Problems with monitor/possibly vid card

By jonese26 ยท 9 replies
May 25, 2006
  1. I'm having problems with my computer/monitor/graphics card. I don't know which one, but sometimes when i start my pc up the computer starts, i can hear everything whirring away, but the monitor is a blank screen, with the light flashing. If i press a button on the monitor, it displays the message "Monitor in power saving mode". This only happens sometimes, very randomly. Usually it fixes with a restart, but this arvo when i restarted it just kept doing the same thing. I checked all the cables, opened up the computer to check everything's plugged in, it all seems fine. After about three hours of stressing, and trying to work out whats wrong with it, my sister comes home and turned the computer on, and alas, it worked! This is extremely annoying and i dont know when its going to happen next.

    Also, even though its working now, my display has a sickly bright yellow shade. It's very weird. Can anybody help me?
  2. DonNagual

    DonNagual TechSpot Ambassador Posts: 2,406

    I'd say the first suspect is your power supply. Hopefully that is what it is anyways, as they are cheap and fairly easy to replace.

    Download and install this:

    and tell us what it is reporting for your 3.3v, 5v and 12v
  3. jonese26

    jonese26 TS Rookie Topic Starter

    Yeah that's what i thought it mite be too. It only started happening when i installed a new 6600GT AGP card. My power supply is 350W... do u think thats insufficient?
  4. jonese26

    jonese26 TS Rookie Topic Starter

    OK thanks for the link, i downloaded that program, sorry how do i get it to do that? Am i supposed to be looking at the charts?
  5. DonNagual

    DonNagual TechSpot Ambassador Posts: 2,406

    I can't remember where it tells you the voltage readings off hand, and I am unable to install it on this computer for some reason. If someone doesn't come along and give you a pointer on how to find it before I get home tonight, I'll do it once I do get home.

    In the meantime, you can search around in there yourself. It's in there somewhere ;)
  6. jonese26

    jonese26 TS Rookie Topic Starter


    Last nite, I was just using word, wasnt connected to the net or anything, and without warning, my computer turned off. Tried to turn it back on, nothing. Haven't been able to turn it on at all this morning either. This is a real pain in the *** and i rreally need my computer urgently now. I've got no idea whats wrong with it... should i buy a new power supply unit anyway?
  7. DonNagual

    DonNagual TechSpot Ambassador Posts: 2,406

    It is hard to know the exact cause without swapping parts and testing, but there is a pretty good chance that a power supply is your problem.

    I assume you don't have another one from another system you can use to test?

    If not, take a quick look at your motherboard and look for any swollen or leaking capacitors. If you don't find any, then I'd go ahead and buy a new PSU.

    Go here:
    and calculate how many watts you need, then go here: to help you pick a good PSU.

    Good luck!
  8. jonese26

    jonese26 TS Rookie Topic Starter

    Thanks heaps for your help mate. I do have an old psu from my old computer but i doubt it would have the capacity. Is there any danger in trying it though?
  9. jonese26

    jonese26 TS Rookie Topic Starter

    Hey, thanks for your help i bought a new 450 watt PSU today, all works good now.
  10. DonNagual

    DonNagual TechSpot Ambassador Posts: 2,406

    Great news! I am glad things worked out for you.
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