Lenovo ThinkStation P920 Manuel utilisateur

LENOVO THINKSTATION

P920 AND P720 MEMORY

CONFIGURATOR

Contents

OVERVIEW

SECTION 1–PLATFORM MEMORY ARCHITECTURE

SECTION 2–P920 MEMORY CONFIGURATIONS

SECTION 3–P720 MEMORY CONFIGURATIONS

SECTION 4–DOCUMENT REVISION HISTORY

Overview

The purpose of this document is to provide guidance for users on how to optimally

configure the system memory in the ThinkStation P920 and P720 platforms in

order to provide the best performance.

Section 1 –Platform Memory Architecture

The launch of the Intel® Purely platform has brought with it some exciting

changes to the system architecture for memory as compared to previous

workstation platforms. Newly added features such as support for 6 channels of

memory (per CPU) and a higher top supported memory bus speed combine to

provide users with significantly improved memory performance in their

workstations. Both the ThinkStation P920 and ThinkStation P720 have been

designed to take advantage of these new architecture enhancements to the

memory subsystem.

Section 2 –P920 Memory Configurations

The ThinkStation P920 is Lenovo’s largest and most powerful workstation built to

date. The dual CPU design has 16 total DIMM slots (8 per CPU) with a top

supported memory bus speed of 2666MHz

. With each CPU supporting 8 DIMM

slots, the P920 can take full advantage of all 6 channels of memory support offered

by the new Intel® Xeon® E5 Skylake CPUs. Figure 1 below shows a visual

reference of the DIMM slot layout for the P920 platform.

Figure 1 - P920 Motherboard DIMM Layout

Actual memory bus speed is determined by the CPU(s) selected.

CPU 2

CPU 1

CPU1 –DIMM 2

CPU1 –DIMM 6

CPU1 –DIMM 4

CPU1 –DIMM 8

CPU1 –DIMM 7

CPU1 –DIMM 3

CPU1 –DIMM 5

CPU1 –DIMM 1

CPU2 –DIMM 1

CPU2 –DIMM 5

CPU2 –DIMM 3

CPU2 –DIMM 7

CPU2 –DIMM 8

CPU2 –DIMM 4

CPU2 –DIMM 6

CPU2 –DIMM 2

The following guidelines are recommended by Lenovo for obtaining the best

memory bandwidth from your P920 when filling DIMM slots:

In single CPU configurations, only DIMM slots for CPU1 can be

utilized. For dual CPU configurations, all DIMM slots can be utilized.

In dual CPU configurations, it is optimal to balance memory across

CPUs. This applies to both DIMM quantity and capacity. While the

system will function with unbalanced DIMMs, overall memory

performance could be affected.

For best memory bandwidth performance, Lenovo recommends

optimizing the overall memory configuration to use 6 DIMMs per

CPU. DIMMS A1 and D1 (for each CPU) can be used where overall

memory capacity is prioritized over memory bandwidth.

Once DIMM quantity and DIMM capacity have been balanced across

CPUs (if necessary), users should follow the recommended fill order

for each CPU found in Figure 2. Largest capacity DIMMs should be

installed first if using mixed DIMM capacities.

Figure 2 shows the recommended DIMM slot fill order for each CPU installed in the

system.

Figure 2 –P920 DIMM Slot Fill Order Recommendations

# of DIMMs per CPU

DIMM slots used for each CPU

1 DIMM

DIMM 3

2 DIMMs

DIMM 3, DIMM 5

3 DIMMs

DIMM 1, DIMM 3, DIMM 5

4 DIMMs

DIMM 3, DIMM 4, DIMM 5, DIMM 6

5 DIMMs2

Not Recommended

6 DIMMs

DIMM 1, DIMM 2, DIMM 3, DIMM 4, DIMM 5, DIMM 6

7 DIMMs2

Not Recommended

8 DIMMs3

DIMM 1, DIMM 2, DIMM 3, DIMM 4, DIMM 5,

DIMM 6, DIMM 7, DIMM 8

Note: Memory configurations using 5 DIMMs or 7 DIMMs per CPU are not recommended as they

are unbalanced configurations that could result in memory performance degradation.

- 5 DIMM per CPU and 7 DIMM per CPU configurations will function, but should be avoided as

they present an unbalanced load to the CPU that could result in memory bandwidth degradation.

- 8 DIMM per CPU configurations represent an unbalanced load to the CPU, but these

configurations can be used where overall memory capacity takes priority over bandwidth. For

maximum memory bandwidth, Lenovo recommend optimizing on 6 DIMMs per CPU if possible.

Section 3 –P720 Memory Configurations

TCPOUhe ThinkStation P720 is the latest compact dual processor workstation.

Like the P920, it also features a dual CPU design. But in an effort to maintain the

smaller chassis size the P720 utilizes a 12 DIMM slot design (6 DIMMs per CPU).

This allows P720 to take full advantage of all 6 memory channels offered by the

new Intel® Xeon® E5 Skylake CPUs in a single DIMM per channel configuration

and also support the highest memory bus speed of 2666MHz

. Figure 3 shows a

visual representation of the DIMM slot layout for the P720 platform.

Figure 3 - P720 Motherboard DIMM Slot Layout

Actual memory bus speed is determined by the CPU(s) selected.

