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... vi H81M-C specifications summary vi Product introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-1 1.3 Central Processing Unit (CPU 1-3 1.4 System memory 1-7 1.5 Expansion slots 1-9 1.6 Jumpers 1-10 1.7 Connectors 1-12 1.8 Onboard LEDs 1-19 1.9 Software support 1-20... BIOS information 2.1 Managing and updating your BIOS 2-1 2.2 BIOS setup program 2-6 2.3 My Favorites 2-10 2.4 Main menu 2-11 2.5 Ai Tweaker menu 2-13 2.6 Advanced menu 2-22 2.7 Monitor menu 2-31 2.8 Boot menu 2-34 2.9 Tools menu 2-40 2.10 Exit menu 2-41 Appendices Notices...A-1 ASUS...
... vi H81M-C specifications summary vi Product introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-1 1.3 Central Processing Unit (CPU 1-3 1.4 System memory 1-7 1.5 Expansion slots 1-9 1.6 Jumpers 1-10 1.7 Connectors 1-12 1.8 Onboard LEDs 1-19 1.9 Software support 1-20... BIOS information 2.1 Managing and updating your BIOS 2-1 2.2 BIOS setup program 2-6 2.3 My Favorites 2-10 2.4 Main menu 2-11 2.5 Ai Tweaker menu 2-13 2.6 Advanced menu 2-22 2.7 Monitor menu 2-31 2.8 Boot menu 2-34 2.9 Tools menu 2-40 2.10 Exit menu 2-41 Appendices Notices...A-1 ASUS...
User Guide
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... your motherboard package for the following items. Motherboard Cables Accessories Application DVD Documentation ASUS H81M-C motherboard 2 x Serial ATA 6.0 Gb/s cables 1 x I/O Shield Support DVD User Guide If any of the above items is subject to www.asus.com for Intel® CPU support list. Supports DVI-D with max. Intel® H81 Express Chipset 2 x DIMM, max. 16GB, DDR3 1600...
... your motherboard package for the following items. Motherboard Cables Accessories Application DVD Documentation ASUS H81M-C motherboard 2 x Serial ATA 6.0 Gb/s cables 1 x I/O Shield Support DVD User Guide If any of the above items is subject to www.asus.com for Intel® CPU support list. Supports DVI-D with max. Intel® H81 Express Chipset 2 x DIMM, max. 16GB, DDR3 1600...
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H81M-C specifications summary Internal connectors BIOS features Manageability Support DVD Operating System Support Form factor 2 x USB 2.0/1.1 connectors support additional 4 USB 2.0 ports 2 x SATA 6.0 Gb/s connectors 2 x SATA 3.0 Gb/s connectors 1 x CLRTC jumper 1 x 4-pin CPU fan connector 1 x 4-pin Chassis fan connectors 1 x Front panel audio connector (AAFP) 1 x System panel ...PnP, DMI v2.0, WfM2.0, SM BIOS v2.7, ACPI v2.0a, SLP3.0, EUP-ready WOL, PXE, PME Wake up Drivers ASUS utilities EZ Update Anti-virus software (OEM version) Windows® 8 / Windows® 7 uATX form factor: 9.6"x 7"...
H81M-C specifications summary Internal connectors BIOS features Manageability Support DVD Operating System Support Form factor 2 x USB 2.0/1.1 connectors support additional 4 USB 2.0 ports 2 x SATA 6.0 Gb/s connectors 2 x SATA 3.0 Gb/s connectors 1 x CLRTC jumper 1 x 4-pin CPU fan connector 1 x 4-pin Chassis fan connectors 1 x Front panel audio connector (AAFP) 1 x System panel ...PnP, DMI v2.0, WfM2.0, SM BIOS v2.7, ACPI v2.0a, SLP3.0, EUP-ready WOL, PXE, PME Wake up Drivers ASUS utilities EZ Update Anti-virus software (OEM version) Windows® 8 / Windows® 7 uATX form factor: 9.6"x 7"...
