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ASROCK Z490M-ITX/ac User Manual

ASROCK Z490M-ITX/ac
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54
English
DRAM Timing Conguration
Load XMP Setting
Load XMP settings to overclock the memory and perform beyond standard specications.
DRAM Frequency
If [Auto] is selected, the motherboard will detect the memory module(s) inserted
and assign the appropriate frequency automatically.
Primary Timing
CAS# Latency (tCL)
e time between sending a column address to the memory and the beginning of the data
in response.
RAS# to CAS# Delay and Row Precharge (tRCDtRP)
RAS# to CAS# Delay : e number of clock cycles required between the opening of a row
of memory and accessing columns within it.
Row Precharge: e number of clock cycles required between the issuing of the precharge
command and opening the next row.
RAS# Active Time (tRAS)
e number of clock cycles required between a bank active command and issuing the
precharge command.
Command Rate (CR)
e delay between when a memory chip is selected and when the rst active command can
be issued.
Secondary Timing
Write Recovery Time (tWR)
e amount of delay that must elapse aer the completion of a valid write operation,
before an active bank can be precharged.
Refresh Cycle Time (tRFC)
e number of clocks from a Refresh command until the rst Activate command to
the same rank.
RAS to RAS Delay (tRRD_L)
e number of clocks between two rows activated in dierent banks of the same
rank.

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ASROCK Z490M-ITX/ac Specifications

General IconGeneral
HDMI version1.4
PS/2 ports quantity1
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN (RJ-45) ports2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity0
RGB LED pin headerYes
LAN controllerDragon RTL8125BG, Intel I219-V
Wi-Fi standards802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Bluetooth version4.2
Ethernet interface type2.5 Gigabit Ethernet, Gigabit Ethernet
Audio chipRealtek ALC1200
Component forPC
Motherboard chipsetIntel Z490
PC health monitoringFAN, Temperature, Voltage
Audio output channels7.1 channels
Motherboard form factormini ITX
Motherboard chipset familyIntel
Windows operating systems supportedWindows 10
OpenGL version4.5
DirectX version12.0
Maximum resolution4096 x 2304 pixels
Parallel processing technology supportNot supported
Memory channelsDual-channel
Memory slots typeDIMM
Supported memory typesDDR4-SDRAM
Maximum internal memory64 GB
Supported memory clock speeds2133, 2400, 2666, 2800, 2933, 3200, 3600, 3733, 3800, 3866, 4000, 4133, 4266, 4333, 4400 MHz
Cables includedSATA
BIOS typeUEFI AMI
BIOS memory size128 Mbit
System Management BIOS (SMBIOS) version2.7
RAID levels0, 1, 5, 10
Supported storage drive typesHDD & SSD
Supported storage drive interfacesSATA III
Compatible processor seriesIntel Celeron, Intel Core i3, Intel Core i5, Intel Core i7, Intel Core i9, Intel Pentium
Weight and Dimensions IconWeight and Dimensions
Width170 mm

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