User Manual
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... this guide viii M4A785-M specifications summary x Chapter 1: Product introduction 1.1 Welcome 1-1 1.2 Package contents 1-1 1.3 Special features 1-1 1.3.1 Product highlights 1-1 1.3.2 Innovative ASUS features 1-3 1.4 Before you proceed 1-5 1.5 Motherboard overview 1-6 1.5.1 Placement direction 1-6 1.5.2 Screw holes 1-6 1.5.3 Motherboard layout 1-7 1.5.4 Layout contents 1-7 1.6 Central Processing Unit (CPU 1-8 1.6.1 Installing the CPU 1-8 1.6.2 Installing the heatsink and fan 1-10 1.7 System memory 1-11 1.7.1 Overview 1-11 1.7.2 Memory configurations 1-12 1.7.3 Installing...
... this guide viii M4A785-M specifications summary x Chapter 1: Product introduction 1.1 Welcome 1-1 1.2 Package contents 1-1 1.3 Special features 1-1 1.3.1 Product highlights 1-1 1.3.2 Innovative ASUS features 1-3 1.4 Before you proceed 1-5 1.5 Motherboard overview 1-6 1.5.1 Placement direction 1-6 1.5.2 Screw holes 1-6 1.5.3 Motherboard layout 1-7 1.5.4 Layout contents 1-7 1.6 Central Processing Unit (CPU 1-8 1.6.1 Installing the CPU 1-8 1.6.2 Installing the heatsink and fan 1-10 1.7 System memory 1-11 1.7.1 Overview 1-11 1.7.2 Memory configurations 1-12 1.7.3 Installing...
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...supports: - We recommend a maximum of 4GB or more, Windows® 32-bit operating system may only recognize less than 3GB. M4A785-M specifications summary CPU Chipset Front Side Bus Memory Graphics Expansion slots AMD® Phenom™ II / Athlon™ II / Phenom™ / Athlon™ / Sempron™ ...x PCIe x1 slot 2 x PCI 2.2 slots (continued on the blue slots for the AMD® CPU support list. RGB & HDMI * Refer to www.asus.com for better performance. ** DDR2 1200(O.C.)/1066 is supported by AM3/AM2+ CPU only. *** Due to AM3/AM2+ CPU limitation, only one DDR2 1200(O.C.)/1066...
...supports: - We recommend a maximum of 4GB or more, Windows® 32-bit operating system may only recognize less than 3GB. M4A785-M specifications summary CPU Chipset Front Side Bus Memory Graphics Expansion slots AMD® Phenom™ II / Athlon™ II / Phenom™ / Athlon™ / Sempron™ ...x PCIe x1 slot 2 x PCI 2.2 slots (continued on the blue slots for the AMD® CPU support list. RGB & HDMI * Refer to www.asus.com for better performance. ** DDR2 1200(O.C.)/1066 is supported by AM3/AM2+ CPU only. *** Due to AM3/AM2+ CPU limitation, only one DDR2 1200(O.C.)/1066...
User Manual
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... and delivers better overclocking capabilities with less power consumption. ASUS M4A785-M 1-1 It features dual-channel DDR2 1066 memory support and accelerates data transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus. Before you for the following items. Motherboard Cables Accessories Application DVD Documentations ASUS M4A785-M motherboard 2 x Serial ATA cables 1 x Ultra DMA 133/100/66 cable...
... and delivers better overclocking capabilities with less power consumption. ASUS M4A785-M 1-1 It features dual-channel DDR2 1066 memory support and accelerates data transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus. Before you for the following items. Motherboard Cables Accessories Application DVD Documentations ASUS M4A785-M motherboard 2 x Serial ATA cables 1 x Ultra DMA 133/100/66 cable...
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It features dual-channel DDR2 1066 memory support, data transfer rate up to 5200MT/s HyperTransport™ 3.0 (HT 3.0) interface speed and PCI Express 2.0 x16 graphics. HyperTransport™ 3.0 support HyperTransport™ 3.0 technology provides 2.6 times more bandwidth to 5200MT/s via coaxial and optical S/PDIF_OUT (SONYPHILIPS Digital Interface) jacks. DDR2 1200 (O.C.) This motherboard supports DDR2 1200 (O.C.) that...
It features dual-channel DDR2 1066 memory support, data transfer rate up to 5200MT/s HyperTransport™ 3.0 (HT 3.0) interface speed and PCI Express 2.0 x16 graphics. HyperTransport™ 3.0 support HyperTransport™ 3.0 technology provides 2.6 times more bandwidth to 5200MT/s via coaxial and optical S/PDIF_OUT (SONYPHILIPS Digital Interface) jacks. DDR2 1200 (O.C.) This motherboard supports DDR2 1200 (O.C.) that...
User Manual
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...DIMM_A1 and DIMM_A2 DIMM_B1 and DIMM_B2 ASUS M4A785-M 1-11 DO NOT forget to the retention module base. DDR2 DIMMs are notched differently to prevent installation on the retention mechanism to secure the heatsink and fan to the connector on the motherboard labeled CPU_FAN. The figure illustrates the... as a DDR DIMM but has a 240-pin footprint compared to plug this connector. 1.7 System memory 1.7.1 Overview The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets. When the fan and heatsink assembly is in place, connect the CPU fan...
