Apollo IV Pentium PCI ISA MotherboardGuide MAN-772 11/21/97
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Preface To the OEM Thank you for purchasing the high performance American Megatrends Apollo IV PCI Pentium ISA motherboard. This product is a state of the art motherboard that includes the famous AMIBIOS. It is assumed that you have also licensed the rights to use the American Megatrends documentation for the American Megatrends Apollo IV motherboard This manual was written for the OEM to assist in the proper installation and operation of this motherboard.
Packing List You should have received the following: • • • • • • • • an Apollo IV Pentium PCI ISA motherboard, a diskette containing the DMI Wizard 95 utility, the American Megatrends DMI Wizard 95 User’s Guide, an optional USB cable and mounting bracket, two serial cables, one parallel cable, a Warranty Card, and the American Megatrends Apollo IV Pentium ISA Motherboard User's Guide.
1 Hardware Installation Overview The American Megatrends Apollo IV PCI Pentium ISA motherboard includes the following features. CPU The CPU socket on the motherboard is a 321-pin ZIF socket. A switching voltage regulator is required.
Overview, Continued Chipset The Apollo IV PCI Pentium ISA baby-AT size motherboard uses an Intel 430TX chipset, including CPU interface controller, advanced cache controller, integrated DRAM controller, synchronous ISA bus controller, PCI local bus interface, and an integrated power management unit. The Intel 430TX chipset supports intelligent diagnostic and power management through features such as DMI support.
Overview, Continued CPU Thermal Monitor The Apollo IV motherboard includes a special heat sensor under the CPU that monitors the CPU temperature. This heat sensor generates an SMI (System Management Interrupt) when the CPU temperature is too hot. The SMI can be set to turn on the external cooling fan and/or lower the CPU clock frequency. You are waned that the CPU is overheating. The CPU is returned to normal operating conditions when the CPU temperature returns to normal.
Overview, Continued PC 97 Compliant The Apollo IV motherboard is fully compliant with the Microsoft PC 97 specification at both the hardware and the BIOS levels. PC 97 is a set of hardware, bus, and device design requirements specified by Microsoft that make computers easier to use. PC 97 supports cooperation between the operating system, the hardware, and the applications software.
Overview, Continued BIOS Shadowing The system BIOS is always copied from ROM to RAM for faster execution. The end user can shadow 16 KB ROM segments from C0000h – DCFFFh. IDE The Apollo IV motherboard has two 40-pin IDE connectors onboard that support up to four IDE drives (hard disk drives, CD-ROM drives, or tape drives). The integrated PCI bus master enhanced IDE controller is on the PCI local bus.
Overview, Continued Mouse The Apollo IV motherboard includes a 5-pin berg mouse connector. USB The Apollo IV motherboard has two 4-pin USB connectors. USB allows future generations of USB-compliant peripheral devices to be automatically detected and configured through a single port. USB uses Plug and Play technology. All USB peripherals are automatically detected and configured. The AMIBIOS on this motherboard provides complete USB system BIOS support.
Overview, Continued DMI In a corporate environment, system manageability is an important consideration. DMI (Desktop Management Interface) is a specification for a standard method of storing and reporting system information. This motherboard supports the DMI specification on the system BIOS level. DMI detects and records system configuration information, including the CPU type and speed, memory size and type, and much more information.
Apollo IV Dimensions Motherboard Size The Apollo IV Pentium PCI ISA motherboard is the standard baby AT size (11” by 8.6”).
Installation Steps Step 1 2 3 4 5 6 7 8 9 10 Action Unpack the motherboard. Set Jumpers Configure the CPU. Select the CPU voltage. Select the CPU speed. Install the CPU. Install memory. Install system memory. Install the motherboard. Attach cables to connectors. Connect the power supply. Attach the keyboard cable. Connect the mouse cable. Attach cables. Connect onboard I/O. Connect the serial ports. Connect the parallel port. Connect floppy drive(s). Connect the IDE drive(s). Test and configure.
Apollo IV Motherboard Layout Speaker PWR LED 10 IDE LED Kbd Lock Remote Power Switch Turbo Susp. LED Mode Switch Apollo IV PCI Pentium ISA Motherboard User’s Guide Reset Susp.
