AMD KM780V user manual Cool air flowing Hot air flowing out

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for CPUs that demand 125W or 140W power consumption.

Subject 2: Suggestion on choosing electric fan

Both the amount of electric current to MOSFET and the heat produced from the motherboard go up as AMD’s CPU power consumption increases. In this case we recommend users select a CPU fan with air outlet towards MOSFET so that CPU fan can carry away heat produced by MOSFET, for better heat dissipation effects. At the same time we suggest using well-ventilated cases to maintain temperature as 38approximately inside.( 38is recommended by CPU manufactures)

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Figure 1----CPU Fan can not blow off the heat produced by MOSFET. We suggest not to

using fans of this kind

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Figure 2----CPU Fan can blow off the heat produced by MOSFET. We suggest using fans of

this kind

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Contents KM780V Rev Environmental Protection Announcement Environmental Safety InstructionTable of Content Chapter Item Checklist Special Features of MotherboardChipset DesignCPU Socket AM2+ Memory SocketFor KM780V model Layout DiagramInstall Socket AM2+ Supported AMD Processor Hardware InstallationInstall Memory Maximum CapacityExpansion Cards Connectors Connectors, Headers & Jumpers SettingPrimary IDE Connector 40-pin block IDE1 Floppy drive Connector 34-pin block FDDHeaders Sub 15-pin Connector VGADigital Visual Interface DVI High-Definition Multimedia Interface HdmiPower LED PWR LED1 Speaker connector SPEAK1Reset switch lead Reset Power switch PWR BTNCD Audio-In Headers 4-pin CDIN1 FAN Power Headers SYSFAN1, SYSFAN2 3-pin, Cpufan 4-pinKeyboard/USB function Enabled/Disabled JP1 Jumper SettingHDMISPDIFOut header SPDIFOut Cmos RAM Clear 3-pin JbatCmos RAM Clear Setting How to Update Bios Trouble ShootingUseful Help Software List Chapter Software SetupWindows XP Appendix Solution:Cool air flowing Hot air flowing out