...DIMM_A1 and DIMM_A2 DIMM_B1 and DIMM_B2 ASUS M4A785-M 1-11 DO NOT forget to the retention module base. DDR2 DIMMs are notched differently to prevent installation on the retention mechanism to secure the heatsink and fan to the connector on the motherboard labeled CPU_FAN. The figure illustrates the... as a DDR DIMM but has a 240-pin footprint compared to plug this connector. 1.7 System memory 1.7.1 Overview The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets. When the fan and heatsink assembly is in place, connect the CPU fan...
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...512MB, 1GB, 2GB, and 4GB unbuffered ECC and non-ECC DDR2 DIMMs into the DIMM sockets. • You may install varying memory sizes in Channel A and Channel B. AD21066E002GU 78.0AG9S.9K4 78.AAGAL.9KZ CM2X1024-8500C5 CM2X1024-8500C5D CM2X2048-8500C5D BL12864AA1065.8FE5 CT25664AA1067.16FE1...Chip Brand DS N/A DS N/A DS N/A DS Corsair DS N/A DS N/A SS N/A DS Micron SS N/A DS N/A DS N/A DS N/A DS N/A Chip NO. M4A785-M Motherboard Qualified Vendors Lists (QVL) DDR2-1200(O.C.)MHz capability Size Vendor Part No. 2048MB(Kit of 2) Kingston KHX96002K2/2G 2048MB(Kit of 2) OCZ OCZ2FX12002GK 2048MB(Kit...
...512MB, 1GB, 2GB, and 4GB unbuffered ECC and non-ECC DDR2 DIMMs into the DIMM sockets. • You may install varying memory sizes in Channel A and Channel B. AD21066E002GU 78.0AG9S.9K4 78.AAGAL.9KZ CM2X1024-8500C5 CM2X1024-8500C5D CM2X2048-8500C5D BL12864AA1065.8FE5 CT25664AA1067.16FE1...Chip Brand DS N/A DS N/A DS N/A DS Corsair DS N/A DS N/A SS N/A DS Micron SS N/A DS N/A DS N/A DS N/A DS N/A Chip NO. M4A785-M Motherboard Qualified Vendors Lists (QVL) DDR2-1200(O.C.)MHz capability Size Vendor Part No. 2048MB(Kit of 2) Kingston KHX96002K2/2G 2048MB(Kit of 2) OCZ OCZ2FX12002GK 2048MB(Kit...
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...• •• SS: Single-sided / DS: Double-sided DIMM support: • A*: Supports one module inserted into any slot as single-channel memory configuration. • B*: Supports one pair of modules inserted into either the blue slots or the black slots as one pair of dual-channel... memory configuration. • C*: Supports two pairs of modules inserted into both the blue slots and the black slots as two pairs of dual-channel memory configuration. Visit the ASUS website at www.asus.com for the latest QVL. 1-16 Chapter 1: ...
...• •• SS: Single-sided / DS: Double-sided DIMM support: • A*: Supports one module inserted into any slot as single-channel memory configuration. • B*: Supports one pair of modules inserted into either the blue slots or the black slots as one pair of dual-channel... memory configuration. • C*: Supports two pairs of modules inserted into both the blue slots and the black slots as two pairs of dual-channel memory configuration. Visit the ASUS website at www.asus.com for the latest QVL. 1-16 Chapter 1: ...
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... failure! • If the steps above do not need to clear the RTC when the system hangs due to clear the CMOS RTC RAM data. ASUS M4A785-M 1-19 Plug the power cord and turn ON the computer. 4. For system failure due to pins 1-2. 3. Keep the cap on CLRTC jumper default position. Clear..., then move the jumper again to overclocking. To erase the RTC RAM: 1. Hold down and reboot the system so the BIOS can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. Shut down the key during the boot process and enter BIOS...
... failure! • If the steps above do not need to clear the RTC when the system hangs due to clear the CMOS RTC RAM data. ASUS M4A785-M 1-19 Plug the power cord and turn ON the computer. 4. For system failure due to pins 1-2. 3. Keep the cap on CLRTC jumper default position. Clear..., then move the jumper again to overclocking. To erase the RTC RAM: 1. Hold down and reboot the system so the BIOS can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. Shut down the key during the boot process and enter BIOS...
User Manual
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...for the CPU and other system devices. Processor Displays the auto-detected CPU specification. System Memory Displays the auto-detected system memory. 2.4 Advanced menu The Advanced menu items allow you an overview of the Advanced menu... items. Incorrect field values can cause the system to achieve desired CPU internal frequency. CPU Overclocking [Auto] Selects the CPU overclocking options to malfunction. Configuration options: [Manual] [Auto] [Overclock Profile] [Test Mode] ASUS M4A785...
