3-3

Chapter 3: Troubleshooting
Note: Not all BIOS can be ashed. Some cannot be ashed; it depends
on the modications to the boot block code.
3. If you've followed the instructions above to troubleshoot your system, and
still cannot resolve the pr oblem, then contact Supermicro's techni cal support and
provide them with the following information:
Motherboard model and PCB revision number•
BIOS release date/version (this can be seen on the initial display when your •
system rst boots up)
System conguration (OS version, peripheral devices, power supply type, etc)•
An example of a Technical Support for m is on our website at (http://www.
supermicro.com/support/contact.cfm).
4. Distributors: For immediate assistance, please have your account number ready
when placing a call to our technical support department. We can be reached
by e-mail at suppo rt@supermicro.co m, by phone at: (40 8) 503-800 0, option
2, or by fax at (408)503-8019.
3-3 Frequently Asked Questions
Question: What type of memory does my motherboard support?
Answer:
The X7SPA-L, X7SPA-H, X7SPA-H F, X7SPE-H, X7SPE-HF supports up to
4GB of unbuffered Non-ECC DDR2 667/800 MHz, two-way interleaved or
non-interleaved SO DIMM SDR AM. See Section 2-4 for details on installing
memory.
The X7SPE-H-D525, X7SPA-HF-D525, X7SPA-H-D525 and X7SPE-HF-D525
supports up to 4G B of unbuffered Non-ECC DDR3 800MHz, two-way inter-
leaved or non-interle aved SO DIMM SDR AM
Question: Why does Microsoft Windows XP (SP2) and Windows Vista show
less memory than what is physically installed?
Answer: Microsoft implemented a design change in Windows XP with Service
Pack 2 (SP2) and Windows Vista. This change is specic to the Physical Ad-
dress Extension (PAE) mode behavior which improves driver compatibility. For
more information, please read the following article at Microsoft’s Knowledge
Base website at: http://support.microsoft.com/kb/888137.