MSI Z77A User Manual

1-15
MS-7752
Chapter 1
Power Supply
JPWR1: ATX 24-pn Power Connector
Ths connector allows you to connect an ATX 24-pn power supply. To connect the ATX
24-pn power supply, algn the power supply cable wth the connector and 󰘰rmly press
the cable nto the connector. If done correctly, the clp on the power cable should be
hooked on the manboard’s power connector.
13.+3.3
V
1.+3.3
V
14.-12V
2.+3.3
V
15.Ground
3
.Ground
16.PS-ON
#
4.+5
V
17.Ground
5
.Ground
18.Ground
6.+5
V
19.Ground
7
.Ground
22.+5
V
10.+12V
20.Res
8.PW
R O
K
23.+5
V
11
.+12V
21.+5
V
9.5VSB
24.Ground
12.+3.3
V
JPWR2: ATX 8-pn Power Connector
Ths connector provdes 12V power to the CPU.
7.+12V
3.
Ground
5.+12V
1.Ground
8.+12V
4
.Ground
6.+12V
2
.Ground
Important
Make sure that all the power cables are securely connected to a proper ATX power sup-
ply to ensure stable operaton of the manboard.

MSI Z77A Specifications

General

CPU Socket	LGA 1155
Chipset	Intel Z77
Memory Type	DDR3
Memory Slots	4
Maximum Memory Supported	32GB
Form Factor	ATX
Memory Speed	1066/1333/1600/1866 MHz
SATA 3Gb/s Ports	4
USB 3.0 Ports	4
Onboard Video	Yes (via CPU)
Onboard LAN	Realtek 8111E