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Motherboard layout, Layout contents - intel b75

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1.5.3 Motherboard layout 12 3 19.8cm(7.8in) KBMS_USB34 1 4 CPU_FAN ATX12V DDR3 DIMM_A1 (64bit, 240-pin module) DDR3 DIMM_B1 (64bit, 240-pin module) VGA DVI LGA1155 2 EATXPWR 24.4cm(9.6in) USB3_12 LAN_USB12 AUDIO CHA_FAN RTL 8111F Lithium Cell CMOS Power PCIEX16_1 P8B75-M LX USB3_34 5 SATA3G_1 Super I/O PCIEX1_1 PCIEX1_2 CLRTC CHASSIS Intel® B75 SATA3G_2 6 8Mb BIOS 8Mb BIOS VIA VT1708S SPDIF_OUT AAFP COM1 LPT PCI1 SB_PWR USB78 USB56 SATA3G_4 SATA3G_3 SATA3G_5 SATA6G_1 SPEAKER F_PANEL 17 16 15 14 13 12 11 10 9 8 6 7 1.5.4 Layout contents Connectors/Jumpers/Slots/LED 1. CPU and chassis fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN) 2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 3. Intel® LGA1155 CPU socket Page Connectors/Jumpers/Slots/LED 1-27 10. Clear RTC RAM (3-pin CLRTC) 1-26 11. USB 2.0 connectors (10-1 pin USB56, USB78) 1-8 12. Onboard LED (SB_PWR) Page 1-22 1-30 1-31 4. DDR3 DIMM slots 1-13 13. LPT connector (26-1 pin LPT) 1-27 5. USB 3.0 connector (20-1 pin USB3_34) 1-30 14 Digital audio connector (4-1 pin SPDIF_OUT) 1-25 6. Intel® B75 Serial ATA 3.0Gb/s connectors 1-29 15. Serial port connector (10-1 pin COM1) 1-26 (7-pin SATA3G_1~5 [blue]) 7. Intel® B75 Serial ATA 6.0Gb/s connectors (7-pin SATA6G_1 [gray]) 1-29 16. Front panel audio connector (10-1 pin AAFP) 1-25 8. System panel connector (10-1 pin F_PANEL) 1-28 17. Chassis intrusion connector (4-1 pin 1-31 CHASSIS) 9. Speaker connector (4-pin SPEAKER) 1-28 ASUS P8B75-M LX 1-7

Section	Page
Safety information	6
About this guide	6
P8B75-M LX specifications summary	8
Chapter 1	11
Product introduction	11
1.1 Welcome!	11
1.2 Package contents	11
1.3 Special features	11
1.3.1 Product highlights	11
1.3.2 Innovative ASUS features	13
1.4 Before you proceed	15
1.5 Motherboard overview	16
1.5.1 Placement direction	16
1.5.2 Screw holes	16
1.5.3 Motherboard layout	17
1.5.4 Layout contents	17
1.6 Central Processing Unit (CPU)	18
1.6.1 Installing the CPU	19
1.6.2 CPU heatsink and fan assembly installation	21
1.7 System memory	23
1.7.1 Overview	23
1.7.2 Memory configurations	23
1.7.3 Installing a DIMM	30
1.7.4 Removing a DIMM	30
1.8 Expansion slots	31
1.8.1 Installing an expansion card	31
1.8.2 Configuring an expansion card	31
1.8.3 PCI slot	31
1.8.4 PCI Express 2.0 x1 slots	31
1.8.5 PCI Express 3.0/2.0 x16 slot	31
1.9 Jumpers	32
1.10 Connectors	33
1.10.1 Rear panel connectors	33
1.10.2 Internal connectors	35
1.11 Onboard LEDs	41
1.13 Software support	42
1.13.1 Installing an operating system	42
1.13.2 Support DVD information	42
1.13.3 Intel® SBA support	43
Chapter 2	45
BIOS information	45
2.1 Managing and updating your BIOS	45
2.1.1 ASUS Update utility	45
2.1.2 ASUS EZ Flash 2	46
2.1.3 ASUS CrashFree BIOS 3 utility	47
2.1.4 ASUS BIOS Updater	48
2.2 BIOS setup program	50
2.3 Main menu	54
2.3.1 System Language [English]	54
2.3.2 System Date [Day xx/xx/xxxx]	54
2.3.3 System Time [xx:xx:xx]	54
2.3.4 Security	54
2.4 Ai Tweaker menu	56
2.4.1 ASUS MultiCore Enhancement [Enabled].	56
2.4.2 CPU bus speed: DRAM speed ratio mode [Auto]	56
2.4.3 Memory Frequency [Auto]	57
2.4.4 iGPU Max. Frequency [Auto]	57
2.4.5 GPU Boost [OK]	57
2.4.6 DRAM Timing Control	57
2.4.7 CPU Power Management	57
2.4.8 CPU Offset Mode Sign [+]	58
2.4.9 DRAM Voltage [Auto]	58
2.4.10 VCCSA Voltage [Auto]	59
2.4.11 PCH Voltage [Auto]	59
2.5 Advanced menu	60
2.5.1 CPU Configuration	60
2.5.2 PCH Configuration	61
2.5.3 SATA Configuration	62
2.5.4 System Agent Configuration	63
2.5.5 AMT Configuration	63
2.5.6 USB Configuration	64
2.5.7 Onboard Devices Configuration	65
2.5.8 APM	66
2.5.9 Network Stack	66
2.6 Monitor menu	67
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF]	68
2.6.2 CPU / Chassis Fan Speed [xxxx RPM] or [Ignore] / [N/A]	68
2.6.3 CPU Q-Fan Control [Enabled]	68
2.6.4 Chassis Q-Fan Control [Enabled]	69
2.6.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage	69
2.6.6 Anti Surge Support [Enabled]	69
2.7 Boot menu	70
2.7.1 Bootup NumLock State [On]	70
2.7.2 Full Screen Logo [Enabled]	70
2.7.3 Wait for ‘F1’ If Error [Enabled]	70
2.7.4 Option ROM Messages [Force BIOS]	71
2.7.5 Setup Mode [EZ Mode]	71
2.7.6 UEFI/Legacy Boot [Enabled both UEFI and Legacy]	71
2.7.7 PCI ROM Priority [Legacy ROM]	71
2.7.8 Boot Option Priorities	71
2.7.9 Boot Override	71
2.8 Tools menu	72
2.8.1 ASUS EZ Flash 2 Utility	72
2.8.2 ASUS O.C. Profile	72
2.8.3 ASUS SPD Information	72
2.9 Exit menu	73
Appendices	75
Notices	75

