[SOLVED] "no signal", gf8800gts

u551 · 11-05-2008, 10:41 AM

Hi

I was installing new operating system on an old computer of my friends, just a minute ago, and using my primary display because didnt have another one.

So i got ready, switched display cable back to my own computer but got "no signal" when windows loaded display drivers. I can run in safe mode, but the signal just disappears when i try to boot normally. And i didnt do anything but had the cable connected to another computer for an hour!

So is my graphic card broken now? Or psu? or display? Thanks for any help...

Oh, the card is geforce 8800 GTs.

EDIT: i also swapped the same power cord between the computers, but that shouldnt have any effect either, right?

**manic** · 11-05-2008, 01:11 PM

List hardware specs, including power supply wattage and brand..

u551 · 11-05-2008, 01:18 PM

You can see the specs on the "My system" thing next to the avatar picture.

I got plenty of warranty left on components, just need to figure out what piece of hardware (if any) to take in - bought from different shops around the town :C

**manic** · 11-05-2008, 02:05 PM

Make sure power cable is attached to video card. Not a big fan
of cheiftec psu's. Make sure video card is seated in good and tight.
May have loosened up. You would think that it would show no display
at all, but you never know.

u551 · 11-05-2008, 02:43 PM

Im actually starting to think its PSU thats broken. I ran prime95 torture test and cpu temperature just rocketed till i was too scared to continue the test. Dont remember that happening before...

u551 · 11-06-2008, 01:28 AM

Nevermind the last post, the program just didnt read temps correctly :P Anyways I just reseated the graphics adapter and checked power cables -> didnt help, still cant boot to windows normally (or I can, but the display just doesnt follow). Going to test parts on another computer when I get access to one....

Tumbleweed36 · 11-06-2008, 05:34 AM

Prime suspect = Chieftec = very weak power supply brand. Do you know someone who has another one you can try?

u551 · 11-06-2008, 05:36 AM

Solved, just by reinstalling video drivers :) This was one weird problem I must say (never seen drivers mess themselves up from un/rehooking the cable)

Thanks

**manic** · 11-06-2008, 11:00 AM

Me either,,,strange, but if your up and runnings its all good...

11-05-2008, 10:41 AM	#1 (permalink)
u551 Registered User Join Date: Sep 2007 Location: Tampere, Finland Posts: 197 OS: WinXP, sp2 My System	[SOLVED] "no signal", gf8800gts Hi I was installing new operating system on an old computer of my friends, just a minute ago, and using my primary display because didnt have another one. So i got ready, switched display cable back to my own computer but got "no signal" when windows loaded display drivers. I can run in safe mode, but the signal just disappears when i try to boot normally. And i didnt do anything but had the cable connected to another computer for an hour! So is my graphic card broken now? Or psu? or display? Thanks for any help... Oh, the card is geforce 8800 GTs. EDIT: i also swapped the same power cord between the computers, but that shouldnt have any effect either, right? Last edited by u551; 11-05-2008 at 10:55 AM.

11-05-2008, 01:11 PM	#2 (permalink)
manic Mod Hardware Team Join Date: Aug 2005 Location: Florida Posts: 5,244 OS: xp	Re: "no signal", gf8800gts List hardware specs, including power supply wattage and brand.. __________________

11-05-2008, 01:18 PM	#3 (permalink)
u551 Registered User Join Date: Sep 2007 Location: Tampere, Finland Posts: 197 OS: WinXP, sp2 My System	Re: "no signal", gf8800gts You can see the specs on the "My system" thing next to the avatar picture. I got plenty of warranty left on components, just need to figure out what piece of hardware (if any) to take in - bought from different shops around the town :C

11-05-2008, 02:05 PM	#4 (permalink)
manic Mod Hardware Team Join Date: Aug 2005 Location: Florida Posts: 5,244 OS: xp	Re: "no signal", gf8800gts Make sure power cable is attached to video card. Not a big fan of cheiftec psu's. Make sure video card is seated in good and tight. May have loosened up. You would think that it would show no display at all, but you never know. __________________

11-05-2008, 02:43 PM	#5 (permalink)
u551 Registered User Join Date: Sep 2007 Location: Tampere, Finland Posts: 197 OS: WinXP, sp2 My System	Re: "no signal", gf8800gts Im actually starting to think its PSU thats broken. I ran prime95 torture test and cpu temperature just rocketed till i was too scared to continue the test. Dont remember that happening before...

11-06-2008, 01:28 AM	#6 (permalink)
u551 Registered User Join Date: Sep 2007 Location: Tampere, Finland Posts: 197 OS: WinXP, sp2 My System	Re: "no signal", gf8800gts Nevermind the last post, the program just didnt read temps correctly :P Anyways I just reseated the graphics adapter and checked power cables -> didnt help, still cant boot to windows normally (or I can, but the display just doesnt follow). Going to test parts on another computer when I get access to one....

11-06-2008, 05:34 AM	#7 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,657 OS: XP Professional	Re: [SOLVED] "no signal", gf8800gts Prime suspect = Chieftec = very weak power supply brand. Do you know someone who has another one you can try? __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.

11-06-2008, 05:36 AM	#8 (permalink)
u551 Registered User Join Date: Sep 2007 Location: Tampere, Finland Posts: 197 OS: WinXP, sp2 My System	Re: [SOLVED] "no signal", gf8800gts Solved, just by reinstalling video drivers :) This was one weird problem I must say (never seen drivers mess themselves up from un/rehooking the cable) Thanks

11-06-2008, 11:00 AM	#9 (permalink)
manic Mod Hardware Team Join Date: Aug 2005 Location: Florida Posts: 5,244 OS: xp	Re: [SOLVED] "no signal", gf8800gts Me either,,,strange, but if your up and runnings its all good... __________________