SOYO SY-7VCA2 user manual Main Memory

Page 14

Motherboard Description

SY-7VCA2

1-8 MEMORY

1-8.1 Main Memory

The motherboard has three DIMM sockets. SDRAM can be installed in one, two, or three sockets. Using the serial presence detect (SPD) data structure, programmed into an E²PROM on the DIMM, the BIOS can determine the SDRAM’s size and speed. Minimum DIMM memory size is 8 MB; maximum DIMM memory size is 256/512 MB. Memory size and speed can vary between sockets.

The motherboard supports the following memory features:

DRAM interface synchronous with host CPU (66/100/133MHz) or AGP (66MHz) for most flexible configuration

DRAM interface may be faster than CPU by 33 MHz to allow use of PC100 memory modules with 66MHz Celeron or use of PC133 with 100MHz Pentium II or Pentium III

DRAM interface may be slower than CPU by 33 MHz to allow use of older memory modules with newer CPUs (e.g., PC66 memory modules with 100MHz Pentium II or Pentium III)

Concurrent CPU, AGP, and PCI access

Supports FP,EDO, SDRAM, ESDRAM and VCM SDRAM memory types

Different DRAM types may be used in mixed combinations

Different DRAM timing for each bank

Dynamic Clock Enable (CKE) control for SDRAM power reduction in high speed system.

Mixed 1M/2M/4M/8M/16M/32MxN DRAMs

The 7VCA2 supports 3 DIMMs or 6 banks at 133MHz for 1.5GB max memory.

Flexible row and column addresses

64-bit data width only

3.3V DRAM interface with 5V-tolerant inputs

Programmable I/O drive capability for MA, command, and MD signals

10

Image 14
Contents SY-7VCA2 Version SY-7VCA2Edition January 7VCA2 SerialTable of Contents Drivers Installation CPU FSB Frequency KEY FeaturesIntroduction Enhanced IO CPU MultiplierExpansion slots Advanced Functions User Friendly Electrostatic Discharge Precautions Handling the MotherboardSY-7VCA2 Motherboard Layout SocketSY-7VCA2 Motherboard Components SY-7VCA2 Microprocessor Packaging Microprocessor UpgradesMicroprocessor Second Level CacheMemory Main MemorySY-7VCA2 Chipset VT82C694XSY-7VCA2 VT82C686B SY-7VCA2 10 I/O Interface Controller Diskette Drive Controller Serial PortsParallel Port Infrared Support Hardware Monitor10.4 PS/2 Keyboard and Mouse Interface Wake on LAN Technology Hardware Installation PreparationsUnpacking the Motherboard Begin the Installation Installation GuideFSB 100MHz CPU InstallationFSB 66MHz FSB 133MHzSY-7VCA2 CPU Fan Installation Sdram Memory Module Installation Memory Module Size 16/32/64/128/256/512 MB Number of MemoryModules RAM Type Motherboard Connector IDE Device Installation HDD, CD-ROMFloppy Drive Installation FDCPower LED Front Panel ConnectionsIDE LED ResetSpeaker ATX Power On/Off Switch STR LEDBack Panel Connections PS/2 Keyboard Onboard Serial Ports COM1/COM2Parallel Port PRT PS/2 MouseUniversal Serial Bus USB1 2 Ports/USB2 2 Ports Onboard Joystick port/audioOther Connections Wake-On-LAN WOLInfrared IR1 Other Display CardsCooling Fan Installation CPU Cooling Fan CPU Cooling Fan Cpufan Pin AssignmentChassis Cooling Fan Chafan Pin Assignment CD Line-in CDIN1,CDIN2 AGP VGA CardATX Power ATX Power SupplyAMR Audio Modem RiserConnector GND Ø Pay special care to the directionalityCmos Clearing JP5 Power OnClearing JP5 Setting CmosQuick Bios Setup Cmos Setup Utility Copyright C 1984-2000 Award SoftwareCPU Frequency MHz Video no display related issues Troubleshooting at First StartWhere can I find the Bios revision of my mainboard? Where can I find the latest Bios of my motherboard?Audio Issues Power Off Can not get my board to run properlyDebug LEDs Code ExplanationSY-7VCA2 Selecting items Modifying selected itemsFunction Command Description Save and Exit Setup Exit Without SavingSoyo Combo Setup Soyo Combo SetupSpread Spectrum Quick CPU Frequency SetupAuto Detect DIMM/PCI Clk WAY 2 C.I.H -WAY Protection Settings3 L2 Cache Memory CPU L2Quick Power On Self Test Processor Number FeatureVcore voltage Setup Boot Other Device OnChip Sound/Modem Setting Description System Boot Control SettingsSystem Boot Control Settings Date & Time Standard Cmos SetupDate Time Display Setting Please Note Hard Disks Type & Mode Floppy DrivesHalt On Setting Description VideoOthers Optional Advanced Bios Features Boot Up NumLock Status Floppy Driver SettingsBoot Up Floppy Seek Virus WarningTypematic Settings Gate A20 OptionsDRAM64MB Security OptionOther Control Options Advanced Chipset Features Chipset Features Chipset Chipset Features SetupFeatures USB Keyboard Support CPU to PCI Write Buffer PCI Dynmic BurstingPCI#2 Access #1 Retry PCI Master 0 WS Write Setting DescriptionPCI Delay Transaction AGP Master 1 WS WriteIntegrated Peripherals Keyboard Controls IDE HDD Block ModeIDE Device Controls IDEFDC Controls Onboard Serial PortsDMA Onboard Parallel PortsOnboard Legacy Audio TypeAddress Setting Description MPU-401MPU-401 I/O Game PortPower Management Setup HDD & FDDPM Control Power Management ControlsPower Setting Description Management Controls By APMVGA IRQPWR-BTTN LPT & COMIRQs Activity Resume by AlarmPrimary Intr MonitoringPNP/PCI Configuration Setup 1 PNP/PCI Configuration Controls PNP/PCIPNP/PCI Configuration Setup VGA/USBECP/EPP PC Health StatusLPT1 COM1CPU Device Monitoring Vcore, 2.5V, 3.3V, +5V, +12VLoad FAIL-SAFE Defaults Load Fail Safe Defaults Y/N? YLoad Optimized Defaults Load Optimized Defaults Y/N? YSupervisor Password Enter Password User PasswordIDE HDD Auto Detection Drivers Installation Soyo CD Start Up Program MenuSY-7VCA2 ⎯ AGP VxD Driver VIA 4in1 driver package⎯ Bus Master PCI IDE Driver VIA hardware monitor for Win 95/98 ⎯ VIA Chipset Functions RegistryVIA Ac97 Codec Driver for Win 9x/NT/2000