Asus M5A78L User Manual

1.7.2 Memory congurations
You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC and non-ECC DDR3 DIMMs
into the DIMM sockets.
• You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
recommend that you obtain memory modules from the same vendor.
• We recommend that you install the memory modules from the blue slots for better
overclocking capability.
• AMD
®
FX™ Series CPU on this motherboard supports up to DDR3 1866MHz as its
standard memory frequency.
• Due to the CPU specication, AMD
®
100 and 200 series CPUs support up to DDR3
1066MHz. With ASUS design, this motherboard can support up to DDR3 1333MHz.
• When overclocking, some AMD CPUs may not support DDR3 1600MHz or higher
frequency DIMMs.
• Due to the memory address limitation on 32-bit Windows
®
OS, when you install 4GB
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
followings:
- Install a maximum of 3GB system memory if you are using a 32-bit Windows
®
OS.
- Use a 64-bit Windows
®
OS if you want to install 4GB or more memory on the
motherboard.
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
M5A78L series Motherboards Qualied Vendors Lists (QVL)
DDR3-2000(O.C.) MHz capability
Vendor Part No. Size
SS/
DS
Chip
Brand
Chip
NO.
CL Voltage
DIMM support
A* B* C*
Transcend TX2400KLU-4GK(XMP) 4GB ( 2x 2GB ) DS - - 9-11-9-28 1.65V • •
Vendor Part No. Size SS/
DS
Chip
Brand
Chip
NO.
CL Voltage DIMM support
A* B* C*
Corsair CMT4GX3M2A1866C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • •
Kingston KHX1866C9D3T1K3/3GX(XMP) 3GB(3 x 1GB) SS - - - 1.65V • •
Kingston KHX1866C9D3T1K3/6GX(XMP) 6GB(3 x 2GB) SS - - - 1.65V • •
OCZ OCZ3G1866LV4GK 4GB(2 x 2GB) DS - - 10-10-10-27 1.65V • •
OCZ OCZ3P1866LV4GK 4GB(2 x 2GB) DS - - 9-9-9-27 1.65V • •
DDR3-1866(O.C.)MHz capability
Chapter 1: Product introduction1-12

Asus M5A78L Specifications

General

Memory channels	Dual-channel
Number of memory slots	4
Maximum internal memory	16 GB
Supported memory clock speeds	1066, 1333, 1600, 1800, 1866, 2000 MHz
Processor socket	Socket AM3
Processor manufacturer	AMD
Compatible processor series	AMD Phenom II X2, AMD Phenom II X4, AMD Phenom II X6
USB 2.0 connectors	3
S/PDIF out connector	Yes
Number of SATA II connectors	6
PS/2 ports quantity	2
USB 2.0 ports quantity	USB 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.
Firewire (IEEE 1394) ports	0
Audio chip	Realtek ALC887
Component for	PC
Motherboard chipset	AMD 760G
Audio output channels	7.1 channels
Motherboard form factor	ATX
Motherboard southbridge	AMD SB710
Compatible operating systems	-
On-board graphics card	No
Parallel processing technology support	Not supported
RAID levels	0, 1, 10, JBOD
Trial software	Antivirus
Bundled software	ASUS PC Probe II ASUS Update
LAN controller	Realtek RTL8111E
Ethernet interface type	Gigabit Ethernet
BIOS type	AMI
ACPI version	2.0a
BIOS memory size	16 Mbit

Weight and Dimensions

Depth	203 mm
Width	305 mm