Match case Limit results 1 per page

ASUS P8B75-M LX

1-7

1.5.3

Motherboard layout

1.5.4

Layout contents

Connectors/Jumpers/Slots/LED

Page

Connectors/Jumpers/Slots/LED

Page

CPU and chassis fan connectors (4-pin

CPU_FAN, 3-pin CHA_FAN)

1-27

10.

Clear RTC RAM (3-pin CLRTC)

1-22

ATX power connectors (24-pin EATXPWR,

4-pin ATX12V)

1-26

11.

USB 2.0 connectors (10-1 pin USB56,

USB78)

1-30

Intel

LGA1155 CPU socket

1-8

12.

Onboard LED (SB_PWR)

1-31

DDR3 DIMM slots

1-13

13.

LPT connector (26-1 pin LPT)

1-27

USB 3.0 connector (20-1 pin USB3_34)

1-30

Digital audio connector (4-1 pin SPDIF_OUT)

1-25

Intel

B75 Serial ATA 3.0Gb/s connectors

(7-pin SATA3G_1~5 [blue])

1-29

15.

Serial port connector (10-1 pin COM1)

1-26

Intel

B75 Serial ATA 6.0Gb/s connectors

(7-pin SATA6G_1 [gray])

1-29

16.

Front panel audio connector (10-1 pin AAFP)

1-25

System panel connector (10-1 pin F_PANEL)

1-28

17.

Chassis intrusion connector (4-1 pin

CHASSIS)

1-31

Speaker connector (4-pin SPEAKER)

1-28

P8B75-M LX

PCIEX16_1

PCIEX1_1

PCIEX1_2

PCI1

AAFP

EATXPWR

CPU_FAN

CHA_FAN

Lithium Cell

CMOS Power

Super

I/O

VIA

VT1708S

KBMS_USB34

8Mb

BIOS

8Mb

BIOS

SB_PWR

CLRTC

19.8cm(7.8in)

24.4cm(9.6in)

Intel

B75

DDR3 DIMM_A1 (64bit, 240-pin module)

DDR3 DIMM_B1 (64bit, 240-pin module)

SATA3G_1

SATA3G_2

SATA3G_3

SATA3G_4

SATA6G_1

SATA3G_5

AUDIO

USB3_12

LAN_USB12

SPDIF_OUT

LPT

LGA1155

USB3_34

F_PANEL

SPEAKER

USB56

USB78

COM1

CHASSIS

RTL

8111F

ATX12V

VGA

DVI