User Guide
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...4GB or more on XMP mode will run at the maximum transfer rate of the following: - ASUS H81M-C 1-7 DO NOT install a DDR or DDR2 memory module to the memory address limitation on 32...two Double Data Rate 3 (DDR3) Dual Inline Memory Module (DIMM) sockets. According to Intel® CPU spec, DIMM voltage below 1.65V is then mapped for single-channel operation. • Due to Intel...chipset limitation, DDR3 1600MHz and higher memory modules on the motherboard. • This motherboard does not support DIMMs made up of the lower-sized channel for the OS can be about 3GB or less....
...4GB or more on XMP mode will run at the maximum transfer rate of the following: - ASUS H81M-C 1-7 DO NOT install a DDR or DDR2 memory module to the memory address limitation on 32...two Double Data Rate 3 (DDR3) Dual Inline Memory Module (DIMM) sockets. According to Intel® CPU spec, DIMM voltage below 1.65V is then mapped for single-channel operation. • Due to Intel...chipset limitation, DDR3 1600MHz and higher memory modules on the motherboard. • This motherboard does not support DIMMs made up of the lower-sized channel for the OS can be about 3GB or less....
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...the fan connectors! Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Only the 4-pin CPU fan supports the ASUS Fan Xpert 2 feature. 1-16 Chapter 1: Product introduction Do not place jumper caps on the motherboard, ensuring that the black wire...SATA3G_1~2) This connector connects to the fan connectors. The CPU_FAN connector supports a CPU fan of the connector. CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND H81M-C CHA_FAN CHA FAN PWM CHA FAN IN CHA FAN PWR GND H81M-C Fan connectors Do not forget to connect the fan cables to...
...the fan connectors! Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Only the 4-pin CPU fan supports the ASUS Fan Xpert 2 feature. 1-16 Chapter 1: Product introduction Do not place jumper caps on the motherboard, ensuring that the black wire...SATA3G_1~2) This connector connects to the fan connectors. The CPU_FAN connector supports a CPU fan of the connector. CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND H81M-C CHA_FAN CHA FAN PWM CHA FAN IN CHA FAN PWR GND H81M-C Fan connectors Do not forget to connect the fan cables to...
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...equal to automatically optimize the CPU ratio, BCLK frequency, and memory parameters. If you install memory modules supporting the eXtreme Memory Profile (X.M.P.) Technology, select this item to set the profiles supported by your system to ...the 2-Core Ratio Limit. 2-14 Chapter 2: Getting started Select any of these preset overclocking configuration options: [Auto] Loads the optimal settings for maximum performance under XMP/Manual/Userdefined memory frequency mode. Target CPU Graphics Speed : xxxxMHz Displays the target iGPU speed. 2.5.1 ASUS...
...equal to automatically optimize the CPU ratio, BCLK frequency, and memory parameters. If you install memory modules supporting the eXtreme Memory Profile (X.M.P.) Technology, select this item to set the profiles supported by your system to ...the 2-Core Ratio Limit. 2-14 Chapter 2: Getting started Select any of these preset overclocking configuration options: [Auto] Loads the optimal settings for maximum performance under XMP/Manual/Userdefined memory frequency mode. Target CPU Graphics Speed : xxxxMHz Displays the target iGPU speed. 2.5.1 ASUS...
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...0.999V with a 0.001V interval. 2.5.19 SVID Control [Auto] Disabling SVID Support stops the processor from 1.500V to change the settings for the CPU and other system devices. According to Intel CPU specifications, DIMMs with the voltage requirement below 1.65V. 2.6 Advanced menu The Advanced... that you disable this function when overclocking. • The following item appears only when you set SVID Support to [Enabled]. 2.5.20 DRAM Voltage [Auto] Allows you to set the CPU digital I/O voltage offset. Configuration options: [Auto] [Disabled] [Enabled]. • We recommend that you...
...0.999V with a 0.001V interval. 2.5.19 SVID Control [Auto] Disabling SVID Support stops the processor from 1.500V to change the settings for the CPU and other system devices. According to Intel CPU specifications, DIMMs with the voltage requirement below 1.65V. 2.6 Advanced menu The Advanced... that you disable this function when overclocking. • The following item appears only when you set SVID Support to [Enabled]. 2.5.20 DRAM Voltage [Auto] Allows you to set the CPU digital I/O voltage offset. Configuration options: [Auto] [Disabled] [Enabled]. • We recommend that you...
