User`s manual
3-4
X8SAX/C7X58 User's Manual
Question: When I plug in my 1600 MHz XMP DDR3 memory into the X8SAX
or C7X58 motherboard, it only shows that it's running at 1333MHz or 1066
MHz. How can I make it work at 1600MHz?
Answer: The X8SAX motherboard does not support 1600MHz XMP memory.
Therefore, it will only support up to 1066/1333MHz.
On the C7X58 motherboard, please enable 1600MHz XMP mode in the
BIOS:
Enter BIOS setup, go to Advanced -> Advanced Chipset Control -> QPI & IMC
Conguration -> Performance Tuning Mode, then select “XMP” = 1600MHz
Note: If the C7X58 motherboard detects that the memory installed is not suited
for 1600MHz XMP operation, the BIOS activates a protection routine to lower
its clock speed to 1066MHz or 1333MHz automatically. This is done to protect
the system so it can still boot using the proper clock speed.
Question: How do I update my BIOS?
Answer: It is recommended that you do not upgrade your BIOS if you are not
experiencing any problems with your system. Updated BIOS les are located
on our web site at http://www.supermicro.com/support/bios/. Please check our
BIOS warning message and the information on how to update your BIOS on our
web site. Select your motherboard model and download the BIOS (.rom) le to
your computer. Also, check the current BIOS revision and make sure that it is
newer than your BIOS before downloading. You may choose the zip le or the
.exe le. If you choose the zipped BIOS le, please unzip the BIOS le onto a
bootable device or a USB pen/thumb drive. To ash the BIOS, run the batch
le named "ami.bat" with the new BIOS ROM le from your bootable device or
USB pen/thumb drive. Use the following format:
F:\> ami.bat BIOS-ROM-lename.xxx <Enter>
Notes: Always use the le named “ami.bat” to update the BIOS and insert a
space between "ami.bat" and the lename. The BIOS-ROM-lename will bear
the motherboard name (i.e., X8SAX) and build version as the extension. For
example, "X8SAX0.115".
When completed, your system will automatically reboot. If you choose the .exe
le, please run the .exe le under Windows to create the BIOS ash oppy disk.
Insert the oppy disk into the system you wish to ash the BIOS. Then, boot
the system to the oppy disk. The BIOS utility will automatically ash the BIOS
without any prompts. Please note that this process may take a few minutes to
complete. Do not be concerned if the screen is paused for a few minutes.
Warning: Do not shut down or reset the system while updating the BIOS
to prevent possible system boot failure!