loss of graphics signal

tux1308 · 04-01-2008, 02:54 AM

I am currently running a Biostar 7300 GT graphics card to a Samsung LCD screen.

Recently my image started to vibrate and get fine white lines like static across the screen. Following that my screen would lose the signal from the computer for a few seconds with the intervals of the signal being lost increasing the longer my computer was kept on.

I have connected my laptop to the screen and appear to not get the problem. What could possibly be causing this?

Is this a mother board or a graphics card malfunction?

Please can someone help.

**Deleted090308** · 04-01-2008, 04:31 AM

Welcome to TSF.

Sounds like a heat problem.

Get rid of static electricity by touching a radiator or bare metal on the computer case.
Then unplug the computer from the wall outlet and open the case.
Remove dust inside with canned, compressed air.
Make sure the fans and heatsinks (CPU and video card) are clean.

You can monitor the temperatures and voltages with Speedfan.

tux1308 · 04-02-2008, 08:12 AM

Thanks for the advice. I installed the programme and saw that my CPU heat is over 50 degrees. Opened it up and saw a big build up of dust. Now just to clean it.

**Deleted090308** · 04-02-2008, 09:24 AM

Does the video card have a fan?
If so, you have to take the card out to clean the fan.

tux1308 · 04-03-2008, 01:00 AM

Ran the programme again and I see its actually the core of the graphics card that is reaching over 50 degrees C. I have taken a look and I don't see any dust on the fan or heatsink. The fan is working. Any thoughts?

**Deleted090308** · 04-03-2008, 03:26 AM

What does Speedfan say about the +12V?

Please post the system specifications, including the power supply.

**vladimirb** · 04-03-2008, 03:44 AM

If you are not cleaning your CPU fan you probably did not cleaned your Power Supply fan neither [I am just guessing :) ]
And how strong and how old is your Power Supply? Maybe that is the problem, a lack of power to the perifferal devices might be the problem why is your graphic card overheating.

tux1308 · 04-03-2008, 04:15 AM

No I hav'nt yet cleaned the power supply. How do I get the full run down of the specs of my pc? I am running XP. Thanks. If I remember correctly the power supply is about a year old and is 350W. I havent yet had this problem though, so the power hasn't been a problem yet.

**Deleted090308** · 04-03-2008, 06:46 AM

You have to open the case - there's a sticker on the PSU.

To get the rest of the specs:

Download " TSFdemo1" file, unpack and run it.

In "Tech Support Forum Hardware Reader" >> click "Copy to clipboard" >> paste the info in your post.

tux1308 · 04-08-2008, 09:43 AM

Sorry I took so long to get back. Here is the stats.

Tech Support Forum Hardware Reader.

OpSys: Microsoft Windows XP Professional - Service Pack 2.0
Motherboard: P4M890-8237 (Version )
CPU: Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz (Clock Speed 1862 )
CPU: Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz (Clock Speed 1862 )
RAM: 1022MB
Video: NVIDIA GeForce 7300 GT
Sound: Vinyl AC'97 Codec Combo Driver (WDM)
MODEM: Not Reported
Network: VIA PCI 10/100Mb Fast Ethernet Adapter - Packet Scheduler Miniport
Drive: MAXTOR STM3320820AS (Size ~298 GB)
Optical Drive: BENQ DVD LS DW1655
Optical Drive: CN3350P APP926X SCSI CdRom Device

PSU - 350W

info from speedfan

Vcc 3.3V - 0.05V
Vtt 1.2V - 0.81V
Vram - .24V
Vchipset - 0V
Vcc 5V - .63V

tux1308 · 04-08-2008, 09:44 AM

Also, now I have no image what so ever on my screen. With the sound on I can hear XP loading in the back, just no image of it.

**Deleted090308** · 04-08-2008, 09:56 AM

Get rid of static electricity by touching a radiator or bare metal on the computer case.
Then unplug the computer from the wall outlet and open the case.

Take the video card out - then put it back. Make sure it's seated correctly - all the way in the slot. Fasten the card with a screw at the back of the case.

Try another video card (or try your card in another computer). Sounds like your card "has ceased to be".

Your PSU is weak. What brand/model? How old is it?

tux1308 · 04-08-2008, 10:21 AM

Not sure what make. Ill check tonight. Its about a year old. However, when I plug in the power cable there is a quick surge of power through the computer while it is still off. That cant be good?

If I have to get another card, I was looking at the 8600GT 256 DDR3 card, what power supply should I get to support this?

My current card is a biostar. Is this a bad make?

**Deleted090308** · 04-08-2008, 10:34 AM

See if you can borrow a video card first.

To run an 8600GT with your computer you'd need a quality PSU with at least 430W - preferably 500W.

Good PSU info here: Power Supply Information and Selection

04-01-2008, 02:54 AM	#1 (permalink)
tux1308 Registered User Join Date: Apr 2008 Posts: 23 OS: xp	loss of graphics signal I am currently running a Biostar 7300 GT graphics card to a Samsung LCD screen. Recently my image started to vibrate and get fine white lines like static across the screen. Following that my screen would lose the signal from the computer for a few seconds with the intervals of the signal being lost increasing the longer my computer was kept on. I have connected my laptop to the screen and appear to not get the problem. What could possibly be causing this? Is this a mother board or a graphics card malfunction? Please can someone help.

04-01-2008, 04:31 AM	#2 (permalink)
Deleted090308 Not... Join Date: Jan 2007 Posts: 22,277 OS: Xp	Re: loss of graphics signal Welcome to TSF. Sounds like a heat problem. Get rid of static electricity by touching a radiator or bare metal on the computer case. Then unplug the computer from the wall outlet and open the case. Remove dust inside with canned, compressed air. Make sure the fans and heatsinks (CPU and video card) are clean. You can monitor the temperatures and voltages with Speedfan.

