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Computer monitor issues. Power supply ?

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Jazz
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2011/03/11 20:54:10 (permalink)

Computer monitor issues. Power supply ?

Recently had a problem while booting.  The monitor would go into power saving mode immediately on startup.  It does this now and again and is more frequent.  Now I've checked the connections and they seem fine.  I've even changed the DVI connection to the other DVI output on the graphics card.  Now it seems to be working fine at the moment.

I'm thinking this could be a PSU issue ?

I do occasionally find the hard drive fails to boot up.  I always manage to solve this by unplugging the power connector to the HDD and reconnecting it.

Any suggestions....

I'm thinking it could be the PSU, the cables (DVI or power), the connectors (monitor or graphics card) or may be the monitor.


Cheers

Jazz




#1

14 Replies Related Threads

    Dan Nukem
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    Re:Computer monitor issues. Power supply ? 2011/03/12 00:00:16 (permalink)
    It's not a HP Pavillion, is it?
    #2
    Jazz
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    Re:Computer monitor issues. Power supply ? 2011/03/12 18:34:47 (permalink)
    No the monitor is a LG Flatron L1950H....
    #3
    Aks
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    Re:Computer monitor issues. Power supply ? 2011/03/13 12:41:06 (permalink)
    It sounds stupid but you don't have an onboard graphics card and a PCI one do you?

    Also, you can download stress tests (I'm not 100% sure on the top of my head which are the best ones) but they'll tell you what's up with your computer and find out what is failing. 
    post edited by Aks - 2011/03/13 12:42:15

    "Train hard or don't bother training at all!"

    #4
    Jazz
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    Re:Computer monitor issues. Power supply ? 2011/03/13 18:17:43 (permalink)
    Aks

    It sounds stupid but you don't have an onboard graphics card and a PCI one do you?



    It's a Radeon X1950 Pro (AGP) if that helps ?

    I've been using the other DVI connector on my card and not had any probs yet.

    Thanks


    #5
    Aks
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    Re:Computer monitor issues. Power supply ? 2011/03/13 19:03:02 (permalink)
    Jazz

    Aks

    It sounds stupid but you don't have an onboard graphics card and a PCI one do you?



    It's a Radeon X1950 Pro (AGP) if that helps ?

    I've been using the other DVI connector on my card and not had any probs yet.

    Thanks


    Have you checked your bios settings to ensure your PCI card (aka your X1950) is being booted up first?
    It's sometimes so obvious that it's not obvious if that makes sense.


    "Train hard or don't bother training at all!"

    #6
    Jazz
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    Re:Computer monitor issues. Power supply ? 2011/08/01 21:35:34 (permalink)
    The problem has happened again....
     
    My computer crashed and I reset it but the monitor won't boot up at all.
     
    I'm pretty sure it's the power supply (monitor works fine on another machine).
     
    I think I might test the power supply (it's about 6-7 years old).  The other option is to try a different graphics card.
     
    I might use a multimeter to test it  ?
     
    Thanks
     
    #7
    Jazz
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    Re:Computer monitor issues. Power supply ? 2011/08/02 22:00:55 (permalink)
    Ok an update.....
     
    Things I've tried
     
    1. I've checked the monitor + cables on another puter
    2. Swapped the Graphics card for an older one and tried all DVI and VGA combinations.
    3. Unplugged memory and started computer.  I get continuous beeping sound (does this mean it's not a MB issue ?).
    4. Tried starting puter with just 1 x 512 MB memory board.  Different card in each slot.  Not going to try all combinations, I'm sure this isn't the problem ?
    5. Disconnected all power cables and tested 20 pin MB connector with multimeter + tested all other power cables. Floppy drive cable no voltage (don't suppose that matters ?).
    Reconnected MB cable and tested GPU and Sata cables (all other cables connected.  (Again does this matter ?)
    6. Tried disconnecting power from monitor and holding on switch for 20-20 secs.
    7. All fans working...
    8. battery removed volts less than 0.5 V.  Must replace, but that can't be the solution ?
    9. Tried running without battery
    10. Tried running just GPU + SATA
     
    Things that seem different or I've noticed
     
    1. 'Power on' button needs to be held down for several secs to switch off power.
    2. Keyboard doesn't work or light up for a brief second
    3. Before 'crash' windows didn't always show the correct time (CMOS battery I'm told)
    4. Occasionally SATA drive doesn't boot.  This is often solved by unplugging and replugging the power cable. (this has been happening for ages.
     
