Tyan Computer TYAN S1668 user manual VRM Installation, Peripheral Device Installation

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3.12 VRM Installation

The VRM is required for the Pentium Pro to work. The CPU will program the VRM for the correct voltage needed. No jumper settings are needed, just install the VRM into the VRM socket nearest the CPU that is being installed. The VRM can only fit in the socket one way so there is no danger of installing it incorrectly. Not all VRM's will work in the S1668. Make sure you purchased a qualified VRM.

wVRM socket 0 is for CPU socket 0.

wVRM socket 1 is for CPU socket 1.

3.13 Peripheral Device Installation

After all the jumpers on the mainboard have been set, then it can be mounted into the case. Then proceed to install the display card and any other peripheral devices.

If a PCI-Bus interface card is to be installed in the system, any one of the four PCI-Bus slots can support either a Master or a Slave device.

After installing the peripheral controller, the user should check everything again, and prepare to power-on the system.

3.14Connecting the Power Supply & On/Off Switch

The system power supply connectors on the mainboard is for a standard ATX power supply. It can only be plugged in one way and should install in easily.

ATX cases have an on/off switch that can be used to turn on or off the ATX powersupply without having to use the switch that is on

the back of the powersupply.Use jumper J1 is for the on/off button from the system case.

S1668-ATX-001 http://www.tyan.com

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Contents Tyan S1668 Dual Pentium Pro ATX 440FX PCI-ISA System Board Table Of Contents Introduction Hardware Specifications/Features Software Specifications EnvironmentBoard Installation On Board Resource Setting .1 S1668 ATX Board Layout VRM1Jumper Settings CPU Speed J27, J21, J22, J23, and J24 Cmos Resest/Password Reset J41Default offDram Voltage J2, J3, J14, J15, J4, J5, J16 and J17Default CPU Clock Multiplier J21, J22, J23 and J24Turbo Switch J47 Non-Turbo Mode Not Supported Speaker Connector J43 Keylock Connector J44Selection J28 & J29 Reset Connector J45 Turbo LED Connector J42Flash Eeprom J32Default InfraRed Interface Con4 and Con5Soft Power On Switch J1 CPU FAN Power J49 and J50 Speaker Connector InstallationTurbo Switch Turbo LED Connector InstallationHardware Reset Switch Connector Installation Refer to for Flash Eeprom upgrade proceduresDram Installation Voltage ID for Older Pentium Pro CPUs J10 and J20Memory Table Bank0 Bank1 Bank2 Bank3 TotalCPU Installation Peripheral Device Installation VRM InstallationConnecting the Power Supply & On/Off Switch Bios Configuration Entering SetupControl Keys Setup Page menu/Option Page Setup Menu Getting Help Main MenuStandard Cmos setup Bios features setupChipset features setup Power Management setupDate Standard Cmos Setup MenuTime Primary/Secondary Drive type Drive a type/Drive B typeHalt On VideoMemory Expanded Memory Other MemoryBoot Sequence Swap Floppy Drive Default value is DisabledVirus warning CPU Internal Cache/External CacheBoot Up Floppy Seek Boot Up NumLock Status Default value is OnChipset Features Setup Power Management ROM ISA Bios Power Management Setup Award SOFTWARE, INCStandby Mode Doze ModePower Down Activities PCI Slot Configuration Resources Controlled By IRQ n assigned toLegacy ISA PCI/ISA PnPIntegrated Peripherals Load Setup Defaults ROM ISA Bios Cmos Setup Utility Award SOFTWARE, INC IDE HDD Auto Detection Flash Writer Utility Page Flash Memory Writer Utility Screen Award Flash Memory WriterTimer & DMA Channel MAP System Resources