Step 1 Unpack the Motherboard Step Action 1 Inspect the cardboard carton for obvious damage. If damaged, call 770246-8645. Leave the motherboard in its original packing. Perform all unpacking and installation procedures on a ground-connected anti-static mat. Wear an anti-static wristband grounded at the same point as the anti-static mat. Or use a sheet of conductive aluminum foil grounded through a 1 megohm resistor instead of the anti-static mat.
Step 2 Set Jumpers Set all jumpers and install the CPU before placing the motherboard in the chassis. Set jumpers by placing a shunt (shorting bridge) on the designated pins of the jumper. A shunt and jumpers are shown below: 3-dimensional view of motherboard jumpers and a shunt.
Step 2 Set Jumpers, Continued EP1, EP2 Flash ROM Type EP1 and EP2 are 3-pin bergs that specify the type of flash ROM installed on the motherboard.
Step 3 Configure CPU Important Perform the following steps to configure the motherboard before installing a CPU. External CPU Clock CLK1, CLK2, and CLK3 are 3-pin bergs that set the CPU external clock frequency. This motherboard may have any of four different clock generators: • IMI652, • ICS 9147, • ICW, or • PhaseLink. The CLK1, CLK2, and CLK3 settings are different with the different clock generators. You must determine the clock generator type (it’s next to the CPU) before setting these jumpers.
Step 3 Configure CPU, Continued ICS 9147 Clock Generator The following CLK1, CLK2, and CLK3 settings apply only if an ICS 9147 clock generator is mounted on the motherboard.
Step 3 Configure CPU, Continued Summary of Jumper Setting for Intel Pentium CPUs Multi Ext. Speed plier Speed 233 3.5x 66 200 3x 66 166 2.5x 66 200 3x 66 166 2.5x 66 150 2.5x 60 133 2x 66 120 2x 60 100 1.5x 66 90 1.
Step 3 Configure CPU, Continued Summary of Jumper Setting for AMD K5 and K6 CPUs Speed Mult Ext. plier Speed IMI 652 Clock Generator CLK1 CLK2 OCS 9147 Clock Generator CLK3 CLK1 CLK2 CLK3 FREQ1 FREQ2 FREQ3 K6-233 233 3.5x 66 200 3x 66 166 2.5x 66 200 2x 66 166 1.75x 66 150 1.75x 60 133 1.5x 66 120 1.5x 60 100 1.5x 66 90 1.
Step 3 Configure CPU, Continued VR Set Pentium CPU Voltage Install Intel Pentium CPUs that adhere to either the standard or VRE voltage specifications. VR is a 10-pin berg that sets CPU voltage. VR1 is near the top of the CPU socket.
Step 3 Configure CPU, Continued Set AMD CPU Voltage Install AMD K5 and K6 CPUs that adhere to either the standard or VRE voltage specifications. VR is a 10-pin berg that sets CPU voltage. VR1 is near the top of the CPU socket. AMD K5 CPU Markings The markings on the top of the AMD K5 CPUs are: AMD-K5 AMD-K5-PRxxxABQ where B is the voltage range identifier.
Step 3 Configure CPU, Continued Install CPU Install the CPU in the ZIF (zero insertion force) socket by performing the following steps. The CPU socket is near one edge of the motherboard. Warning Improper CPU installation can damage the CPU and the motherboard. You must follow the procedures in this section exactly as documented. Make sure you wear an antistatic wristband while installing the CPU. Follow all antistatic procedures. Step 1 Action Lift the lever on the ZIF socket.
Step 4 Install Memory System Memory The motherboard has four 72-pin SIMM – Single Inline Memory Module) sockets and two 168-pin DIMM sockets. Memory must be populated one bank at a time. Each bank has two sockets. Each bank must be populated with the same type of SIMM. If a 16 MB SIMM is installed in the first socket in Bank0, then the same type of 16 MB SIMM must be installed in the second Bank0 SIMM socket.
Step 4 Install Memory, Continued Installing SIMMs The motherboard has four x 36 SIMM sockets. These sockets can be filled with either 1 MB x 36, 4 MB x 36, 8 MB x 36, or 16 MB x 36 SIMMs. Place the motherboard on an anti-static mat. With the component side of the SIMM facing you, firmly push the SIMM into the socket at an angle, then push it up. When properly inserted, the SIMM clicks into place as the latching pins engage.
Step 5 Install the Motherboard The motherboard mounting hole pattern is the same as the mounting hole pattern on the standard baby AT motherboard. Standoffs and mounting screws are not supplied with the motherboard. The chassis manufacturer should supply these parts. Step 1 2 3 4 5 Action Place the chassis on an anti-static mat. Connect the chassis to ground to avoid static damage during installation. Connect an alligator clip with a wire lead to any unpainted part of the chassis.
