ECS LS45M v1.0

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  • JEWilson
    Badcaps Veteran
    • Sep 2007
    • 369
    • Scotland, United Kingdom

    #1

    ECS LS45M v1.0

    I have two of these
    One is a v2. pcb, the other (giving me problems) is a v1. pcb

    The issue is with the keyboard.
    AT POST, sometimes the mobo will issue a beep or beeps, flash the num, alpha and scroll lock leds and I will lose the keyboard.

    Naturally enough I thought this was down to bad caps
    Sure enough, albeit the caps did not show bad phy. signs or bad ESR,
    I replaced both the CPU I/P and O/P VRM as well as all the 10V 1000uF
    caps on the mobo. All the other caps are 470uF or under.

    Post recap, the issue still persists.

    I tried testing the ESR all of the remaining caps and found four or five
    that had suspect ESR in cct. I took them out and tested the ESR again.
    This confirmed my suspisions.

    Post recap, the issue still persists.
    Checked the solder work on the superIO IC - this is good (appears ok).

    Any other suggestions from forum members?

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