Memory :

Memory SIMMs SIMM memory modules come in either 30 pin or 72 pin variety. When older 30 pin SIMMs are used, they need to be used in matched pairs or in matched sets of four. When 72 pin SIMMs are used in a Pentium or faster computer, they need to be installed in matched pairs. Not all mainboards support large capacity SIMMs (64MB, etc.). Check with mainboard manufacturer's documentation or website for the type and maximum capacity, per slot, of SIMM for your board. If we did not sell the motherboard and there is a typographical error in the motherboard manufacturer's manual (saying it takes 64s and it does not...it happens!), we can not guarantee the compatibility of these SIMMs. SDRAM DIMMs DIMM memory modules require a 168 pin socket to plug into. Sometimes, a board has both SIMM and DIMM slots. Rarely will a mainboard accept both SIMMs AND DIMMs simultaneously. More often than not, the SIMMs, if present, will need to be removed in favor of using the DIMMs. Before ordering your DIMMs, check to see if your motherboard has an Intel VX chipset. We have found that our DIMMs will not work properly in motherboards with VX chipsets. Check mainboard manufacturer's documentation or website for compatibility. SDRAM PC100 DIMMs PC100 DIMMs are DIMMs that utilize a board's 100 MHz bus. In most cases, a mainboard that is running a CPU with a 100 MHz bus, will require PC100 DIMMs.