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ONBOARD
Frequently Asked Questions
Q: Why don’t I get a display after I put in my old DIMM module?
A: The 440EX chipset requires the memory manufacturer to program
an EEPROM chip with SPD (Serial Presence Detection) on the
module in order for the BIOS to program the 440EX’s timing registers
properly. Your DIMM may not have the EEPROM chip on the module,
or the EEPROM may not contain the correct program. Check with
your memory vendor for details. The figure below shows a DIMM
module with an EEPROM chip.
Q: My system sometimes becomes unstable. How should I check the
system?
A: The first thing to do is to check and see if you have any device
conflict in address, IRQ, or DMA. If you are using Windows 95, the
Device Manager is a good place to start. Please consult your operating
system manual for details. Second of all, slowing down the memory
timing in the BIOS’s chipset setup section will help the situation, as
well. Many memory modules are not suitable for high performance
systems and are probably the main source of your problem.
Q: Can I mix EDO and SDRAM DIMMs on this motherboard?
A: Yes. However, the AGP graphics card will perform better if only
SDRAM is installed on the motherboard because the AGP card can
store the texture map in the system memory, and SDRAM is better
suited for this than EDO.
RFU
Buffered
Unbuffered
168-pin DIMM
EEPROM
