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Asus M4A78-EM User Manual - Page 19

Motherboard layout, Layout contents - ram

UPC - 610839169436

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1.5.3 Motherboard layout 1.5.4 Layout contents Connectors/Jumpers/Slots/LED 1. CPU, power, and chassis fan connectors (4-pin CPU_FAN, 3-pin PWR_FAN, and 3-pin CHA_FAN) 2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 3. CPU Socket AM2+ 4. DDR2 DIMM slots 5. LPT connector (26-1 pin LPT) 6. Serial port connector (10-1 pin COM1) 7. IDE connector (40-1 pin PRI_IDE) 8. System panel connector (20-8 pin PANEL) Page Connectors/Jumpers/Slots/LED 1-28 9. Clear RTC RAM (3-pin CLRTC) 1-22 10. Onboard LED (SB_PWR) 1-8 11. SATA connectors (7-pin SATA1, SATA2, SATA3, SATA5, SATA6) 1-11 12. USB connectors (10-1 pin USB78, USB910, USB1112) 1-23 13. Digital audio connector (4-1 pin SPDIF_OUT) 1-24 14. Front panel audio connector (10-1 pin AAFP) 1-23 15. Optical drive audio connector (4-pin CD) 1-25 Page 1-18 1-5 1-24 1-26 1-27 1-27 1-26 ASUS M4A78-EM 1-7

Section	Page
Notices	6
Safety information	7
About this guide	7
M4A78-EM specifications summary	9
Chapter 1: Product introduction	13
1.1 Welcome!	13
1.2 Package contents	13
1.3 Special features	13
1.3.1 Product highlights	13
1.3.2 Innovative ASUS features	15
1.4 Before you proceed	17
1.5 Motherboard overview	18
1.5.1 Placement direction	18
1.5.2 Screw holes	18
1.5.3 Motherboard layout	19
1.5.4 Layout contents	19
1.6 Central Processing Unit (CPU)	20
1.6.1 Installing the CPU	20
1.6.2 Installing the heatsink and fan	22
1.7 System memory	23
1.7.1 Overview	23
1.7.2 Memory configurations	24
1.7.3 Installing a DIMM	28
1.7.4 Removing a DIMM	28
1.8 Expansion slots	29
1.8.1 Installing an expansion card	29
1.8.2 Configuring an expansion card	29
1.8.3 PCI slots	29
1.8.4 PCI Express x1 slot	29
1.8.5 PCI Express x16 slot	29
1.9 Jumpers	30
1.10 Connectors	31
1.10.1 Rear panel ports	31
1.10.2 Internal connectors	34
1.11 Software support	41
1.11.1 Installing an operating system	41
1.11.2 Support DVD information	41
Chapter 2: BIOS information	43
2.1 Managing and updating your BIOS	43
2.1.1 ASUS Update utility	43
2.1.2 ASUS EZ Flash 2 utility	45
2.1.3 ASUS CrashFree BIOS 3 utility	46
2.2 BIOS setup program	47
2.2.1 BIOS menu screen	48
2.2.2 Menu bar	48
2.2.3 Navigation keys	48
2.2.4 Menu items	49
2.2.5 Submenu items	49
2.2.6 Configuration fields	49
2.2.7 Pop-up window	49
2.2.8 Scroll bar	49
2.2.9 General help	49
2.3 Main menu	50
2.3.1 System Time	50
2.3.2 System Date	50
2.3.3 Primary IDE Master/Slave, SATA 1/2/3/5/6, E-SATA	50
2.3.4 SATA Configuration	51
2.3.5 System Information	51
2.4 Advanced menu	52
2.4.1 JumperFree Configuration	52
2.4.2 CPU Configuration	53
2.4.3 Chipset	54
2.4.4 Onboard Device Configuration	55
2.4.5 PCIPnP	56
2.4.6 USB Configuration	56
2.5 Power menu	57
2.5.1 Suspend Mode	57
2.5.2 ACPI 2.0 Support	57
2.5.3 ACPI APIC Support	57
2.5.4 APM Configuration	57
2.5.5 HW Monitor Configuration	58
2.6 Boot menu	59
2.6.1 Boot Device Priority	59
2.6.2 Boot Settings Configuration	59
2.6.3 Security	60
2.7 Tools menu	62
2.7.1 ASUS EZ Flash 2	62
2.7.2 Express Gate	62
2.7.3 AI NET 2	62