Advantech DVMB-554E user manual Frequency / Voltage Control, Spread Spectrum

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3.10 Frequency / Voltage Control

Figure 3.14: Spread Spectrum Control screen

3.10.1 Spread Spectrum

This setting allows you to reduce EMI by modulating the signals the CPU generates so that the spikes are reduced to flatter curves. This is achieved by varying the frequency slightly so that the signal does not use any par- ticular frequency for more than a moment. The choices are “Disabled” and “Enabled”.

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Contents DVMB-554E Copyright Acknowledgements Message to the Customer Certifications Product warranty Initial Inspection Table of Contents Hardware Configuration Award Bios Setup Page 16 FDD, COM, LPT Port Chipset Installation General Information Hardware Configuration IntroductionSystem FeaturesSpecifications Graphics MemoryInput/Output Ethernet LAN Industrial featuresMechanical and environmental specifications Jumpers and Connectors JumpersCNX1 Board Layout Jumper and Connector Locations Jumper and Connector locations G u rDVMB-554E Block Diagram DVMB-554E Block DiagramSafety Precautions Cmos clear J3 Jumper SettingsHow to set jumpers Watchdog timer output J4 Watchdog timer output J44 COM2 RS 232/422/485 mode selector J2 Lvds Power 3.3V/5V selector J6Cache Memory Memory Installation ProceduresSystem Memory CPU FSB and memory speedProcessor Installation Connecting Peripherals Primary IDE Connector CN11 LAN LED indicator USB Ports and LAN Ports CN4, CN5, CN9, CN10VGA and DVI connector module Serial port module COM1/COM2 CM1Fan Connector FN1/FN2/FN3 External PS/2 and Composite TV-Out CN2External Speaker CNX1-17 Front Panel Connectors CNX1/CN13Power LED and Keyboard Lock CN13 ATX Soft Power Switch CNX1-21 Reset Connector CNX1-18HDD LED Connector CNX1-19 SM Bus Connector CNX1-29H/W Monitor Alarm CN12 Line Out, Mic In Connector CN3Aux Line-In Connector CN7 Serial ATA Interface SA1, SA2DVA-210 Connector VDO1 Auxiliary 4-pin power connector ATX1Gpio connector GPIO1 Lvds connector VCN1 Lvds connector VCN1LCD Inverter Power connector BKL1 Bios Setup Award Bios Setup Cmos RAM Auto-backup and RestoreDate Entering SetupStandard Cmos Setup TimeStandard Cmos Features Screen Halt OnAdvanced Bios Features Advanced Bios features screenQuick Power On Self Test CPU FeaturesHard Disk Boot Priority First/Second Boot DeviceTypematic Delay msec Boot Up NumLock StatusTypematic Rate Setting Apic ModeAdvanced Chipset Features MPS Version Control For OSCAS Latency Time Dram RAS# to CAS# DelayDram Timing Selectable Video Bios Cacheable Precharge Delay t RASSystem Bios Cacheable Dram RAS# PrechargePEG / Onchip VGA Control Dvmt ModeBoot Display On-Chip Frame Buffer SizeIntegrated Peripherals Init Display FirstSata Mode IDE HDD Block ModeIDE DMA Transfer Access On-Chip Primary / Secondary IDE DeviceSata Port Pata IDE ModeOn-Chip Serial ATA USB Controller11 AC97 Audio USB 2.0 ControllerUSB Keyboard / Mouse Support Onboard LAN1 Control20 UR2 Duplex Mode Uart Mode SelectIR Transmission Delay Use IR PinsPower Management Setup 10 Power management setup screen aAcpi Function Power ManagementPCI Express PM Function Video Off MethodPowerOn by LAN Suspend ModeHDD Power Down PowerOn by ModemPCI Pirq A-D# Pwron After PWR-FailResources Controlled By PnP/PCI ConfigurationsReset Configuration Data PCI / VGA Palette SnoopPC Health Status Frequency / Voltage Control Spread SpectrumExit Without Saving Password SettingSave & Exit Setup Chipset Installation Before you begin Windows XP Driver Setup Page Page VGA Setup Introduction Page Page Video capture installation Video capture installation Page System will show the un-known devices like below window Click the below icon to specify the driver location Page Page Page Page Installation of DVMB-554E Demo Program Page Page Beginning the installation Demo Program Functionality DeviceSwitch Channels Resolution Frame Rate Video Mux Video Standard Snap Buffer Sensor Control Micro Control Gpio control