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sunshine
06-10-2007, 01:41 AM
My friend has had much trouble with her monitor going black and has replaced several components of her PC but is still having the same problem. I just got an update on what she has done and where she stands now. I will post her report below and if anybody has any suggestions I will be very grateful for any help that you cn give. Thank you.

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OK Bobby, here goes!

I really need to keep a diary or record of the steps I take when working out a problem, I tend to forget exactly what steps I've taken. When you're trying to get something accomplished or worked out over several hour or couple of day and are constantly interrupted with phone calls, chores that have to be done or other commitments it's hard to keep track of everything.

Let's start with the power supply. It fried, I changed it out. I was concerned that maybe something had overheated, like the mobo, processor or graphic card but they all seemed cool enough when I discovered the power supply was bad, there was good air flow through the case due to in take and out take fans.

I used the PC for hours, 8 or 10 at least, when the screen went black while I was working. Strange but maybe some odd glitch. Powered off the PC and then restarted, was working for a couple hours and got a black screen! Well it only got worse to the point where the screen remained black after the posting screens.

I tried first one spare monitor and then other, neither would display after the posting screen. Later I pressed on the graphic card, processor, the mobo board, memory sticks, when I tried again the monitor continued to display on through to the desktop. Everything was working great. I knew nothing was really solved but waiting for more symptoms. LOL

Now here is where, I think, I later drew a blank, lost my mind, or just got so distracted I didn't recall this part, but the screen on the spare monitor went black. At this point I determined that most likely the graphic card was bad. Makes sense doesn't it? I didn't have a spare card to test, although I probably have 5 or 6 graphic cards around here in and outside the PCs none of them are AGP like in this computer, all PCI, so I went and purchased a new one, $80.

Installed the card, cranked up the system, have the spare monitor hooked up, boots up just fine. I installed the drivers and worked with the PC off and on for several hours, everything fine. So problem solved I thought. Sometime later we hauled that huge ViewSonic back in here and hook it up. It ran and ran and ran for hours. Then I got a black screen!

NOW I determine for sure that it's the monitor after all. Somehow at the time it sliped my mind that the spare monitor had also gotten a black screen. To be honest it was hovering in the back of my mind and I was trying to remember if the spare had ever gotten a black screen. While thinking about and shopping for a new monitor I bought the "one in all", that's when it came into my life, Bobby, LOL

So the next day, yesterday morning, I bought the new View Sonic, hooked it up and everything took off like a wild cat, configured the monitor, installed drivers, did adjustments, rebooted a few times during the day after this and that but the PC and monitor running all those hours until about 3:30 this morning when the screen when black.

I felt of everything in the case, card, CPU, mobo, memory sticks, HDDs, every thing was cool or barely warm, nothing was hot, can't be heat. I'm at my wits end. Then only thing left to replace is the mobo and CPU.

Just to give you some idea, it's taken me about an hour and half to write this post, I've been interrupted at least a half dozen times so I don't even know if I made any sense..

minsonngo
06-10-2007, 01:50 AM
What are the system specs?


When the power supply died... it could have damaged one or more of the components in the system.

Try leaving only the essentials and see if the issues still occur. Essentials are... video card, motherboard, power supply, ONE stick of memory, processor, processor heatsink and fan. If the issues remains... then one or more of the core components is bad.

If the issues does not return... try adding in the remaining components... one by one and see if the issue returns... if it does... then the last component you added is usually the problem.

sunshine
06-10-2007, 06:43 AM
Thank you for your response. I think that the MOBO would be her next replacement part. It looks like she would have been money and headaches ahead by taking her PC to a professional for evaluation.

sunshine
06-10-2007, 01:13 PM
MY friend's latest response regarding her Black Monitor problem. The suggestion was made that she unplug everything possible and add them back, one at a time, until the monitor went black again and there would be her problem So that's what she is trying now.

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I tried this, Bobby. Unplugged the 2nd HDD, CD ROM, don't have a floppy, unplugged Roadrunner. Everything but what I needed and still got the black screen This new mnitor actually give a message before it clicks off, says No Signal Snalog. It just flat loses the video signal. Don't know what would cause that but I'm suspencting the mobo.

Rb2d2
06-11-2007, 01:30 AM
Hi everyone, I'm Rb2d2, the "friend" of sunshine's. Thank you guys for all your help, suggestions and advice.