    Is there anything else to do ?
     
    Thanks for your help
    Jazz
     
     
    #8
    essex_chris
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    Re:Computer monitor issues. Power supply ? 2011/08/02 22:25:46 (permalink)
    Try another PSU

    Awesome pic, but Tony you're not doing yourself many favours posting up tips on preventing the gag reflex and then a picture of a guy touching his toes - Ak
    #9
    Jazz
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    Re:Computer monitor issues. Power supply ? 2011/08/02 22:41:42 (permalink)
    I don't have one but worth a try if I can get hold of one
     
    Surely a drop in voltages would indicate a faulty one ?
    Or could there be other problems not easy to diagnose ?
    #10
    theITman
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    Re:Computer monitor issues. Power supply ? 2011/08/02 22:48:41 (permalink)
    What voltage is your PSU? The 9V rail ratings? not the overall rating!
     
    Did it ever work ok with the x1950?
    #11
    Jazz
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    Re:Computer monitor issues. Power supply ? 2011/08/02 23:35:50 (permalink)
    theITman

    What voltage is your PSU? The 9V rail ratings? not the overall rating!

    Did it ever work ok with the x1950?

     
    I'm not 100% sure.  It's an Antec EA-650 Switching power supply from the label.  I can't find any more info.
     
    The following product I guess....
     
    http://www.antec.com/Beli...e=MQ==&id=MTIzMg==
     
    It's always worked with the X1950.  Although I have a feeling I had to upgrade from a 450 W to get it to work (X1950 requires a minimum of 450W).  It 's weird because I have a manual for An Antec True Power supply which it clearly isn't.  So maybe I didn't upgrade and I've had the PSU for six years.  They gave me the wrong manual ?
     
    The MB is a Gigabyte 8IG1000PRO-G
     
    http://www.gigabyte.com/p...-page.aspx?pid=1760#sp
    post edited by Jazz - 2011/08/02 23:40:13
    #12
    xmarcx
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    Re:Computer monitor issues. Power supply ? 2011/08/02 23:46:55 (permalink)
    Could be motherboard or psu, go with the cheaper option first and try another psu first if that dosent fix it i would say replace the cmos battery and upgrade the motherboards bios before replaceing it.
     
    Marc...
    #13
    Jazz
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    Re:Computer monitor issues. Power supply ? 2011/08/03 20:25:18 (permalink)
    Took it in today.  The motherboard is dead.
     
    I can pick up the 'exact' board from ebay for £50 (from china and not new though).  Or buy a similar board for about the same price.
     
    The problem is I'm not 100 % sure what board to get.  My processor is a 3.2 Prescott Pentium 4 fitting a Socket 478. The memory would have to be right as well.
     
    Another issue is if I buy a new board I'll need a new HDD. Since I failed to back up my drive I'd have to install windows on the new drive and use my old one as a slave to access it.
     
    I will be getting a new puter before BF3 comes out.  But want to give my old one to my Dad.  So it needs to be working....
     
    Thanks for your help
     
    Jazz
    #14
    Jazz
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    Re:Computer monitor issues. Power supply ? 2011/08/10 01:30:08 (permalink)
    Put a similar MB in today (GA-8IPE1000, £30 off Ebay).  It works fine so far.  I didn't have to reinstall windows either....
     
    So all is good....
     
    Thanks for your help :)
    #15
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