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DOS/V Power Report 1997 May
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s714
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s714add1.txt
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1997-02-06
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170 lines
Addendum to the American Megatrends
Atlas VIP Motherboard User's Guide
8/17/94
Please make the following corrections and additions to this manual:
Delete all references to 100 MHz. This motherboard supports the 90 MHz
Pentium CPU.
Delete all references to a built-in battery. This motherboard must use a
4.5V external battery.
Page 3 Cache Memory
Replace the sentence about Data SRAM with the following:
The Data SRAM is 3.3V 15 ns 32 KB x8 SRAMs. You must use only 3.3V SRAMs
when upgrading the L2 secondary (external) cache memory on this
motherboard.
Page 6 Interrupt Levels Delete the last sentence before the table and
replace with:
If IRQ 5, 9, 10, 11, or 15 is used by a VL-Bus or ISA bus device, set the
corresponding IRQ option in Chipset Setup to ISA. Then this IRQ will not
be allocated to any PCI device.
Page 21 J43 Set CPU Speed
Leave J43 OPEN always.
Page 22 J19 and J21
J19 and J21 must always be OPEN.
Page 22 J24 Heading
The third line contains J51. It should be J24.
Atlas VIP Motherboard Addendum, Continued
Page 27 Delete Last Sentence and Add:
PS3 is the 3.3V power connector. If a PCI adapter card that requires 3.3V
is installed, use a power supply that provides 3.3V and connect the 3.3V
power supply cable to PS3. The PS3 pinout is on page 29.
Page 33 J46
J46 can be used to attach to the turbo LED or to a power on LED. This
motherboard always operates in turbo mode.
Page 34 External Battery Connector
Delete all reference to an onboard battery. J7 must be connected to a 4.5
volt external battery.
Page 43 PCI Slot Numbers
The correct numbers are:
PCI slot IDSEL Device Number
1 19 8
2 18 7
3 17 6
Page 50 Add the following after WINBIOS Setup:
You must load the Optimal default settings the first time that you run
WINBIOS Setup.
Pages 44 and 70 NCR PCI SCSI BIOS
WINBIOS automatically detects offboard PCI devices that need the NCR SCSI
BIOS and automatically supplies the SCSI BIOS to them.
Page 68 DRAM Region A
Change all references to DRAM Region A to DRAM Region B.
Atlas VIP Motherboard Addendum, Continued
Page 70 PCI IRQ Option
Delete this option.
Page 70 PCI IDE Card Present In
This option concerns any offboard PCI IDE controller installed in the
computer. The onboard mode 3 IDE controller is on the VL-Bus. If an
offboard IDE controller on the PCI bus is installed, the onboard IDE
controller cannot be used and vice versa. This motherboard supports up to
two IDE drives.
Page 71 PCI IDE IRQ option
This option concerns any offboard PCI IDE adapter card. This option must
be set to Edge when an offboard PCI IDE controller is used.
Page 72 Onboard IDE
The settings for this option are En-Pri (enable the primary IDE drive) or
Disabled. The En-Sec option is invalid.
Pages 72-73 Serial Port FIFO
The serial port FIFO buffers cannot be configured via WINBIOS Setup.
Delete the Serial Port 1 FIFO and Serial Port 2 FIFO Peripheral Setup
options. The serial port FIFO buffers may be used, but they are strictly
under the control of any software that can use these buffers.
Page 73 IDE Block Mode
Add the following:
Do not enable the IDE Block Mode option unless you are certain that the
IDE drive installed in the computer supports IDE block mode.
Atlas VIP Motherboard Addendum, Continued
Page 73 32-Bit Transfer
This option must be set to Disabled when an offboard ISA IDE controller is
used.
Page 74 IDE LBA Mode
Add the following:
Do not enable the IDE LBA Mode option unless you are certain that the IDE
drive installed in the computer supports IDE LBA mode. A drive formatted
without LBA should not be used when LBA mode is enabled.
Page 74 IDE 0 Transfer Mode
IDE 1 Transfer Mode
The Auto setting for these two options does not work with some older IDE
drives. Some older IDE drives do not return the correct IDE mode to
WINBIOS, so you must not use the Auto setting. These older IDE drives must
be set to Mode 0.
Page 87 Airflow on the CPU
The OEM must mount this motherboard in a chassis that has a fan that blows
air over the CPU to ensure proper CPU cooling.
Proper airflow is critical for reliable operation of this motherboard.