Sambuccashake
Member
+126|6871|Sweden
The following really came out of nowhere.
No heads up, no warnings, no graphic glitches, tearing, nothing.

What happened?
I was playing BF2 and all of a sudden the screen just goes black.
The game doesn't crash, I can still hear game sounds in the headphones.
I try to kill BF2 through Ctrl+alt+delete and this is where the really odd thing started.

Whenever I move the mouse, the screen goes black.
I wait a few seconds and image returns.
Move the mouse? Screen turns black...

I reboot and make it back into Windows and try to google up some answers.
As soon as I launch some kind of picture or graphic heavy page, the screen goes black.
I lean back to think things through and now I experience the only graphic related bugs yet.
Parts of the page I was looking at was flickering and the bottom half started to twitch and "bend" before the screen
went black again.

I give it a go the next day and then I only see the post screen and nothing more.
(Monitor goes into the analog/digital/analog/digital flickering before going to sleep.
Restart = not even post screen shows up
Note, the first time I fire things up I see more than after a reboot. This gradual "degradation"... Maybe means something? I dunno.

What about fans and such, anything else seem odd?
All fans are spinning gently in their idle position, GPU warms up (not overheating, just running), everything seems like it should except for the
fact that I won't get any image.

If I disconnect the cable between monitor and GPU, "Check signal cable", plug back in and the monitor get "signal" but nothing
is processed and we're back to analog/digital/analog/digital flickering before going to sleep

Suspected culprit
Since the blackening of the screen occurs when rendering a new image (moving mouse for example) I think
the GPU (purchased in 2005) is having some issues. The fans are working (and I've pulled it out and used compressed air to
clear the fan and there wasn't much dust at all) so there "must" be something else that is wrong with it.

I don't have an extra card to swap with so I'd value your help here.

What say ye great technomancers of the board?

CPU    Intel E8400
GPU    Club 3D GeForce 7800GTX 256MB PCI-E DVIx2+TV+VIDEOin
RAM     Corsair TWIN2X 6400 DDR2, 4096MB CL5, Kit w/two matched CM2X2048-6400 Dimm's
MOBO    Gigabyte GA-EP35-DS3, P35, Socket-775, ATX, GbLAN, DDR2, ICH9, DES, PCI-Ex16
HD    Seagate Barracuda 7200.9 160GB NCQ 7200rpm SATA 3Gb/s 8MB cache
PSU    Antec Neopower 500W
DVD    NEC ND-3550 DVD±R/RW
Case    Antec P180
Monitor    Samsung Syncmaster 930BF 19" TFT 4ms VGA+DVI

OS    Windows XP

Last edited by Sambuccashake (2009-09-14 00:01:22)

Defiance
Member
+438|6931

Interesting, to say that least. I've had the screen go black with sounds continue (for a few moments until a full system crash) and that was overheating. However, your problem seems far more intricate.

If you can't even POST anymore, a rather catastrophic failure seems about right. I would try and find a friend with a GFX card to borrow, or preferably, spend as little as possible on a replacement purely for the sake of making sure it's the video card. Plus, that would allow your machine to boot again.

Massive credit for thorough documentation in your post, I wish I could be of more help.
Catbox
forgiveness
+505|6976
have you tried an uninstall and reinstall of the vid card drivers...?
with driver cleaner
http://downloads.guru3d.com/Driver-Clea … d-745.html
The card might be crapping out... or even the psu?
Love is the answer
farmerfez
o wut?
+78|6791

going way left field with this one but could it possibly be the monitor?
Sambuccashake
Member
+126|6871|Sweden
Well it's always a posibility of course but it seems like it displays messages and whatnot in an orderly fashion.

However I tried something else this morning.

I started the computer, I see post screen then things go black.
Fine...

I removed the GPU and started up. Of course I can't see anything now but I listened and watched the components and realize that it doesn't really
complete the boot sequence.

No max rev of the fans, no DVD'activity as if it's trying to boot from DVD...
Could this be a motherboard issue after all?

Found this really weird thread were they keep coming back to "remove power cable and hold start button for 30 secs" which seems to do something:
http://en.kioskea.net/forum/affich-3548 … won-t-boot

EDIT: Somewhat farfetched but still...
When I manage to see the post screen I get the info that I've got a Geforce 7800 GTX card and whatnot so it doesn't seem completely dead...
Could it be like this: The GPU deliveres "Hello I'm a GPU and I'm all good" and as soon as it gets pushed it gives in.
And since my motherboard doesn't have integrated graphics, the boot sequence halts since there isn't any graphic source?
That would put us back on the GPU failure path

Last edited by Sambuccashake (2009-09-15 00:32:17)

Sambuccashake
Member
+126|6871|Sweden
*SOLVED*

T'was indeed the GPU.

I drove over to a friend of mine and swapped cards to verify and it was thus.
The_Sniper_NM
Official EVGA Fanboy
+94|6374|SC | USA |
It is about the right time for a 7 series to die. (Faulty solder material 7-8 Series Geforce)
TSI
Cholera in the time of love
+247|6241|Toronto

The_Sniper_NM wrote:

It is about the right time for a 7 series to die. (Faulty solder material 7-8 Series Geforce)
Haha. I traded my 2006 7950GT with my brother (smart guy!)  for his 9800. win?
I like pie.

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