Hypertherm SuperMicro 370SBA 533Mhz - Manual (Page 46)

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SUPER 370SBA/370SBM/370SLA/370SLM User's Manual
3-3 Frequently Asked Questions
Question: What are the differences between the various memories that
the 370SBA/370SBM/370SLA/370SLM motherboard can support?
Answer: The 370SBA/370SBM integrates a main memory DRAM controller that
supports 64-bit or 72-bit (64 bits of memory data plus 8 ECC bits) DRAM from
8 MB to 512 MB for SDRAM and from 8 MB to 768 MB for EDO or registered
DIMMs. The DRAM types supported are either Extended Data Out (EDO),
Synchronous DRAM (SDRAM) or registered DIMM modules.
Note: EDO DIMMs are not recommended for running 100 MHz bus speed.
1. Mixing ECC and non-ECC will result in non-ECC operation. EC/ECC is
supported properly in the 440BX, only if all the memory is 72 bits wide.
A system with a mixture of 64 and 72-bit wide memory will disable the
ECC mode.
2. EDO memory and SDRAM cannot be mixed.
3. Registered SDRAM and unbuffered SDRAM cannot be mixed.
4. Mixing PC/100 DIMM and PC/66 DIMM will result in an unexpected
memory count or system errors.
5. User should populate the DIMMs starting with the DIMM socket located
the furthest from the BX chip.
6. 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: It is recommended that you do not upgrade your BIOS if you are
experiencing no problems with your system. BIOS file updates 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 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 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 is important to save your
current BIOS and rename it "super.rom" in case you need to recover from a failed
BIOS update. Select flash boot block, then enter the update BIOS image. Select