H81H3-M4 USER MANUAL
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Motherboard Components
Table of Motherboard Components
LABEL COMPONENTS
1. CPU Socket LGA1150 socket
2. CPU_FAN 4-pin CPU cooling fan connector
3. SYS_FAN 3-pin system cooling fan connector
4. DDR3_1~2 240-pin DDR3 Module slots
5. ATX_POWER Standard 24-pin ATX power connector
6. SATA1~2 Serial ATA 6.0 Gb/s connectors
7. SATA3~4 Serial ATA 3.0 Gb/s connectors
8. CASE CASE open header
9. F_USB1~2 Front panel USB 2.0 headers
10. USBPWR_F Front panel USB power select jumper
11. F_PANEL Front panel switch/LED header
12. COM Onboard serial port header
13. LDC Debug card header
14. SPK Speaker header
15. PCIEX16 PCI Express slot for graphics interface
16. CLR CMOS Clear CMOS jumper
17. F_AUDIO Front panel audio header
18. PCIE1 PCI Express x1 slot
19. ME_UNLOCK ME unlock header-for factory use only
20. ATX12V 4-pin +12V power connector
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