CPU 1

CPU 2

CPU2 –DIMM 3

CPU2 –DIMM 5

CPU2 –DIMM 1

CPU2 –DIMM 2

CPU2 –DIMM 6

CPU2 –DIMM 4

CPU1 –DIMM 1

CPU1 –DIMM 5

CPU1 –DIMM 3

CPU1 –DIMM 4

CPU1 –DIMM 6

CPU1 –DIMM 2

The following guidelines are recommended by Lenovo for obtaining the best

memory bandwidth from your P720 when filling DIMM slots:

In single CPU configurations, only DIMM slots for CPU1 can be

utilized. For dual CPU configurations, all DIMM slots can be utilized.

In dual CPU configurations, it is optimal to balance memory across

CPUs. This applies to both DIMM quantity and capacity. While the

system will function with unbalanced DIMMs, overall memory

performance could be affected.

For best memory bandwidth performance, Lenovo recommends

optimizing the overall memory configuration to use 6 DIMMs per

CPU.

Once DIMM quantity and DIMM capacity have been balanced across

CPUs (if necessary), users should follow the recommended fill order

for each CPU found in Figure 4. Largest capacity DIMMs should be

installed first if using mixed DIMM capacities.

Figure 4 shows the recommended DIMM slot fill order for each CPU installed in the

system.

Figure 4 - P720 DIMM Slot Fill Order Recommendations

# of DIMMs per CPU

DIMM slots used for each CPU

1 DIMM

DIMM 3

2 DIMMs

DIMM 3, DIMM 5

3 DIMMs

DIMM 1, DIMM 3, DIMM 5

4 DIMMs

DIMM 3, DIMM 4, DIMM 5, DIMM 6

5 DIMMs5

Not Recommended

6 DIMMs

DIMM 1, DIMM 2, DIMM 3, DIMM 4,

DIMM 5, DIMM 6

Note: Memory configurations using 5 DIMMs per CPU are not recommended as they are

unbalanced configurations that could result in memory performance degradation.

- 5 DIMM per CPU configurations will function, but should be avoided as they present an

unbalanced load to the CPU that could result in memory bandwidth degradation.

Section 4 –Document Revision History

Version

Date

Author

Changes/Updates

1.0

11/8/2017

Cory Chapman

Initial launch release

Autres manuels pour ThinkStation P920

Ce manuel convient aux modèles suivants

Autres manuels Lenovo Ordinateur de bureau

Lenovo

Lenovo ThinkCentre E50 Manuel utilisateur

Lenovo

Lenovo ThinkCentre M91p Manuel utilisateur

Lenovo

Lenovo ThinkCentre Edge 92 Mode d’emploi

Lenovo

Lenovo S20-00 Manuel du propriétaire

Lenovo

Lenovo ThinkCentre M80s Gen 3 Manuel utilisateur

Lenovo

Lenovo 7360D6U - THINKCENTRE M58 7360 Manuel du propriétaire

Lenovo

Lenovo ThinkCentre M72z Guide de configuration

Lenovo

Lenovo ThinkCentre A62 Manuel utilisateur

Lenovo

Lenovo Aptiva Manuel utilisateur

Lenovo

Lenovo ThinkCentre A52 Manuel

Lenovo

Lenovo ThinkCentre E50 Manuel

Lenovo

Lenovo ThinkCentre M72e Manuel utilisateur

Lenovo

Lenovo ThinkCentre A61e Manuel utilisateur

Lenovo

Lenovo ThinkCentre Edge 92z Manuel de service

Lenovo

Lenovo ThinkCentre M81 Document technique

Lenovo

Lenovo ThinkCentre M91 Manuel utilisateur

Lenovo

Lenovo ThinkStation S30 Mode d’emploi

Lenovo

Lenovo V130-20IGM AIO Manuel du propriétaire

Lenovo

Lenovo ThinkStation S20 Manuel utilisateur

Lenovo

Lenovo 1761E4U Manuel utilisateur

Lenovo

Lenovo ThinkStation E31 Manuel

Lenovo

Lenovo ThinkCentre M55p Manuel

Lenovo

Lenovo THINKSTATION D10 Manuel utilisateur

Lenovo

Lenovo ThinkStation E31 Mode d’emploi

Manuels Ordinateur de bureau populaires d'autres marques

HP m9060n - Pavilion - Elite Fiche technique

Asus

Asus E210 Series Manuel utilisateur

Dell

Dell Inspiron 600m Manuel utilisateur

Dell

Dell Inspiron 3662 Manuel utilisateur

TotalFlow

TotalFlow uFLO Manuel utilisateur

HP Presario SV7000 - Desktop PC Manuel utilisateur

HP ProDesk 400 G5 Manuel

Logitech

Logitech MK320 Manuel utilisateur

Dell

Dell XPS 730 H2C Manuel utilisateur

Sony

Sony Vaio Series Manuel utilisateur

Sony

Sony VGC-LT32E - Vaio All-in-one Desktop Computer Manuel utilisateur

Alto

Alto MD 250 Manuel utilisateur

Arbor Technology

Arbor Technology FPC-7800 Series Manuel utilisateur

Sony

Sony VAIO VGX-TP1 Series Manuel utilisateur

Asus

Asus Eee Box B204 Manuel utilisateur

Dell

Dell Optiplex 9010 All In One Manuel utilisateur

HP Z1 Manuel utilisateur

Everex

Everex eXplora Manuel utilisateur