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Thunder K7X Pro (S2469) FAQ Updated 07/08/03
- Is there TYAN System Monitor support for this system board?
Yes! Please go to the following page for more details and software download.
http://www.tyan.com/support/html/software_utilities.html
- What power supply does the S2469 Thunder K7x Pro use?
You can use ATX12V
or EPS12V power supplies. For heavy loading, you may need to run EPS12V. See illustration
.
- Is there any power supply, chassis, or cooling recommendations?
Yes! Please check here for details and listings.
- What is the pinout for the serial port (COM2)?
Please see page http://tyan.com/support/html/io_serial.html
- Why is my system unstable when I add two 64bit 66MHz cards to PCI slots 1 and 2?
This is due to the tight PCI 66MHz timing of the AMD-760 MPX chipset. It may be necessary to set the bus to 33MHz when using multiple 64bit 66MHz PCI cards. For
more information, refer to the AMD 760¥ System Controller Datasheet (PID# 24416) on the AMD website:
www.amd.com
- What is the IRQ routing for my motherboards PCI BUS?
PCI Bus 1 is made up of 2 64bit, 66MHz 3.3v PCI slots.
PCI Bus 2 is made up of 3 32bit, 33MHz 3.3v/5v PCI slots.
The Interrupt routing is:
AGP INTB/INTC
PCI bus 1 slot 1 = INT A B C D
PCI bus 1 slot 2* = INT B C A B
PCI bus 2 slot 1 = INT A B C D
PCI bus 2 slot 2 = INT B C D A
PCI bus 2 slot 3 = INT C D A B
Intel Gigabit Ethernet = PCI Bus1 INT D
Intel 10/100 Ethernet = PCI Bus 2 INTC
ATI Rage XL = PCI Bus 2 INTB
Adaptec AIC7899/AIC7902 = PCI Bus 1 INTA/INTB
*On the S2469UGN PCI bus 1 Slot 2 has SCSI Interrupt Steering Logic support. Therefore Interrupt C & D are routed to SCSI Interrupt A & B.
- Why does my system display less than 4GB in the OS even though I have installed 4 GB?
AMD chipset architecture requires memory above 3.5GB to be reserved for PCI devices. You will typically see 3.6-3.8GB available.
- How do I enable USB boot support?
You need to enable USB legacy support in the BIOS.
- Why does my system hang during POST with my Intel Pro/1000 MT Gigabit Ethernet card installed?
This issue was fixed in an Intel® Boot Agent Firmware update. You need to run Intel® Boot Agent v1.1.07 or newer. It can be
downloaded from the following link:
http://www.intel.com/design/network/drivers/sla_ibag.htm
- Why doesn't the BIOS (Option ROM) for PCI device show during boot up?
The cause of the problem is that in order to be PC Compatible, the Option Rom space is limited to 128K. This is true for any motherboard with PC compatible BIOS.
In the common configurations, a
newer AGP card (such as a Geforce 4) will require 64K of option ROM space, so you have only 64K of option ROM space left to work with. Many SCSI, NIC with PXE, IDE RAID etc. can easily use another 40-64K of
option ROM space.
By design the option ROM should shrink down to a smaller run time code after the initialization code has run. For example, some Adaptec cards will require 32K to initialize. Then they
shrink down to 12K at run time; whereas some Geforce 4 cards require 64K to initialize and never release it. Please check with the device manufacturer for the latest firmware upgrade or ask if they have a
smaller option ROM available. Again, this is a limitation of the PC compatible specifications and not a failure of the motherboard BIOS.
- Why isn't my boot drive (IDE/ATAPI CD-ROM or HDD) being detected by the BIOS, or show up in the Boot Menu?
Check the jumper on your CD-ROM (or HDD). If it is the only device on the IDE channel, it must be set to "master". If there are two devices on the IDE channel,
your boot drive must be set to "master" and the other device must be set to "slave". Check your CD-ROM or HDD documentation for details on how to do this.
- Why does the system only show 3.5 GB of memory when I have 4.0 GB of memory installed?
Under the current PC memory addressing, there is a memory area just below 4.0 GB which is reserved permanently. The reserved area is for system BIOS to put APIC,
ACPI Table, PCI Devices', Resources and AGP aperture information. When your system DRAM is 3.5 GB or lower, the system will show that the same amount of memory has been implemented. However, if the
system DRAM is above 3.5 GB of memory, the actual amount of memory that the system shows will be less due to the reserved area. Regardless of memory size, the reserved memory addressing is always present,
but only when the DRAM rises above the 3.5 GB amount will that area become visible.
- Why does my memory test program lock up when I use 4.0 GB of memory but runs fine with anything less?
The memory test utility accesses the reserved memory address area. When the program accesses this area, it causes the system to be unstable and locks up.
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