04-02-2008, 08:12 AM	#3 (permalink)
tux1308 Registered User Join Date: Apr 2008 Posts: 23 OS: xp	Re: loss of graphics signal Thanks for the advice. I installed the programme and saw that my CPU heat is over 50 degrees. Opened it up and saw a big build up of dust. Now just to clean it.

04-02-2008, 09:24 AM	#4 (permalink)
Deleted090308 Not... Join Date: Jan 2007 Posts: 22,277 OS: Xp	Re: loss of graphics signal Does the video card have a fan? If so, you have to take the card out to clean the fan.

04-03-2008, 01:00 AM	#5 (permalink)
tux1308 Registered User Join Date: Apr 2008 Posts: 23 OS: xp	Re: loss of graphics signal Ran the programme again and I see its actually the core of the graphics card that is reaching over 50 degrees C. I have taken a look and I don't see any dust on the fan or heatsink. The fan is working. Any thoughts?

04-03-2008, 03:26 AM	#6 (permalink)
Deleted090308 Not... Join Date: Jan 2007 Posts: 22,277 OS: Xp	Re: loss of graphics signal What does Speedfan say about the +12V? Please post the system specifications, including the power supply.

04-03-2008, 03:44 AM	#7 (permalink)
vladimirb Mentor Hardware Team Join Date: Mar 2008 Location: Banja Luka, Serb Republic Posts: 3,681 OS: xp pro sp3, Server 2003, Windows 7 Professional x64bit My System	Re: loss of graphics signal If you are not cleaning your CPU fan you probably did not cleaned your Power Supply fan neither [I am just guessing :) ] And how strong and how old is your Power Supply? Maybe that is the problem, a lack of power to the perifferal devices might be the problem why is your graphic card overheating.

04-03-2008, 04:15 AM	#8 (permalink)
tux1308 Registered User Join Date: Apr 2008 Posts: 23 OS: xp	Re: loss of graphics signal No I hav'nt yet cleaned the power supply. How do I get the full run down of the specs of my pc? I am running XP. Thanks. If I remember correctly the power supply is about a year old and is 350W. I havent yet had this problem though, so the power hasn't been a problem yet.

04-03-2008, 06:46 AM	#9 (permalink)
Deleted090308 Not... Join Date: Jan 2007 Posts: 22,277 OS: Xp	Re: loss of graphics signal You have to open the case - there's a sticker on the PSU. To get the rest of the specs: Download " TSFdemo1" file, unpack and run it. In "Tech Support Forum Hardware Reader" >> click "Copy to clipboard" >> paste the info in your post.

04-08-2008, 09:43 AM	#10 (permalink)
tux1308 Registered User Join Date: Apr 2008 Posts: 23 OS: xp	Re: loss of graphics signal Sorry I took so long to get back. Here is the stats. Tech Support Forum Hardware Reader. OpSys: Microsoft Windows XP Professional - Service Pack 2.0 Motherboard: P4M890-8237 (Version ) CPU: Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz (Clock Speed 1862 ) CPU: Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz (Clock Speed 1862 ) RAM: 1022MB Video: NVIDIA GeForce 7300 GT Sound: Vinyl AC'97 Codec Combo Driver (WDM) MODEM: Not Reported Network: VIA PCI 10/100Mb Fast Ethernet Adapter - Packet Scheduler Miniport Drive: MAXTOR STM3320820AS (Size ~298 GB) Optical Drive: BENQ DVD LS DW1655 Optical Drive: CN3350P APP926X SCSI CdRom Device PSU - 350W info from speedfan Vcc 3.3V - 0.05V Vtt 1.2V - 0.81V Vram - .24V Vchipset - 0V Vcc 5V - .63V

04-08-2008, 09:44 AM	#11 (permalink)
tux1308 Registered User Join Date: Apr 2008 Posts: 23 OS: xp	Re: loss of graphics signal Also, now I have no image what so ever on my screen. With the sound on I can hear XP loading in the back, just no image of it.

04-08-2008, 09:56 AM	#12 (permalink)
Deleted090308 Not... Join Date: Jan 2007 Posts: 22,277 OS: Xp	Re: loss of graphics signal Get rid of static electricity by touching a radiator or bare metal on the computer case. Then unplug the computer from the wall outlet and open the case. Take the video card out - then put it back. Make sure it's seated correctly - all the way in the slot. Fasten the card with a screw at the back of the case. Try another video card (or try your card in another computer). Sounds like your card "has ceased to be". Your PSU is weak. What brand/model? How old is it?

04-08-2008, 10:21 AM	#13 (permalink)
tux1308 Registered User Join Date: Apr 2008 Posts: 23 OS: xp	Re: loss of graphics signal Not sure what make. Ill check tonight. Its about a year old. However, when I plug in the power cable there is a quick surge of power through the computer while it is still off. That cant be good? If I have to get another card, I was looking at the 8600GT 256 DDR3 card, what power supply should I get to support this? My current card is a biostar. Is this a bad make? Last edited by tux1308; 04-08-2008 at 10:34 AM.

04-08-2008, 10:34 AM	#14 (permalink)
Deleted090308 Not... Join Date: Jan 2007 Posts: 22,277 OS: Xp	Re: loss of graphics signal See if you can borrow a video card first. To run an 8600GT with your computer you'd need a quality PSU with at least 430W - preferably 500W. Good PSU info here: Power Supply Information and Selection Last edited by Deleted090308; 04-08-2008 at 10:35 AM.