Installing a memory module Адаптер thinkserver Lenovo Tower Server - TD100 (ThinkServer) - Type 4205

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The

 

server

 

supports

 

memory

 

mirroring

 

(mirroring

 

mode)

 

and

 

online-spare

 

memory.

 

   

Memory

 

mirroring

 

replicates

 

and

 

stores

 

data

 

on

 

DIMMs

 

within

 

two

 

branches

 

simultaneously.

 

You

 

must

 

enable

 

memory

 

mirroring

 

through

 

the

 

Configuration/Setup

 

Utility

 

program.

 

To

 

enable

 

memory

 

mirroring

 

in

 

the

 

Configuration/Setup

 

Utility

 

program,

 

select

 

Devices

 

and

 

I/O

 

Ports

 

 

Advanced

 

Chipset

 

Control

 

 

Memory

 

Branch

 

Mode.

 

Use

 

the

 

arrow

 

keys

 

to

 

change

 

the

 

Memory

 

Branch

 

Mode

 

setting

 

to

 

Mirror;

 

then,

 

save

 

your

 

changes.

 

For

 

more

 

information

 

on

 

the

 

Configuration/Setup

 

Utility

 

program,

 

see

 

“Using

 

the

 

Configuration/Setup

 

Utility

 

program”

 

on

 

page

 

61.

 

When

 

you

 

use

 

memory

 

mirroring,

 

consider

 

the

 

following

 

information:

 

-

   

For

 

TD100

 

models,

 

the

 

maximum

 

available

 

memory

 

is

 

reduced

 

to

 

16

 

GB,

 

instead

 

of

 

the

 

32

 

GB

 

available

 

in

 

non-mirroring

 

mode.

 

-

   

For

 

TD100x

 

models,

 

the

 

maximum

 

available

 

memory

 

is

 

reduced

 

to

 

24

 

GB,

 

instead

 

of

 

the

 

48

 

GB

 

available

 

in

 

non-mirroring

 

mode.

 

-

   

The

 

minimum

 

memory

 

configuration

 

is

 

four

 

identical

 

DIMMs.

 

You

 

must

 

install

 

identical

 

pairs

 

of

 

fully

 

buffered,

 

dual-inline

 

memory

 

modules

 

(DIMMs)

 

in

 

all

 

four

 

DIMM

 

connectors

 

(same

 

size,

 

type,

 

speed,

 

and

 

technology).

 

These

 

DIMMs

 

must

 

span

 

across

 

both

 

branches

 

and

 

all

 

four

 

channels.

 

For

 

example,

 

when

 

you

 

install

 

the

 

first

 

four

 

DIMMs,

 

you

 

must

 

install

 

two

 

DIMMs

 

in

 

branch

 

0

 

(one

 

in

 

channel

 

0

 

and

 

one

 

in

 

channel

 

1)

 

and

 

two

 

DIMMs

 

in

 

branch

 

1

 

(one

 

in

 

channel

 

2

 

and

 

one

 

in

 

channel

 

3).

 

See

 

Table

 

4

 

for

 

the

 

DIMM

 

installation

 

sequence.

 

-

   

When

 

you

 

upgrade

 

the

 

server

 

to

 

eight

 

or

 

12

 

DIMMs,

 

the

 

DIMMs

 

that

 

are

 

next

 

to

 

each

 

other

 

(for

 

example,

 

DIMM

 

connector

 

1

 

and

 

DIMM

 

connector

 

4)

 

within

 

the

 

channels

 

of

 

a

 

branch

 

must

 

be

 

identical

 

in

 

size,

 

type,

 

speed,

 

and

 

technology.

 

However,

 

the

 

DIMMs

 

in

 

the

 

connectors

 

above

 

or

 

below

 

each

 

other

 

within

 

the

 

channels

 

of

 

a

 

branch

 

do

 

not

 

have

 

to

 

be

 

identical

 

to

 

each

 

other

 

(for

 

example,

 

the

 

DIMMs

 

in

 

DIMM

 

connector

 

1

 

and

 

DIMM

 

connector

 

2).

 

-

   

Both

 

branches

 

operate

 

in

 

dual-channel

 

mode.

The

 

following

 

table

 

shows

 

the

 

DIMM

 

configuration

 

upgrade

 

sequence

 

for

 

operating

 

in

 

mirroring

 

mode.

 

 

Table

 

4.

 

DIMM

 

upgrade

 

configuration

 

sequence

 

in

 

mirroring

 

mode

 

Number

 

of

 

DIMMs

 

DIMM

 

connectors

 

4

 

1,

 

4,

 

7,

 

10

 

8

 

1,

 

4,

 

7,

 

10,

 

2,

 

5,

 

8,

 

11

 

12

 

(TD100x

 

Machine

 

Types

 

4203,

 

4204,

 

4205,

 

4206)

 

1,

 

4,

 

7,

 

10,

 

2,

 

5,

 

8,

 

11,

 

3,

 

6,

 

9,

 

12

 

Note:

 

For

 

TD100

 

models

 

(Machine

 

Types

 

6398,

 

6399,

 

6419,

 

6429),

 

DIMM

 

connectors

 

3,

 

6,

 

9,

 

and

 

12

 

are

 

not

 

functional.

 

Do

 

not

 

install

 

DIMMs

 

in

 

these

 

connectors.

  

   

Online-spare

 

memory

 

disables

 

a

 

failed

 

rank

 

pair

 

of

 

DIMMs

 

from

 

the

 

system

 

configuration

 

and

 

activates

 

an

 

online-spare

 

rank

 

pair

 

of

 

DIMMs

 

to

 

replace

 

the

 

failed

 

rank

 

pair

 

of

 

DIMMs.

 

For

 

an

 

online-spare

 

pair

 

of

 

DIMMs

 

to

 

be

 

activated,

 

you

 

must

 

enable

 

this

 

feature

 

and

 

have

 

installed

 

an

 

additional

 

rank

 

pair

 

of

 

DIMMs

 

of

 

the

 

same

 

speed,

 

type,

 

size

 

(or

 

larger),

 

and

 

technology

 

as

 

the

 

failed

 

pair

 

of

 

DIMMs.

 

You

 

must

 

enable

 

the

 

feature

 

through

 

the

 

Configuration/Setup

 

Utility

 

program.

 

To

 

enable

 

online-spare

 

memory

 

in

 

the

 

Configuration/Setup

 

Utility

 

program,

 

select

 

Devices

 

and

 

I/O

 

Ports

 

 

Advanced

 

Chipset

 

Control

 

 

Memory

 

Branch

 

Mode.

 

Use

 

the

 

arrow

 

keys

 

to

 

change

 

the

 

setting

 

for

 

Branch

 

0

 

Rank

 

Sparing

 

or

 

Branch

 

1

 

Rank

 

Sparing

 

to

 

Enabled;

 

then,

 

save

 

your

 

 

Chapter

 

2.

 

Installing

 

optional

 

devices

 

29