Flickering dots randomly over screen

shkapr54 · 05-08-2008, 03:00 PM

TFT monitor (19")
Windows xp
Nvidia FX500
DV connection
2gb ram
Getting more of a problem, not sure if it is the video card but posted in this section as the most likely cause. Does not always occur but about half the time the pc is booted. Random flickery little lights across the screen (random flickering pixels), all over really but not so bad that the screen is unusable. Re-booting usually gets rid of them and provides the usual crystal clear image. Often happens when my son has been playing games and again cured by re-boot. Recently downloaded latest driver from nvidia but no effect. I think my psu is playing up due to other problems.. could this be a cause? Any advice gratefully accepted.
Thanks

Underclocker · 05-09-2008, 11:42 PM

Yes, your PSU could be the cause. AGP graphics cards require a unit capable of 18A output on the +12V rail, while PCI-E cards need 26A. Try out a quality unit capable of the relevant output.

05-08-2008, 03:00 PM	#1 (permalink)
shkapr54 Registered User Join Date: May 2008 Posts: 3 OS: XP	Flickering dots randomly over screen TFT monitor (19") Windows xp Nvidia FX500 DV connection 2gb ram Getting more of a problem, not sure if it is the video card but posted in this section as the most likely cause. Does not always occur but about half the time the pc is booted. Random flickery little lights across the screen (random flickering pixels), all over really but not so bad that the screen is unusable. Re-booting usually gets rid of them and provides the usual crystal clear image. Often happens when my son has been playing games and again cured by re-boot. Recently downloaded latest driver from nvidia but no effect. I think my psu is playing up due to other problems.. could this be a cause? Any advice gratefully accepted. Thanks

05-09-2008, 11:42 PM	#2 (permalink)
Underclocker Tech Hardware Team Join Date: Aug 2007 Location: A land girt by sea. Posts: 551 OS: Windows XP Pro SP3 My System	Re: Flickering dots randomly over screen Yes, your PSU could be the cause. AGP graphics cards require a unit capable of 18A output on the +12V rail, while PCI-E cards need 26A. Try out a quality unit capable of the relevant output. __________________ Everest CPU-Z Memtest86 SpeedFan ORTHOS