I have a Gigabyte, GA-7N400 Pro 2, mobo with nForce 2 Ultra 400 Chipset, did have a AGP NVIDIA 256 MB graphic card, AMD ATHLON XP 2600 /333 processor, 1 GB memory and 22" ViewSonic monitor.

I installed, or at least plugged in, a PCI card as suggested, a really old Hereules Stringray. I couldn't actually install it via the PC because at this point I didn't have an operating OS. I tried to install Win2000 on the C Partition but got a black screen and reboot half way through so tried restoring an earlier image using Acrones True Image. That successed and I installed the PCI. Geezzz, I only wanted the drivers but after the install I had, and still have, about 30 icons on my desk top!

http://img514.imageshack.us/img514/6776/screenshot071nu7.jpg

I got the drivers from here:

ftp://ftp.hercules.com/video/old_products/Stingray%20Series/

It's the Stingray 128 3D. So far the card seems to be working, I have not gotten a black screen since installing the card. However everything is so huge!, I have to have the settings at 1152 x 864 pixels in order to have 32 bit color. If I try to move it it up I only get 16 colors. Like I said this is an old card and if this PCI card works out I guess I'll have to get a new one. Even though I now have two very good, and expensive, AGP cards! LOL Here are the specs for the card

http://img407.imageshack.us/img407/9430/screenshot072iq0.jpg

The display is not very smooth, rather jumpy and jerky. I tried using the CD that came with my ViewSonic to configure it but the CD ROM will not even open it, no display of the contants at all. I don't know what that is all about or how I'm going to resolve it. The display on my screen is GREAT! Only a bit large, LOL.

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Now I want to mention somethiing else here. I thought I should uninstall my old card's drivers so I went looking for them in Add and Remove Programs. There are 3 sets of drivers, a Display, a Gart and an nForce. I think the nForce is for my mobo and the Display for the card? Wasn't sure about the Gart so looked that up .... On a forum someone was asking the same thing I wanted to know. I read in part:

http://forums.pcworld.co.nz/archive/index.php/t-56330.html

"GART=graphics address remapping table...... its a driver that helps the way the graphics card communicates to the OS via the agp slot....."

hummmm, could this have been my problem all along? A corrupted driver? I'm not sure just where that driver came from, the graphic card drivers CD or the mobo drivers CD. I had clean installed W2K about two weeks ago and when installing the mobo drivers, right in the middle of the install the screen went black, the machine rebooted and when it came back up the driver install continued. I thought that was odd and don't remember it happening before.

Just thought I would mention that because you all seem to be so knowledgable I figured you'll would know if that info is of any value or not.

Thank you all for your help! So far the PC is running great with the PCI card! All things considered ....

Rb2d2
06-11-2007, 06:09 PM
Update!

I really thought changing from the AGP card to a PCI card solved the problem with the monitor losing connection, the PC has been running for hours ever since the change yesterday. A while ago all of a sudden I got the black screen again, the message on the screen "No Signal Analog" appeared, BUT then the PC rebooted! Hadn't done that before.

Before, when I had the APG card installed and the screen went black I would get the message on the screen and the monitor would click off and remain off. Since everything in the tower appeared to keep running I didn't know if Windows continued to run or not, I was assuming Window was still running. I have been thinking that there was a problem between the monitor and the card, or the card and the mobo, that was making the monitor lose connection.

Since the PC rebooted this time it is now obvious that actually Windows shuts down! In which case naturally the monitor would lose the signal.

As before, once the PC starts this shut down it only gets worse. After the reboot all the way to the desktop it remained for a couple of minutes and then shut down again, it didn't reboot.

Any thoughts on what might be making Windows shut down that way all of a sudden? AND behave the way it does afterwards ....

When I changed out the card, the first time from one AGP to another one, the PC ran for hours and hours before it shut down. Once it did it only got worse each time I restarted it until it wouldn't go past the POST screens.

Then I changed out monitors and again it started up and ran for hours and hours before it shut down and afterward behaved the same way.

Now I have changed out the AGP card for a PIC, yesterday, and the PC had been running until a while ago. The only difference this time is that it rebooted on it's own however it did not remain running for very lone before it shut down again and didn't reboot.

What could be making Windows shut down in the first place? Could it still have to do with the graphic card/cards? .... drivers?