"No Signal" ingame

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Youngmind

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Jul 7, 2011
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When I play games, in the middle of an online match, my monitor gets "no signal," and I have to restart. It seems that the issue isn't the GPU overheating from furmark, and I have the latest drivers.



 
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If I remember correctly this was a driver issue a few years ago with ATI and some incompatibilities with some monitor brands. Perhaps downgrade your drivers? Or ask for support from ATI. They should be able to help you out.
PS: Can you hear the sound from the game in the background while this happens? Do they keyboard lights respond? If so, it probably is a graphics driver issue.
 
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I can only think of 4 things that can cause this.
1 Video driver is out of wack.
2 Video card overheating
3 video cable is messed up
4 monitor is about to die
Does the whole PC crash? Is just the screen dead so you still have music, or is the whole PC dead? If the PC seems to still be running look at the monitor and cable. If the whole computer goes down try driver, then temps.
Get the newest driver for your card directly from AMD or Nvidia for the driver. Download MSI Afterburner or EVGA precision and use the onscreen tool to watch your temps while gaming, generally anything over 90-100c is too hot, most cards have a thermal safety that will power down the PC if it gets over the 110 area. If they are high clean all the pc fans with compressed air. Unplug the monitor cable to the video card and reseat it. Maybe even flip the cable 180 so the plug in the computer now goes to the monitor and the plug in the monitor now goes to the computer. If that does not work you could try replacing the DVI, or VGA cable. Lastly try another monitor, maybe borrow one or something.
 
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I used steam to update my drivers so I'd believe they're up-to-date. I tried cleaning my fans with compressed air, unplugging the monitor cable. I use my monitor's speakers so I can't hear anything if there is no signal 🙁.
 
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Your power supply rated to handle your current graphics card? I had to upgrade mine when I got my GTX260...

Else: try re-seating the card, changing drivers, cleaning the heat sink and fan...

All else: Backup the updates section of your SC2 installation and re-install the game (putting the updates...or at least the old ones back in the update folder to save from re-downloading) It's not beyond Blizzard for the problem to with their game.
 
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1. The HD 4670 is a low power card (Think it pulls a max of 55-59 watts), and your PC has a low power CPU, seems like you should be OK with the tiny "250.0 Watt " power supply. But just to check it out, UNDERCLOCK your video card. You can do this through the ATI video driver. Running the game without problems underclocked means you have a temp problem, a power problem or a graphic card hardware/firmware problem. Stock your video card should be 750 MHz. The ATI overdrive screen should let you move a slider to set the max to 600 MHZ or so. This is the first thing I'd try.

2.Are you using a VGA cable or a DVI (HDMI) cable? If you are still analog using VGA cable, try playing with a lower refresh rate. Sometimes monitors lose sync with high refresh rate. If lowering the refresh rate helps the put the refresh rate back up and try re-seating the cable at both ends or swapping in a new cable if you have a spare or another monitor you can swap with.

3. Look for game patches. If only one game has a problem then is either a driver bug or a game bug. A driver bug is fixed by trying a much older driver and seeing if the problem goes away. A game bug is fixed by posting in game forums until someone else admits they've seen the same bug. I'd try the othter two steps first, but "game bug" will turn out to be the answer.

Good luck,
TSnor
 
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I'm using a VGA cable, but do you know big of a case fan and psu can will fit in the compaq presario?

I was thinking about buying this PSU http://www.frys.com/product/6165899 since it is $10 cheaper than on newegg and a case fan while I'm at it to see if that fixes the problem. I have like $90 I think.

Edit: Measured the diameter of the area where the case fan is supposed to go and it comes to about 3.6in.
 
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That is a good PSU (Antec Earthwatts). However you have a small case and I'm not sure that you use a standard ATX form factor PSU. Googling your model (Presario SR5710F) find a bunch of ads that talk about needing a shorter than normal PSU and some fuss about the -5V line.

