Supermicro X7DWE, User Manual

Page: 52 / 91

3-2
X7DWE User's Manual
No Video
If the power is on but you have no video, remove all the add-on cards and 1.
cables.
Use the speaker to determine if any beep codes exist. Refer to the Appendix 2.
for details on beep codes.
Losing the System’s Setup Confi guration
Make sure that you are using a high quality power supply. A poor quality 1.
power supply may cause the system to lose the CMOS setup information.
Refer to Section 1-6 for details on recommended power supplies.
The battery on your motherboard may be old. Check to verify that it still sup- 2.
plies ~3VDC. If it does not, replace it with a new one.
If the above steps do not fi x the Setup Con fi guration problem, contact your 3.
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 that the DIMM modules are properly and fully installed. 1.
Check if different speeds of DIMMs have been installed and check if the BIOS 2.
setup is con fi 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 DDR2 FBD (Fully Buffered) ECC 3.
800/667/533 SDRAM (recommended by the manufacturer.)
Check for bad DIMM modules or slots by swapping a single module between 4.
all memory slots and check the results.
Make sure that all memory modules are fully seated in their slots. 5. As an in-
terleaved memory scheme is used, you must install pair(s) modules at a time,
beginning with Bank 1, then Bank 2, and so on (see Page 2-6).