Step 5 Install Motherboard, Continued 24 Apollo IV PCI Pentium ISA Motherboard User’s Guide
Step 6 Attach Cables Connectors The Apollo IV motherboard includes many connectors.
Step 6 Attach Cables, Continued Connect Power Supply The power supply should match the physical configuration of the chassis. Make sure that the power switch is Off before assembly. Before attaching all components, make sure that the proper voltage has been selected. Power supplies often can run on a wide range of voltages and must be set (usually via a switch) to the proper range. Use at least a 300 watt power supply, which should have built-in filters to suppress radiated emissions.
Step 6 Attach Cables, Continued Connector Keys The keys on the connector must be cut to fit on some power supplies, as shown below.
Step 6 Attach Cables, Continued Mouse Cable Attach the mouse connector cable supplied by American Megatrends to the five-pin mouse berg connector on the motherboard (labeled MS_CON), as shown below. Attach the standard 9-pin mouse connector at the other end of the mouse cable to the mouse connector port on the computer case. Incorrect mouse installation can cause the system to hang. 5-pin to 9-pin converter cable Mount this connector on the computer case. Attach 5-pin connector to 5-pin mouse berg.
Step 6 Attach Cables, Continued When connecting chassis connectors to the motherboard, make sure to connect the correct connector end. Most connector wires are color-coded. Match the color of the wires leaving the switch or LED to the same pin on the connector end. There may be more than one connector with the same colorcoded wires. If so, follow the wire to the switch or LED. Pin 1 is always indicated on the motherboard. CPU Fan A three-pin berg labeled FAN attaches to the CPU fan.
Step 6 Attach Cables, Continued Block Connector The Apollo IV motherboard has a 22-pin header that is used to connect the following offboard connectors. The header is on the corner of the motherboard near the CPU socket. Pins 12 13 14 15 16 17 Pins 1 2 3 4 5 6 7 18 19 20 21 89 10 11 Connector Speaker IDE LED Remote Power Switch (Power when low).
Step 7 Connect Onboard I/O Onboard I/O The Apollo IV motherboard has: • • • two serial ports (COM1 and COM2), a parallel port (LPT), an IDE controller on the PCI bus. The primary IDE connector is IDE1. The secondary connector is IDE2. a floppy controller (FDD). • The serial and parallel port connectors are described below. Conflicts AMIBIOS minimizes conflicts between onboard and offboard I/O devices.
Step 7 Connect Onboard I/O, Continued Parallel Port 32 PRINTER is a 26-pin connector for a parallel port. The LPT pinout is shown below. Connect the 26-pin to DB25 cable provided with the motherboard to PRINTER. All parallel port settings can be configured through Peripheral Setup in WINBIOS Setup.
Step 8 Attach Floppy Drive FLOPPY FLOPPY is a 34-pin dual-inline berg. Connect the cable from the floppy drive to FLOPPY, as shown below. The onboard floppy controller cannot be used if a hard disk card with a floppy controller is installed. Choose Standard Setup and Peripheral Setup to configure the floppy controller. The motherboard supports up to two 720 KB, 1.44 MB, or 2.88 MB 3½" drives and 360 KB and 1.2 MB 5¼" drives.
Step 8 Attach Floppy Drive, Continued Floppy Connector Pinout Pin Use Pin Use 1 GND 2 DENSE1 3 5 GND GND 4 6 N/C DRATE0 7 9 11 GND GND GND 8 10 12 -INDEX -MOTOR0 -FDSEL1 13 15 GND GND 14 16 -FDSEL0 -MOTOR1 17 GND 18 DIR 19 21 GND GND 20 22 -WDATA 23 GND 24 -WGATE 25 27 GND GND 26 28 -TRK0 -WRPROT 29 31 33 GND GND GND 30 32 34 -RDATA HDSEL DSKCHNG Twist in Floppy Cable 34 Floppy B to A Floppy B to A Floppy B to A Floppy B to A 10 to 16 12 to 14 14 to 12 16 to
Step 9 Attach IDE Drive IDE Drives Attach the IDE drives in the following manner. Choose Peripheral Setup in WINBIOS Setup to enable the onboard IDE controller.
