Lenovo ThinkStation P340 Tower, ThinkStation P340 SFF Memory Configurator [en, ar, bg, cs, da, de, el, es, fi, fr, he, hr, hu, id, it, ja, ko, nb, nl, pl, pt, pt, ro, ru, sh, sk, sl, sv, th, tr, uk, zc, zh]

Lenovo ThinkStation

P340 Tower and P340 SFF Memory Configurator

Contents

OVERVIEW
SECTION 1 – PLATFORM MEMORY ARCHITECTURE
SECTION 2 – P340 TOWER/SFF MEMORY CONFIGURATION
SECTION 3 – DOCUMENT REVISION HISTORY

Overview

The purpose of this document is to provide guidelines for users on how to
optimally configure the system memory in the ThinkStation P340 Tower and
P340 SFF platforms in order to provide the best performance.

Section 1 – Platform Memory Architecture

The launch of the Intel Comet Lake platform brings with it some important
updates to the memory system architecture. The main new feature is a higher
top supported memory bus speed, which provides increased memory
performance and bandwidth. Both ThinkStation P340 Tower and P340 SFF
can take advantage of this improvement.

The ThinkStation P340 is Lenovo’s newest mainstream single CPU

workstation. The platform has a total of 4 DIMM slots with a top supported
memory bus speed of 2933MHz. The P340 takes full advantage of the 2
memory channels offered by the Intel Comet Lake Xeon and Comet Lake Core
CPUs and supports a 2-DIMM-per-channel design. This allows the P340 to
offer incredible memory capacity at a top supported memory bus speed of
2933MHz. Figure 1 below shows a visual reference of the DIMM slot layout for
the P340 platform.

Figure 1 - P340 Tower/SFF Motherboard DIMM Layout

Section 2 – P340 Memory Configurations

DIMM4

DIMM3

DIMM2

DIMM1

The following guidelines are recommended by Lenovo for obtaining the best
memory bandwidth from your P340 when filling DIMM slots:

• For optimal memory bandwidth, Lenovo recommends filling DIMM slots in
multiples of 2 DIMMs or 4 DIMMs to fully take advantage of all 2 memory
channels. Utilizing all 4 DIMM slots should yield maximum memory bandwidth
performance.

• DIMM slots should be filled in the order listed in Figure 2.

• If using mixed capacity memory, fill DIMM slots in numerical order starting

with the largest DIMMs first.

Figure 2 - P340 Tower/SFF Slot Fill Order Recommendations

# of DIMMs

DIMM slots used

1 DIMM

DIMM slot 2

2 DIMMs

DIMM slot 2, DIMM slot 4

3 DIMMs

DIMM slot 2, DIMM slot 4, DIMM slot 1

4 DIMMs

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

Version

Date

Author

Updates

1.0

06/09/2020

Sayali Pawar

Initial launch release

Section 3 – Document Revision History