Before buying a new PSU, try under clocking the video card. A 4650 runs at 600 mhz. Try seting your 4670 at 600 mhz and see if that makes the problem less frequent or makes it go away. It should be a very easy test to run. Here is a screen shot from the ATI driver. http://www.overclock.net/amd-ati/445080-ati-overdrive-greyed-out.html if you need help google overclocking ATI -- ub tyou want to underclock not overclock.

goodluck
 
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I did that and I stopped getting "no signal." Too bad I'll have to play with lower settings. Also, do you know what type of case fan I should get? I'm kind of anxious about the temps, usually, when I rebooted after a "no signal," the temperature was 60-66C and the reboot time was usually around 3-4.
 
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As far as I can tell that compaq case uses a standard sized PSU. So you should be able to use most any one listed as desktop on newegg or tiger.

Because under clocking the card seems to have fixed the issue, that leaves with overheating or PSU voltage issues. Did you try an onscreen monitor software like MSI afterburner so you could see the temps while playing SC2? If they are hot you can clean the card or even try new thermal paste. If the card is not hot you can try to replace the PSU.

 
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Excellent. Very glad you are making progress.

Re power supply: a good return policy covers all problems with lack of fit. The antec earthpower you previously selected has a good reputation. ATX power supplies are 6 × 3.5 × 5.5 (inches). You can measure your current PSU and see what size it is. I couldn't find the ref I saw that talked about problems with depth and clearing the CDROM drive. A tape measure is your friend here.

Re temps: As bucknutty says, it's possible that your card is overheating and locking up (vs. getting low voltage and locking up.) The easiest check for that is to play with the card's fan speed. There are many programs that adjust the fan speed on your video card - try your card manufacturer's tool first. Set the frequency on your card back to 750 and set the fan to 100%. See if this solves the problem. There are also programs that log temps to a file so you can read them after the fail. I like GPU-Z from tech power up (google it), but there are many. You card should be stable up to 105C (although you should run it there for longevity reasons.

Finally, some video cards are stable at much higher frequency then spec'd. Overclockers love to find cards that behave this way. Some video cards are only stable at the factory spec frequency. A few cards are not stable even at factory spec, and should be caught by quality control before shipping, but some get through. Is your video card still in warranty? If the PSU doesn't fix the problem, keep the PSU, swap the video card. Or swap the card first. Just explain it works when underclocked and fails at factory spec frequency.
 
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I always had and still have the fan at 100%. I think that since I have a XFX card it is supposed to be a lifetime warranty, and I think that I have a micro-atx motherboard.

Edit: My PSU specs are 6.00" Wide X 3.25" Tall X 4 " Deep

Edit2: Should I buy a case fan, and if so which case fan should I buy from Frys?

Edit3: I can't really buy anything online since I don't have a CC or bank account. I close to Fry's.
 
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About the fan, your case has a vent on the back for a fan, its in the lower left of the case but i cant tell if it is 92mm or 80mm. My bet is that it is 92. Take a ruler and measure the fan mounting holes. Install that fan blowing warm air out the back of the case.
 
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Is there a way to test the video card in another PC ?

The AMD cpu you are using (X2 4450e) is really low power (50 watts or less) and so is your video card (under 60watts). I really can't see how you would be using more 12v then your current PSU can supply. Even assuming a huge 35 watts for the MB, chipset, etc. that's only 145 watts or about 12 amps of 12v.

Is the sticker on your PSU visible? If so what is the amp rating on the 12v rail? I'd guess it's much more than 12 amps.

Maybe send XFX a note and see about an exchange?

Were you able to try logging the video card temp with GPU-z (or equivalent) ? Lower temps are always better but noise is not your friend. The case was designed to handle the type of heat load you are generating. Agree with Bucknutty that blowing air out the back is the right direction. I'd check your MB and see if it has a header for a temp controlled fan. If not I'd get a low speed fan or a fan with an external speed control. Having a hurricane blowing thru case while gaming is OK, while playing movie or listening to audio or browsing web silence is golden.

fyi: saw this comment at newegg "Other Thoughts: I slapped in a Radeon HD 4670 and can run WoW and Wolfenstein: ET at full settings. Uppgraded the PSU to a Thermaltake Black Widow 450w." http://www.newegg.com/Product/Product.aspx?Item=N82E16883109029 implies you can get normal size atx psu in case. Do you have another 1.5 inch of clearance ?
 
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I didn't see a sticker on the PSU, but I measured the space left between the PSU and the other equipment and it came to about 3.5'' with cables in the middle of that space.
 
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