Supero SUPER P6DGE, Руководство пользователя и BIOS

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3-4
SUPER P6DGS/P6DGE/P6DGU/P6SGU
Manual
3-3 Frequently Asked Questions
Question: What are the differences between the various memo-
ries that the 440GX motherboard can support?
Answer: The 440GX integrates a main memory DRAM controller that
supports a 64-bit or 72-bit (64 bit memory data plus 8 ECC bits.) DRAM from
8 MB to 512 MB for SDRAM and from 8 MB to 2 GB SDRAM/registered DIMM.
DRAM types supported are either Synchronous DRAM (SDRAM) or Regis-
tered DIM modules.
1. Mixing ECC and non-ECC will result in non-ECC operation.
EC/ECC is supported properly in the 440GX, only if all the memory are 72
bit 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 the DIMM starting with the DIMM socket located
the furthest from the GX chip (U2 on P6DGS/P6DGE or U4 on P6DGU/
P6SGU).
5. If EDO memory is used, the CPU bus should be set at 66 MHz Bus
speed only.
Question: How do I update my BIOS?
Answer: Update BIOS files are located on our web site at http://
www.supermicro.com. Please check the current BIOS revision and make
sure it is newer than your BIOS before downloading. Select your
motherboard model and download the BIOS file to your computer. Unzip the
BIOS update file and you will find three files: readme.txt (flash instructions),
sm2flash.com (BIOS flash utility), and the BIOS image file (xxxxxx.rom).
Copy these files onto a bootable floppy and reboot your system. It is not
necessary to set BIOS boot block protection jumpers on the motherboard.
At the DOS prompt, enter the command "sm2flash." This will start the flash
utility and give you an opportunity to save your current BIOS image. Flash
the boot block and enter the name of the update BIOS image file. NOTE: It