Losing The System's Setup Confi Guration; Memory Errors; Technical Support Procedures - Supermicro X7DA3 Plus User Manual

X7DA3+ User's Manual
Losing the System's Setup Confi guration
1. Make sure that you are using a high quality power supply. A poor quality power
supply may cause the system to lose the CMOS setup information. Refer to
Section 1-6 for details on recommended power supplies.
2. The battery on your motherboard may be old. Check to make sure that it still
supplies ~3VDC. If it does not, replace it with a new one.
3. If the above steps do not fi x the Setup Confi guration problem, contact your
vendor for repairs.
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

1. Make sure that the DIMM modules are properly and fully installed.
2. Check if different speeds of DIMMs have been installed and 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.
3. Make sure you are using the correct type of DDR2 FBD (Fully Buffered) ECC
533/667 SDRAM (recommended by the manufacturer.)
4. Check for bad DIMM modules or slots by swapping a single module between
four slots and noting the results.
5. Make sure that all memory modules are fully seated in their slots. As an inter-
leaved memory scheme is used, you must install pair(s) of modules at a time,
beginning with Branch 1, then Branch 2, and so on (see Page 2-6).
6. Check the position of the 115V/230V switch on the power supply.
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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.
1. Please go through the 'Troubleshooting Procedures' and 'Frequently Asked Ques-
tion' (FAQ) sections in this chapter or see the FAQs on our web site http://www.
supermicro.com/support/faqs/ before contacting Technical Support.
2. BIOS upgrades can be downloaded from our web site at http://www.supermicro.
com/support/bios/.
NOTE
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