Datasheet
3-2
 X7DCL-3/X7DCL-i User's Manual
supplies ~3VDC. If it does not, replace it with a new one.
If the above steps do not fi x the Setup Confi guration problem, contact your 
vendor for repairs.
NOTE
If you are a system integrator, VAR or OEM, a POST diagnostics 
card is recommended. For I/O port 80h codes, refer to App. B.
Memory Errors 
Make sure the DIMM modules are properly and fully installed. Check if 
DIMMs of different speeds or types have been installed. Also make sure that 
the BIOS setup is confi gured for the fastest speed of RAM used.
It is recommended to use the same RAM speed for all DIMMs in the system. 
Make sure you are using the correct type of Single-Rank, Registered ECC 
DDR2 667/533 SDRAM (recommended by the manufacturer.) 
Check for bad DIMM modules or slots by swapping a single module between 
four slots and noting the results. Make sure all memory modules are fully 
seated in their slots. As an interleaved memory scheme is used, you must 
install two modules at a time, beginning with DIMM 1A, then DIMM 2A, and 
so on (see Section 2-3). Check the position of the 115V/230V switch on the 
power supply.
3-2 Technical Support Procedures
Before contacting Technical Support, please take the following steps. Also, note 
that as a motherboard manufacturer, Super Micro does not sell directly to end-us-
ers, so it is best to fi rst check with your distributor or reseller for troubleshooting 
services. They should know of any possible problem(s) with the specifi c system 
confi guration that was sold to you.
Please go through the ‘Troubleshooting Procedures’ and 'Frequently Asked 
Question' (FAQ) sections in this chapter or see the FAQs on our web site (http://
www.supermicro.com/support/faqs/) before contacting Technical Support. 
BIOS upgrades can be downloaded from our web site at http://www.supermicro.
com/support/bios/. 
If you still cannot resolve the problem, include the following information when 
contacting Super Micro for technical support:
Motherboard model and PCB revision number
BIOS release date/version (this can be seen on the initial display when your   
system fi rst boots up)
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