serious video issue

[eirche]

hmmm, how to i begin? don't really know how to describe it.

i had many instances where the video signal stopped during normal use of computer. first i saw broken, meshed, black lines on screen for 1-2 seconds. then the screen went black, video signal stopped. i know for sure there is no signal, not signal of black screen.

these instances involve mouse events, resizing or moving a windows, resizing or sorting a column. they are regular use of windows, not in games.

i know one condition which i can reproduce for video signal to stop. i omit it from this post atm.

i tried google with different phrases with no luck.

system spec:
Windows XP Pro
Athlon 64 X2 4200+
Asus A8N-SLI (NVIDIA nForce4 SLI chipset, lastest BIOS version 1014)
BFG GeForce 7900 GT OC (lastest driver version 84.21)
OCZ PC-3200 DDR400 1GB (2x512MB) (OCZ4001024PDC-K)
500w psu

 

[Frank_M]

Odd.
Bad psu? Driver conflicts? IRQ conflict?
These are my first thoughts.

 

[Nitro350Z]

any chance you are using an lcd monitor with your card?

I had a simmilar problem but with an older ati card and installing drivers that came with my monitor fixed my problem

if your using a crt then it may be your card overheating or that its core is damaged from overclocking, if its still on waranty and its not your monitor then rma it.

 

[eirche]

this is indeed very odd. i couldn't reproduce the condition for video signal failure. i thought i could.

i am using an LCD with DVI connection. i also installed the lastest driver for monitor, downloaded from samsung.com.

i will contact BFG support. meanwhile if you have any ideas, good or bad, please post them.

 

[Frank_M]

i will contact BFG support. meanwhile if you have any ideas, good or bad, please post them.

Do that.
You can also try:
checking the monitor cable
checking the device manager to see if it shows irq conflicts
reinstalling video card drivers
pulling the gfx card out, spraying a bit of contact spray into the slot then putting it back; same for the cable plug
trying another monitor
monitoring the motherboards voltages