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SUPER S2DG2/S2DGU/S2DGE/S2DGR
Manual
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Frequently Asked Questions
Question: Do I need to change any settings to use a single processor on
a dual processor board?
Answer: There are no jumpers or BIOS settings that need to be changed when
running a single CPU on a dual processor board. Also, you can use a single
processor in either slot.
Question: What are the differences between the various memories that
the 440GX motherboard can support?
Answer: The 440GX integrates a main memory DRAM controller that supports
64-bit or 72-bit (64 bit memory data plus 8 ECC bits) DRAM for 8 MB to 512 MB
of SDRAM and 8 MB to 2 GB of SDRAM/registered DIMMs. The DRAM types
supported are either Synchronous DRAM (SDRAM) or registered DIMMs.
1. Mixing ECC and non-ECC memory will result in non-ECC operation.
EC/ECC is supported properly in the 440GX only if all memory is 72 bits
wide. A system with a mixture of 64- and 72-bit wide memory will disable
ECC mode.
2. Registered SDRAM and unbuffered SDRAM cannot be mixed.
3. Mixing PC/100 DIMM and PC/66 DIMM will result in an unexpected
memory count or system errors.
4. User should populate memory starting with the DIMM socket located
furthest from the GX chip (slot J4).
Question: How do I update my BIOS?
Answer: It is recommended that you do not upgrade your BIOS if you are
experiencing no problems with your system. Updated BIOS files are located on
our web site at http://www.supermicro.com. Please check our BIOS warning
message and the info on how to update it. Also, check the current BIOS revision
and make sure it is newer than your BIOS before downloading. Select your
motherboard model and download the proper BIOS file to your computer. Unzip
the BIOS update file and you will find the readme.txt (flash instructions), the
sm2flash.com (BIOS flash utility) and the BIOS image (xxxxxx.rom) files. Copy
these files onto a bootable floppy disk and reboot your system. It is not neces-
sary to set BIOS boot block protection jumpers on the motherboard. At the DOS
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