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Frequently Asked Questions
Q: Why don't I get a display after I put in my old DIMM module?
A: The 440BX 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 440BX'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.
EEPROM
Unbuffered
RFU
Buffered
168-pin DIMM
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 use EDO DIMMs on this motherboard?
A: No. The Intel 440BX AGPset does not support EDO memory. The
440BX AGPset supports bus speeds of 100MHz, and EDO memory
does not. You must use SDRAM (which does support 100MHz bus
speeds) on this board.
Q: What is AGP?
A: AGP (Accelerated Graphics Port) is a new bus architecture for 3D
graphics. The AGP slot eliminates the PCI bandwidth bottleneck by
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