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...support for the CPU. [Disabled] Disables this function. Execute Disable Bit [Enabled] [Enabled] Enables the No-Execution Page Protection Technology. [Disabled] Forces the XD feature flag to always return to cool down. [Disabled] Disables the CPU thermal monitor function. ASUS H81M-C 2-23 2.6.1 CPU... Configuration The items in this function. Intel® Adaptive Thermal Monitor [Enabled] [Enabled] Enables the overheated CPU to throttle its clock speed to zero (0). ...
...support for the CPU. [Disabled] Disables this function. Execute Disable Bit [Enabled] [Enabled] Enables the No-Execution Page Protection Technology. [Disabled] Forces the XD feature flag to always return to cool down. [Disabled] Disables the CPU thermal monitor function. ASUS H81M-C 2-23 2.6.1 CPU... Configuration The items in this function. Intel® Adaptive Thermal Monitor [Enabled] [Enabled] Enables the overheated CPU to throttle its clock speed to zero (0). ...
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...the ASPM support. Active Page Threshold Support [Enabled] The system automatically set to 120. Hybrid Hard Disk Support [Disabled] Allows you to select the PCI Express port speed. Configuration options: [Enabled] [Disabled] ASUS H81M-C 2-25... Ensure that the caching partition size is not enough for Rapid Start Technology to work . Entry on both NB and SB side of the DMI Link. Configuration options: [Auto] [Enabled] [C0/C1] [C2] [C3] [C6] [CPU...
...the ASPM support. Active Page Threshold Support [Enabled] The system automatically set to 120. Hybrid Hard Disk Support [Disabled] Allows you to select the PCI Express port speed. Configuration options: [Enabled] [Disabled] ASUS H81M-C 2-25... Ensure that the caching partition size is not enough for Rapid Start Technology to work . Entry on both NB and SB side of the DMI Link. Configuration options: [Auto] [Enabled] [C0/C1] [C2] [C3] [C6] [CPU...
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...® Smart Connect Technology [Disabled] ISCT Support [Disabled] Allows you to enable or disable VT-d function on random workloads by allowing the drive to enable or disable CPU SA Audio Device. Configuration options: [Native] [Legacy] S.M.A.R.T. Configuration options: [Disabled] [Enabled] 2.6.4 ...as Parallel ATA physical storage devices. [AHCI] Set to [AHCI] when you to enable or disable the ISCT support. Configuration options: [Enabled] [Disabled] CPU Audio Device [Disabled] Allows you to use the AHCI (Advanced Host Controller Interface). Configuration options: [Enabled] [...
...® Smart Connect Technology [Disabled] ISCT Support [Disabled] Allows you to enable or disable VT-d function on random workloads by allowing the drive to enable or disable CPU SA Audio Device. Configuration options: [Native] [Legacy] S.M.A.R.T. Configuration options: [Disabled] [Enabled] 2.6.4 ...as Parallel ATA physical storage devices. [AHCI] Set to [AHCI] when you to enable or disable the ISCT support. Configuration options: [Enabled] [Disabled] CPU Audio Device [Disabled] Allows you to use the AHCI (Advanced Host Controller Interface). Configuration options: [Enabled] [...
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The following four items appear only when you to adjust the minimum CPU fan duty cycle. Chassis Fan Max. Duty Cycle(%) [60] Use the and keys to [Manual]. Configuration options: [Disabled] [Enabled] ASUS H81M-C 2-33 Duty Cycle(%) [20] Use the and keys to disable or set the chassis fan...control parameters. Duty Cycle(%) [100] Use the and keys to 100%. When the CPU temperature is under the lower limit, the CPU fan will operate at the minimum duty cycle. 2.7.6 Anti Surge Support [Disabled] This item allows you to set Chassis Fan Profile to adjust the minimum ...
The following four items appear only when you to adjust the minimum CPU fan duty cycle. Chassis Fan Max. Duty Cycle(%) [60] Use the and keys to [Manual]. Configuration options: [Disabled] [Enabled] ASUS H81M-C 2-33 Duty Cycle(%) [20] Use the and keys to disable or set the chassis fan...control parameters. Duty Cycle(%) [100] Use the and keys to 100%. When the CPU temperature is under the lower limit, the CPU fan will operate at the minimum duty cycle. 2.7.6 Anti Surge Support [Disabled] This item allows you to set Chassis Fan Profile to adjust the minimum ...