Step 9 Attach IDE Drive, Continued Attach IDE Cable The primary IDE (Integrated Drive Electronics) hard disk drive connector is marked PRIMARY. Both the primary master and the primary slave IDE drives must be connected by cable to PRIMARY, as shown below. PRIMARY is a 40-pin dual-inline berg that connects an IDE drive to the primary onboard IDE connector.
Step 9 Attach IDE Drive, Continued PRIMARY Pinout The PRIMARY IDE pinout is: Pin 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 Use -RESET DATA7 DATA6 DATA5 DATA4 DATA3 DATA2 DATA1 DATA0 GND N/C -IOW -IOR IDERDY N/C INT14 HA1 HA0 -CS0 -IDEACT Pin 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Use GND DATA8 DATA9 DATA10 DATA11 DATA12 DATA13 DATA14 DATA15 KEY (N/C) GND GND GND ALE GND -IOCS16 N/C HA2 -CS1 GND Secondary IDE Controller The secondary IDE connector is labeled SECONDARY.
Step 9 Attach IDE Drive, Continued SECONDARY IDE Pinout The SECONDARY pinout is: Pin 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 38 Use -RESET DATA7 DATA6 DATA5 DATA4 DATA3 DATA2 DATA1 DATA0 GND N/C -IOW -IOR IDERDY N/C INT15 HA1 HA0 -CS2 N/C Apollo IV PCI Pentium ISA Motherboard User’s Guide Pin 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Use GND DATA8 DATA9 DATA10 DATA11 DATA12 DATA13 DATA14 DATA15 KEY (N/C) GND GND GND ALE GND -IOCS16 N/C HA2 -CS3 GND
Step 10 Test and Configure Review the following points before powering up: • • • • • • make sure that all adapter cards are seated properly, make sure all connectors are properly installed, make sure the CPU is seated properly, make sure there are no screws or other foreign material on the motherboard, plug the system into a surge-protected power strip, and make sure blank back panels are installed on the back of the chassis to minimize RF emissions.
2 WINBIOS® Setup In ISA and EISA computers, the system parameters (such as amount of memory, type of disk drives and video displays, and many other elements) are stored in CMOS RAM. Unlike the DRAM (dynamic random access memory) that is used for standard system memory, CMOS RAM requires very little power. When the computer is turned off, a back-up battery provides power to CMOS RAM, which retains the system parameters.
Using a Mouse with WINBIOS Setup WINBIOS Setup has a built-in mouse driver and can be accessed by either a serial mouse or PS/2-style mouse. WINBIOS Setup supports MicrosoftCompatible serial mice and all PS/2-type mice. The mouse click functions are: single click to change or select both global and current fields and double click to perform an operation in the selected field.
WINBIOS Setup Menu The WINBIOS Setup main menu is organized into four sections. Each of these sections corresponds to a section in this chapter. Each section contains several icons. Clicking on each icon activates a specific AMIBIOS function. The WINBIOS Setup main windows and related functions are described on the next screen.
Section 1 Setup Standard Setup Standard Setup options are displayed by choosing the Standard icon from the WINBIOS Setup main menu. All Standard Setup options are described in this section. Date/Time Select the Standard option. Select the Date and Time icon. The current values for each category are displayed. Enter new values through the keyboard. Floppy Drive A: and B: Move the cursor to these fields via ↑ and ↓ and select the floppy type. The settings are 360 KB 5¼ inch, 1.
Standard Setup, Continued Entering Drive Parameters You can also enter the hard disk drive parameters. The drive parameters are: Parameter Type Cylinders Heads Write Precompensation Landing Zone Sectors Capacity Description The number for a drive with certain identification parameters. The number of cylinders in the disk drive. The number of heads. The actual physical size of a sector gets progressively smaller as the track diameter diminishes. Yet each sector must still hold 512 bytes.
Standard Setup, Continued Hard Disk Drive Types Type Cylinders Heads Write Precompensation Landing Zone Sectors Capacity 1 306 4 128 305 17 10 MB 2 615 4 300 615 17 20 MB 3 615 6 300 615 17 31 MB 4 940 8 512 940 17 62 MB 5 940 6 512 940 17 47 MB 6 615 4 65535 615 17 20 MB 7 462 8 256 511 17 31 MB 8 733 5 65535 733 17 30 MB 9 900 15 65535 901 17 112 MB 10 820 3 65535 820 17 20 MB 11 855 5 65535 855 17 35 MB 12 855 7 65535
Advanced Setup Advanced Setup options are displayed by choosing the Advanced icon from the WINBIOS Setup main menu. All Advanced Setup options are described in this section. System Keyboard This option does not specify if a keyboard is attached to the computer. Rather, it specifies if error messages are displayed if a keyboard is not attached. This option permits you to configure workstations with no keyboards. The settings are Absent or Present. The Optimal and Fail-Safe default settings are Present.
