Interesting AGP warning LED problem
in [Asus]
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From: Paul on 11 Jan 2008 16:18 kimiraikkonen wrote: > > Hi Paul, > Thanks for your polite and friendly care so far, however i wanted to > mail from private but it seems it's fake due to spam, doesn't matter. > > Currently, the aim of opening the topic is that i sometimes have > display problem like display goes off and comes back for a while. > System doesn't complain as beep or reset like there's no AGP card when > this problem occurs, only monitor doesn't display anything, even i can > see my shared files on the network through a different computer. After > waiting for a while display comes back. That problem is the main > purpose of the topic but the problem brought me to different places > like AGP warn Led or else which are not may be the reason. > > Don't know but my current monitor is almost 10 years CRT one, maybe it > may be the reason for this problem. Could be? > > I'm using 1024x768 @ 60hz for many years with no such problem. But it > may be dying. > > Do you think that "display goes off and comes back" problem because of > monitor? > > Thanks! To test for that problem, try another monitor. If a different monitor also does it, then your 10 year old CRT is not at fault. The VGA interface has RGBHV. R, G, B are the color signals. H and V carry synchronization pulses. If the monitor wasn't multisync, then you'd probably still have a scrambled or discolored image on the screen, if any one signal dies. If the monitor was multisync, an onscreen display would give an error indication if H or V went missing. If the high voltage in the CRT was failing, you might hear a noise when the picture disappears. Recovery from arcing of the high voltage is usually pretty fast. I'd say it probably is not the monitor. But you can test by trying another monitor. Paul
From: kimiraikkonen on 11 Jan 2008 16:54 On Jan 11, 11:18 pm, Paul <nos...(a)needed.com> wrote: > kimiraikkonen wrote: > > > Hi Paul, > > Thanks for your polite and friendly care so far, however i wanted to > > mail from private but it seems it's fake due to spam, doesn't matter. > > > Currently, the aim of opening the topic is that i sometimes have > > display problem like display goes off and comes back for a while. > > System doesn't complain as beep or reset like there's no AGP card when > > this problem occurs, only monitor doesn't display anything, even i can > > see my shared files on the network through a different computer. After > > waiting for a while display comes back. That problem is the main > > purpose of the topic but the problem brought me to different places > > like AGP warn Led or else which are not may be the reason. > > > Don't know but my current monitor is almost 10 years CRT one, maybe it > > may be the reason for this problem. Could be? > > > I'm using 1024x768 @ 60hz for many years with no such problem. But it > > may be dying. > > > Do you think that "display goes off and comes back" problem because of > > monitor? > > > Thanks! > > To test for that problem, try another monitor. If a different monitor > also does it, then your 10 year old CRT is not at fault. > > The VGA interface has RGBHV. R, G, B are the color signals. H and V carry > synchronization pulses. If the monitor wasn't multisync, then you'd probably > still have a scrambled or discolored image on the screen, if any one signal > dies. If the monitor was multisync, an onscreen display would give an error > indication if H or V went missing. > > If the high voltage in the CRT was failing, you might hear a noise when > the picture disappears. Recovery from arcing of the high voltage is > usually pretty fast. > > I'd say it probably is not the monitor. But you can test by trying another > monitor. > > Paul- Hide quoted text - > > - Show quoted text - Hi Paul, This old monitor is a multisync one and it has no OSD controls, just has 9 screen functions with numerous buttons, works at its native resolution over the years which is 1024x768(a)60hz. I read some problem just like mine which may indicate to monitor: http://en.allexperts.com/q/Monitor-Problems-2115/Monitor-blink.htm Because when this screen problem occurs with that old monitor, the system is completely working stable except display, additionaly i can see my files on this display problem-having PC from another PC on the LAN. About the AGP card problem, currently the card is insterted and no AGP warning LED lits, there's no LED warning with my existing AGP card seems OK for now, i can play 3D games and more with burn-smelled card :-), except mysterious display problem(going and coming back for an instant). Also in my territory electricty is not stable sometimes as everywhere in the world, maybe this old monitor's power supply is dying. I'll inform if any bad thing happens. Thanks for your great care. Onur
From: kimiraikkonen on 11 Jan 2008 19:49 On Jan 11, 11:18 pm, Paul <nos...(a)needed.com> wrote: > kimiraikkonen wrote: > > > Hi Paul, > > Thanks for your polite and friendly care so far, however i wanted to > > mail from private but it seems it's fake due to spam, doesn't matter. > > > Currently, the aim of opening the topic is that i sometimes have > > display problem like display goes off and comes back for a while. > > System doesn't complain as beep or reset like there's no AGP card when > > this problem occurs, only monitor doesn't display anything, even i can > > see my shared files on the network through a different computer. After > > waiting for a while display comes back. That problem is the main > > purpose of the topic but the problem brought me to different places > > like AGP warn Led or else which are not may be the reason. > > > Don't know but my current monitor is almost 10 years CRT one, maybe it > > may be the reason for this problem. Could be? > > > I'm using 1024x768 @ 60hz for many years with no such problem. But it > > may be dying. > > > Do you think that "display goes off and comes back" problem because of > > monitor? > > > Thanks! > > To test for that problem, try another monitor. If a different monitor > also does it, then your 10 year old CRT is not at fault. > > The VGA interface has RGBHV. R, G, B are the color signals. H and V carry > synchronization pulses. If the monitor wasn't multisync, then you'd probably > still have a scrambled or discolored image on the screen, if any one signal > dies. If the monitor was multisync, an onscreen display would give an error > indication if H or V went missing. > > If the high voltage in the CRT was failing, you might hear a noise when > the picture disappears. Recovery from arcing of the high voltage is > usually pretty fast. > > I'd say it probably is not the monitor. But you can test by trying another > monitor. > > Paul Hi again Paul, I want to make a quick update about display problem with my old monitor: It occured again for sometimes, when the screen went away i slapped powerful on the monitor lol :) and screen came back! This method brought display back 2 times with my slap to the monitor. I hope it's not an coincidence, i just determined this for 2 times with my slap to the monitor. I think VGA card is innocent.
