Memory; Memory Support; General Guidelines For Optimizing Memory Performance - Supermicro SuperWorkstation SYS-531AD-I User Manual

3.6 Memory

Memory Support

The C9Z790-CG supports up to 128GB Unbuffered non-ECC UDIMM, DDR5-4400MT/s, in
four DIMM slots. Refer to the tables below for the recommended DIMM population order and
additional memory information.

General Guidelines for Optimizing Memory Performance

• When installing memory modules, the DIMM slots should be populated in the following
order: DIMMA2, DIMMB2, then DIMMA1, DIMMB1.
• When installing only two memory modules, please use DIMMA2 and DIMMB2.
• To optimize memory performance, please use DDR5 memory of the same type, size, and
speed on the motherboard.
• The motherboard will support odd-numbered modules (one or three modules installed).
However, to achieve the best memory performance, a balanced memory population is
recommended.
MAC CODE MAC CODE
22110
22110
2280
2280
2260
SP1
2260
B1
USB4/5
JSTBY1
LED2
M.2-P2
LED3
M.2-P1
JLED_POGO2
CPU LED
DIMM LED
VGA LED
LED4
BOOT LED
JL1
JLED1 JWD1
JF1
LED1
JSD1
Chapter 3: Maintenance and Component Installation
BAR CODE
HD AUDIO
JLED_IO
JLED_POGO1
SYS_FAN3
2280
2260
BIOS
LICENSE
LED4801
M.2-C1
DIMMA1
DIMMA2
DIMMB1
DIMMB2
PCH
USB12 (3.2, 20Gb)
I-SATA0 I-SATA2 I-SATA4
I-SATA1 I-SATA3 I-SATA5
32
SW1
USB0/1/2/3
LAN2 LAN1
USB8 (3.2, 10Gb) USB6 (3.2, 10Gb)
USB9 (3.2, 20Gb) USB7 (3.2, 20Gb)
LED18
LED17
POWER
BUTTON
JPW1
SYS_FAN1 CPU_FAN1
SYS_FAN2
DP/HDMI
CPU_FAN2
JPW2
DIMMA1
DIMMA2
DIMMB1
DIMMB2
RESET
BUTTON
CLEAR CMOS
12V_PUMP_PWR1