1-3Chapter 1: Product introduction
1.2.2 Layout contents
Connectors/Jumpers/Slots/LED Page Connectors/Jumpers/Slots/LED Page
1. CPU and chassis fan connectors (4-pin
CPU_FAN, 3-pin CHA_FAN)
1-11 9. Clear RTC RAM (3-pin CLRTC) 1-8
2. ATX power connectors (24-pin EATXPWR,
4-pin ATX12V)
1-12 10. Intel
®
H67 Serial ATA 6.0Gb/s connectors
(7-pin SATA6G_1/2 [gray])
1-13
3. Intel
®
LGA1155 CPU socket 1-3 11. Intel
®
H67 Serial ATA 3.0Gb/s connectors
(7-pin SATA3G_1~4 [blue])
1-14
4. DDR3 DIMM slots 1-4 12. Speaker connector (4-pin SPEAKER) 1-14
5. Serial port connector (10-1 pin COM1) 1-16 13. System panel connector (10-1 pin F_PANEL) 1-15
6. LPT connector (26-1 pin LPT) 1-15 14. USB connectors (10-1 pin USB78, USB910,
USB1112, USB1314)
1-16
7. Standby power LED (SB_PWR) 1-1 15. Front panel audio connector (10-1 pin AAFP) 1-10
8. Chassis intrusion connector (4-1 pin CHASSIS) 1-11 16. Digital audio connector (4-1 pin SPDIF_OUT) 1-12
1.3 Central Processing Unit (CPU)
The motherboard comes with a surface mount LGA1155 socket designed for the Intel
®
second generation Core™ i7 / Core™ i5 / Core™ i3 processors.
Unplug all power cables before installing the CPU.
• Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the
socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing,
or if you see any damage to the PnP cap/socket contacts/motherboard components.
ASUS will shoulder the cost of repair only if the damage is shipment/transit-related.
• Keep the cap after installing the motherboard. ASUS will process Return Merchandise
Authorization (RMA) requests only if the motherboard comes with the cap on the
LGA1155 socket.
• The product warranty does not cover damage to the socket contacts resulting from
incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP
cap.
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