From: kimiraikkonen on 12 Jan 2008 17:45 On Jan 12, 2:49 am, kimiraikkonen <kimiraikkone...(a)gmail.com> wrote: > On Jan 11, 11:18 pm, Paul <nos...(a)needed.com> wrote: > > > > > kimiraikkonen wrote: > > > > Hi Paul, > > > Thanks for your polite and friendly care so far, however i wanted to > > > mail from private but it seems it's fake due to spam, doesn't matter. > > > > Currently, the aim of opening the topic is that i sometimes have > > > display problem like display goes off and comes back for a while. > > > System doesn't complain as beep or reset like there's no AGP card when > > > this problem occurs, only monitor doesn't display anything, even i can > > > see my shared files on the network through a different computer. After > > > waiting for a while display comes back. That problem is the main > > > purpose of the topic but the problem brought me to different places > > > like AGP warn Led or else which are not may be the reason. > > > > Don't know but my current monitor is almost 10 years CRT one, maybe it > > > may be the reason for this problem. Could be? > > > > I'm using 1024x768 @ 60hz for many years with no such problem. But it > > > may be dying. > > > > Do you think that "display goes off and comes back" problem because of > > > monitor? > > > > Thanks! > > > To test for that problem, try another monitor. If a different monitor > > also does it, then your 10 year old CRT is not at fault. > > > The VGA interface has RGBHV. R, G, B are the color signals. H and V carry > > synchronization pulses. If the monitor wasn't multisync, then you'd probably > > still have a scrambled or discolored image on the screen, if any one signal > > dies. If the monitor was multisync, an onscreen display would give an error > > indication if H or V went missing. > > > If the high voltage in the CRT was failing, you might hear a noise when > > the picture disappears. Recovery from arcing of the high voltage is > > usually pretty fast. > > > I'd say it probably is not the monitor. But you can test by trying another > > monitor. > > > Paul > > Hi again Paul, > I want to make a quick update about display problem with my old > monitor: > > It occured again for sometimes, when the screen went away i slapped > powerful on the monitor lol :) and screen came back! This method > brought display back 2 times with my slap to the monitor. > > I hope it's not an coincidence, i just determined this for 2 times > with my slap to the monitor. I think VGA card is innocent. Update about AGP warning LED situation: The AGP LED lits intermittently / irregularly sometimes in a day, but i can boot up fine and play 3D games, the light isn't stable and isn't steady. Lights intermittently with my 4 year-old graphic card which works fine. Should i concern?
From: Paul on 12 Jan 2008 19:08
kimiraikkonen wrote: > > Update about AGP warning LED situation: > > The AGP LED lits intermittently / irregularly sometimes in a day, but > i can boot up fine and play 3D games, the light isn't stable and isn't > steady. Lights intermittently with my 4 year-old graphic card which > works fine. > > Should i concern? We know that something is not working right. You have two choices. Have a professional shop take it apart and try to repair it. Or continue to use it as it is. If you don't want to waste money on the machine, continue to use it. It is apparent from your description, that "AGP warn" cannot turn off your power supply, for some reason, so having the LED go on and off, doesn't seem to mean anything at all. As you've already noted, the LED is on when the AGP slot has no card in it. And it isn't supposed to do that. The LED should remain off, if no AGP card is present. The transistor circuit is supposed to check, by some means, that a card is present, before the LED can be enabled. That is what it is supposed to do. Paul |