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add sdram

Discussion in 'Hardware' started by clootie, Nov 20, 2001.

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  1. clootie

    clootie Thread Starter

    Jan 10, 2001
    Iwant to increase the sdram on my HP Pavillion 8580c.It has 128mb of sdram standard running at 100mhz. The tech sheet on the unit says there are three sockets that will accommodate three 168 pin sdram,100Mhz Intel PC unbuffered DIMMS for a total of 384mb(3x128).Everyone in town(retailers) has 133Mhz DIMMS in stock and says that there is no problem adding two 133Mhz Dimms to the 100Mhz DIMM already installed as they are backward reading and there will be no conflict.What do you think..can I safely use two new 133's with the 100 or should I hold out for 100's I'm running windows 98se at 500mhz Don
  2. Shadow2531


    Apr 30, 2001
    generally yes you can use 2 pc133s and 1 pc100 just as long as you have the bus speed set at 100 or below.

    a Few motherboard might not like it, but 99% of the time it will work.

    However musking memory has told me many times that almost all 440BX boards with 3 dimm slots(which yours is) support 768Mb of ram (3x256) regardless of what the manual says and it doesn't have to be registered either.

    these pc256Mb pc133 modules that mushkin recommends for 440BX are here


    take that for what its worth. Just remember oem crap can be picky too.
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