Suddenly have no signal to LCD displays, from GF880GTX

Ghiddy

Senior member
Feb 14, 2011
306
0
0
I've had this system for about 4 years:

Win 7 64bit
IP35-PRO Plus
Q6600 (slightly overclocked, can't remember settings)
8GB RAM
5 HDD's (1 OS partitions, and the other 4 in a RAID 5, using mobo's onboard RAID)
GeForce 8800 GTX
Corsair 600W PS
Dell 2405fpw + El Chealo LG 22" LCD, both via DVI

System has been fine for four years, until today. While I was in Windows, doing some work, the displays both started flickering. Within a couple minutes, the flickering rapidly got worse, until the displays went off (power on, but the LED colors on the front are yellow -- how it is when the system is off or in standby/sleep).

Tried the following:

  1. Several reboots
  2. Several Shutdowns
  3. Disabled power to EVERYTHING, via powerstrip
  4. Unplugged, plugged back in Monitors + PC
  5. Switch DVI ports on the two LCD's
  6. Boot w/ one LCD plugged in at a time
  7. Boot w/ LCD's on/off, plugged in/not
  8. Flipped the 'CMOS clear' switch, power button, then CMOS back, then tried to boot up
  9. Boot while all HDD's/DVD driver were disconnected from mobo's SATA ports
  10. Verified signal source correct on LCD's (DVI)

None of the above worked. Every time I boot up, i get the yellow LED's on the LCD's. If I wait for the PC to boot all the way I hear the windows startup sound, I can even log in and do stuff like run programs, reboot & power down, using keyboard only (I used my Win7 laptop as a guide for what keystrokes to use).

What the heck is going on? The only thing I haven't tried, which I will probably do right now, is reseat/remove the video card and the 3ware SATA RAID controller (currently unused).

What else can I try? I don't have a CRT to troubleshoot with. There's a 3rd connector on the GF8800, looks like S-Video. I'll also try to find a cable to see if that works.
 

ViRGE

Elite Member, Moderator Emeritus
Oct 9, 1999
31,516
167
106
As you've already said you'll do, strip your PC to a bare minimum and see if that works. But more than likely you've blown the NVIO* chip and the card is toast.:(

nvio2.jpg


* On 8800GTX through GTX 2xx, all display functionality and SLI communication is handled by a chip separate from the GPU. This is NVIO
 
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