Advanced Setup, Continued Display Add-On ROM Messages Set this option to Yes to display any additional screen messages from an option ROM. This option can only be selected if the Display BIOS POST Message option is set to No. The settings are: Setting Yes No Description Display messages from an option ROM. Do not display messages from an option ROM. The Optimal and Fail-Safe default settings are No. Pause on Config.
Advanced Setup, Continued Floppy Drive Swap Set this option to Enabled to permit drives A: and B: to be swapped. The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are Disabled. Floppy Access Control This option specifies the read/write access that is set when booting from a floppy drive. The settings are Read/Write or Read-Only. The Optimal and Fail-Safe default settings are Read/Write.
Advanced Setup, Continued 1st Boot Device This option sets the type of device for the first boot drives that the AMIBIOS attempts to boot from after AMIBIOS POST completes. The settings are Disabled, Network, Floppy, ARMD-FDD, ARMD-HDD, ATAPI, SCSI, CDROM, 1st IDE-HDD, 2nd IDE-HDD, 3rd IDE HDD, or 4th IDE-HDD. The Optimal and Fail-Safe default settings are Disabled.
Advanced Setup, Continued External Cache Set this option to Enabled to enable L2 secondary (external) cache memory. The settings are Enabled or Disabled. The Optimal default setting is Enabled. The Fail-Safe default setting is Disabled. Caching Controller Set this option to Yes if a cache controller is installed in the computer. Setting Absent (the default setting) Present Description To comply with the PCI specifications, PCI adapter cards must be reset every time the CPU is reset.
Chipset Setup The AMIBIOS Setup options described in this section are selected by choosing the Chipset Setup icon from the Setup section on the WINBIOS Setup main menu. USB Function Set this option to Enabled to enable the system BIOS USB (Universal Serial Bus) functions. The settings are Enabled or Disabled. The Optimal and FailSafe default settings are Enabled. USB Keyboard/Mouse Legacy Support Set this option to Enabled to enable USB support for legacy keyboards and mice.
Power Management Setup The AMIBIOS Setup options described in this section are selected by choosing the Power Management Setup icon from the Setup section on the AMIBIOS Setup main menu. Power Management/APM Set this option to Enabled to enable the Intel Triton 2 power management features and APM (Advanced Power Management). The settings are Enabled, Inst-On (instant-on), or Disabled. The Optimal and Fail-Safe default settings are Disabled.
Power Management Setup, Continued Slow Clock Ratio This option specifies the speed at which the system clock runs in power saving states. The settings are expressed as a ratio between the normal CPU clock speed and the CPU clock speed when the computer is in the powerconserving state. The settings are 0-12.5%, 12.5-25%, 25-37.5%, 37.5-50%, 50-62.5%, 62.5-75%, or 75-87.5%. The Optimal and Fail-Safe defaults are 1:8.
PCI/PnP Setup Choose the PCI/PnP Setup icon from the WINBIOS Setup screen to display the PCI and Plug and Play Setup options, described below. Plug and Play-Aware OS Set this option to Yes if the operating system in this computer is aware of and follows the Plug and Play specification. Windows 95 is PnPaware. The settings are Yes or No. The Optimal and Fail-Safe default settings are No.
PCI/PnP Setup, Continued IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ14 IRQ15 These options specify the bus that the specified IRQ line is used on. These options allow you to reserve IRQs for legacy ISA adapter cards. These options determine if AMIBIOS should remove an IRQ from the pool of available IRQs passed to devices that are configurable by the system BIOS. The available IRQ pool is determined by reading the ESCD NVRAM.
Peripheral Setup Choose the Peripheral Setup icon from the WINBIOS Setup screen to display the Peripheral Setup options, described below. Onboard Floppy Controller Set this option to Enabled to enable the floppy drive controller on the motherboard. The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are Enabled. Onboard Primary/Secondary IDE This option specifies the IDE channels on the onboard IDE controller that will be used.