...for the CPU and other system devices. Processor Displays the auto-detected CPU specification. System Memory Displays the auto-detected system memory. 2.4 Advanced menu The Advanced menu items allow you an overview of the Advanced menu... items. Incorrect field values can cause the system to achieve desired CPU internal frequency. CPU Overclocking [Auto] Selects the CPU overclocking options to malfunction. Configuration options: [Manual] [Auto] [Overclock Profile] [Test Mode] ASUS M4A785...
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... item to [Manual]. Configuration options: [Auto] [DCT 0] [DCT 1] [Both] The following item only appears when you set Memory Clock Mode to [DCT 0], [DCT 1] or [Both]. The values range from 1.20000V to adjust the value. Memclock Value [400MHz... [4 CLK] tWTR [Auto] Configuration options: [Auto] [1 CLK] [2 CLK] [3 CLK] tWRWR [Auto] Configuration options: [Auto] [1 CLK] [2 CLK] [3 CLK] [4 CLK] ASUS M4A785-M 2-11 HT Over Voltage [Auto] Sets the CPU over voltage. Use the / keys to 1.38000V with a 0.01500V increment. Configuration options: [200MHz] [266MHz] [333MHz] [400MHz] [...
... item to [Manual]. Configuration options: [Auto] [DCT 0] [DCT 1] [Both] The following item only appears when you set Memory Clock Mode to [DCT 0], [DCT 1] or [Both]. The values range from 1.20000V to adjust the value. Memclock Value [400MHz... [4 CLK] tWTR [Auto] Configuration options: [Auto] [1 CLK] [2 CLK] [3 CLK] tWRWR [Auto] Configuration options: [Auto] [1 CLK] [2 CLK] [3 CLK] [4 CLK] ASUS M4A785-M 2-11 HT Over Voltage [Auto] Sets the CPU over voltage. Use the / keys to 1.38000V with a 0.01500V increment. Configuration options: [200MHz] [266MHz] [333MHz] [400MHz] [...
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tRDRD [Auto] Configuration options: [Auto] [3 CLK] [4 CLK] [5 CLK] tRFC0/1/2/3 [Auto] Configuration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns] Memory Over Voltage [Auto] Sets the memory over voltage. Configuration options: [Enabled] [Disabled] C1E Configuration [Disabled] Enables or disables the CPU Enhanced Halt (C1E) function, a CPU power-saving function in this menu ...
tRDRD [Auto] Configuration options: [Auto] [3 CLK] [4 CLK] [5 CLK] tRFC0/1/2/3 [Auto] Configuration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns] Memory Over Voltage [Auto] Sets the memory over voltage. Configuration options: [Enabled] [Disabled] C1E Configuration [Disabled] Enables or disables the CPU Enhanced Halt (C1E) function, a CPU power-saving function in this menu ...
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...Interleaving [XOR of Address bits [20:16, 9]] Enable Clock to All DIMMs [Disabled] Enables unused Clocks to enable the channel memory interleaving. Configuration options: [Disabled] [Enabled] MemClk Tristate C3/ATLVID [Disabled] Enables or disables MemClk Tri-Stating during C3 and...] [32MB] [64MB] [128MB] [256MB] [512MB] ASUS M4A785-M 2-13 Configuration options: [Disabled] [Basic] [Good] [Super] [Max] [User] Internal Graphics Primary Video Controller [GFX0-GPP-IGFX-PCI] Allows you to report and correct memory errors automatically. Configuration options: [Auto] [Always] Power Down...
...Interleaving [XOR of Address bits [20:16, 9]] Enable Clock to All DIMMs [Disabled] Enables unused Clocks to enable the channel memory interleaving. Configuration options: [Disabled] [Enabled] MemClk Tristate C3/ATLVID [Disabled] Enables or disables MemClk Tri-Stating during C3 and...] [32MB] [64MB] [128MB] [256MB] [512MB] ASUS M4A785-M 2-13 Configuration options: [Disabled] [Basic] [Good] [Super] [Max] [User] Internal Graphics Primary Video Controller [GFX0-GPP-IGFX-PCI] Allows you to report and correct memory errors automatically. Configuration options: [Auto] [Always] Power Down...
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... item shows None. The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA devices and setting the memory size block for the USB storage device to initialize. The Module Version and USB Devices Enabled items show the auto-detected values. If...] [Enabled] Legacy USB Support [Auto] Enables or disables support for PCI/PnP devices. Configuration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM] ASUS M4A785-M 2-15 2.4.5 PCIPnP The PCI PnP menu items allow you to change the USB-related features. If detected, the USB controller legacy mode is set the...
... item shows None. The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA devices and setting the memory size block for the USB storage device to initialize. The Module Version and USB Devices Enabled items show the auto-detected values. If...] [Enabled] Legacy USB Support [Auto] Enables or disables support for PCI/PnP devices. Configuration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM] ASUS M4A785-M 2-15 2.4.5 PCIPnP The PCI PnP menu items allow you to change the USB-related features. If detected, the USB controller legacy mode is set the...