User Guide

Table 4. Chipset (continued)
Description Values
Flash EPROM
16 MB + 32 MB
PCIe bus
Up to Gen5
Operating system
Your Precision 3660 Tower supports the following operating systems:
● Windows 11 Home, 64-bit
● Windows 11 Pro, 64-bit
● Windows 11 Pro National Education, 64-bit
● Windows 11 Downgrade (Windows 10 image)
● Windows 10 IoT 2021 LTSC (OEM only)
● Windows 10 CMIT Government Edition, 64-bit (China only)
● Kylin Linux version 10 SP1 (China only)
● Ubuntu Linux 22.04 LTS, 64-bit
● RHEL 8.6
Memory
The following table lists the memory specifications of your Precision 3660 Tower.
Table 5. Memory specifications
Description Values
Memory slots
Four-DIMM slots
NOTE: Up to 128 GB or up to 4400 MHz ECC and Non-
ECC DDR5
Memory type
DDR5
Memory speed
Maximum speed: 4400 MHz
NOTE: Maximum memory speed varies by the following
configuration on each channel. If the 2 DIMM
configuration is not symmetrical, the maximum speed may
drop.
● 4400 MHz : 1 DIMM-1R/2R
● 4000 MHz : 2 DIMM-1R
● 3600 MHz : 2 DIMM-2R
Maximum memory configuration
128 GB
Minimum memory configuration
8 GB
Memory size per slot
8 GB, 16 GB, and 32 GB
Memory configurations supported
● 8 GB, 1 x 8 GB, DDR5, 4400 MHz, non-ECC
● 16 GB, 2 x 8 GB, DDR5, 4400 MHz, non-ECC, dual-
channel
● 32 GB, 2 x 16 GB, DDR5, 4400 MHz, non-ECC, dual-
channel
Specifications of Precision 3660 Tower 13