a defective DIMM rank.

When the error rate for a failing DIMM rank reaches a pre-determined threshold,

the memory sparing function will issue an interrupt and initiate a spare copy. At the

completion of the copy, the failing DIMM rank is disabled and the “spared” DIMM

rank will be used in its place. Refer to

5.4.2ChipsetConguration

and congure

the options of

Branch 0 Rank Sparing

to enable the memory sparing functions.

And the default BIOS setting is disabled.

• Each branch contains its own sparing engine and can be enabled or

disabled separately.

• This motherboard does not support rank sparing across branches.

• This motherboard does not support rank sparing when in mirror mode.

• The DIMM rank with the largest size will be assigned as spare rank. Data

can only be copied from a smaller sized rank to a larger sized one.

• A DIMM can contain only one or two ranks. To support sparing function, a

DIMM channel should contain at least two ranks.

• When sparing function is enabled, the usable memory size will reduce then

size of the spare ranks.

Branch0

Channel 0 Channel 1

DIMM_00

(2048MB/2 Ranks)

DIMM_10

(2048MB/2 Ranks)

Rank 0

(1024 MB)

Rank 1

(1024 MB)

Rank 0

(1024 MB)

Rank 1

(1024 MB)

Sparing

V V

Memory space

1024 MB 1024 MB

Total Memory

2048 MB

The following tables show memory congurrations with Memory Sparing function in

Branch 0.

One DIMM per channel (Dual ranks)

1 ... 27 28 29 ... 186

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Asus RS160-E4/PA4 User Manual Page 28

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