Peripheral Setup, Continued Onboard Serial Port1 Address This option specifies the base I/O port address of serial port 1. The settings are Auto (AMIBIOS automatically determines the correct base I/O port address), Disabled, 3F8h, or 3E8h. The Optimal default setting is 3F8h. The Fail-Safe default setting is Disabled. Onboard Serial Port1 FIFO Set this option to Enabled to enable the serial port1 FIFO buffer. The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are Disabled.
Peripheral Setup, Continued Onboard Parallel Port Address This option specifies the base I/O port address of the parallel port on the motherboard. The settings are Disabled, 378h, or 278h. The Optimal default setting is 378h. The Fail-Safe default setting is Disabled. Onboard Parallel Port Mode This option specifies the parallel port mode. The Optimal default setting is Normal. The Fail-Safe default setting is Disabled.
Section 2 Security Three icons appear in this part of the WINBIOS Setup screen: • • • Supervisor (Password), User (Password), and Anti-Virus. Two Levels of Passwords Both the Supervisor and the User icons configure password support. If you use both, the Supervisor password must be set first. The system can be configured so that all users must enter a password every time the system boots or when WINBIOS Setup is executed, using either or both the Supervisor password or User password.
Setting a Password The password check option is enabled in Advanced Setup (see the Advanced Setup section ) by choosing either Always (the password prompt appears every time the system is powered on) or Setup (the password prompt appears only when WINBIOS is run). The password is encrypted and stored in NVRAM. As shown on the above screen, you are prompted for a 1 – 6 character password. You can either type the password on the keyboard or select each letter of the password, one at a time, using the mouse.
Anti-Virus When this icon is selected from the Security section of the WINBIOS Setup main menu, AMIBIOS issues a warning when any program (or virus) issues a Disk Format command or attempts to write to the boot sector of the hard disk drive. The settings are Enabled or Disabled. If enabled, the following appears when a write is attempted to the boot sector. You may have to type N several times to prevent the boot sector write.
Section 3 Utility The following icons appear in this section of the WINBIOS Setup main screen: Detect IDE Choose this option to let AMIBIOS automatically detect and configure the parameters for an IDE hard disk drive. Language If this feature is enabled, you can select WINBIOS Setup messages in different languages.
Section 4 Default The icons in this section permit you to select a group of settings for all WINBIOS Setup options. Not only can you use these icons to quickly set system configuration parameters, you can choose a group of settings that have a better chance of working when the system is having configuration-related problems. Original Choose the Original icon to return to the system configuration values present in WINBIOS Setup when you first began this WINBIOS Setup session.
3 Programming the Flash ROM All versions of the Apollo IV motherboard use Flash EPROM to store the system BIOS. The advantage of Flash EPROM is the EPROM chip does not have to be replaced to update the BIOS. The end user can actually reprogram the BIOS, using a ROM file supplied by American Megatrends. Programming the Flash EPROM Step 1 2 3 4 Action Turn power off. Make sure the computer has a working speaker. Insert the floppy disk with the S772P.ROM file in drive A:.
Programming the Flash ROM, Continued S772P.ROM S772P.ROM resides on a floppy disk and contains the updated main BIOS code. American Megatrends will provide this file when the AMIBIOS for the Apollo IV ISA motherboard must be updated. S772P.ROM must be present in the root directory of the floppy disk before the onboard Flash EPROM can be reprogrammed. The file that has the main BIOS code must be named S772P.ROM.
Programming the Flash ROM, Continued Beep Codes The bootblock code produces a series of beeps during Flash ROM programming to: • signify completion of a step (as shown on the previous screen), or to • signal an error. Error beeps are arranged in a coded sequence and have different meanings depending on when they occur. The error beep codes and when they can occur are: Number of Beeps 1 2 3 4 5 6 7 8 9 10 11 12 Continuous beep Chapter 2 WINBIOS Setup Description Insert diskette in floppy drive A:.
Bootblock Code Checkpoint Codes Code E0h E1h E2h E3h E4h E5h E6h E7h E8h E9h EAh EDh EEh EFh F0h F1h F2h F3h F4h F5h FBh FCh FDh FEh FFh 68 Description Verify the bootblock BIOS checksum. Disable the internal cache, DMA, and interrupt controllers. Initialize the system timer. Start memory refresh. Initialize the chipset registers. Set the BIOS size to 128K. Make the 512 KB base memory available. Test the base 64 KB of system memory. Send the BAT command to the keyboard controller.
