Dell monitor won't stay on after increasing memory

Posted on 2009-12-20
Last Modified: 2013-11-10
I increased the memory and now the monitor stays amber.  It is not the monitor because it works fine when I plug it in to another computer.

The computer is an Optiplex GX 270.  I cannot read the monitor type as it was made in China and all the writing is in chinese on it.

If I turn the monitor off and back on, the green light stays lit for about 5 seconds and then the monitor makes a clicking sound and goes back amber.

I have checked the memory chips and they seem to be in ok.  The monitor card is integrated into the motherboard.

Question by:cmdman
    LVL 57

    Accepted Solution

    If you take the memory out, will the monitor work fine again?
    LVL 62

    Expert Comment

    by:☠ MASQ ☠
    My thought too - the Dell motherboard uses shared RAM to provide the graphics memory.  
    Hopefully we can change the question into how do I install more memory without my graphics card getting messed up.
    LVL 26

    Expert Comment

    Optiplex GX270 are absolutely notorious for faulty motherboard capacitors.
    The RAM uses +5v power.
    On-board video is primarily powered by +5v to the chipset.
    I suspect that adding more load [the RAM] on +5v when the power was already unstable due to bad caps was enough to put it over the top.


    Author Comment

    Good idea you had.  Just put the old memory back in and the monitor is working.

    What gives here?

    Author Comment


    Just read about the RAM I ordered.  It says it is high density.  Maybe I need low?

    Author Closing Comment

    Ok giltjr, after doing somemore reading I have decided that it is the high density RAM that is causing the problem.

    You got me on the right track.

    LVL 62

    Expert Comment

    by:☠ MASQ ☠
    You need PC2700 non-ECC paired modules.  Ideally if you have four they should all have the same speed (333 or 400MHz).
    Fill the slots in the order:
    1) (White clips)
    2) (White clips) Matched module for 1)
    3 & 4 (Black clips) (together) Ideally matching 1)

    What memory are you adding? and what is in the white slot(s) already?
    LVL 57

    Expert Comment

    Are you sure the memory you got was compatible with your PC?


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