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post #951 of 4099
Quote:
Originally Posted by tango bango View Post

At this point there is no silly questions. I'll take every sugestion I can get.
I can run a EVGA 470 GTX, a saphire 5850, or 2 8800 gtx sli and never have a crash .
The crash I get is a black screen, then I have to hold the power button down until the PC shuts down. I then restart the PC get the screen that says windows didn't shut down properly with the option safe mode. start windows normally ( sorry don't recall the whole message in that window). Most of the time after the PC boots up the GPU fan is at full speed for a few seconds.

This has happened to me a couple times in Battlefield 3.

My screen go black and I get the "Lost signal" message. After that I have to power down the PC using the power button.

Now I'm worried.
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post #952 of 4099
Quote:
Originally Posted by xutnubu View Post

This has happened to me a couple times in Battlefield 3.
My screen go black and I get the "Lost signal" message. After that I have to power down the PC using the power button.
Now I'm worried.

Are you online multi-player BF3? Does it happen in a campaign offline? Have you tried other games?

I'm wondering if it's an internet connectivity issue rather than GPU.

IF your game is crashing, forefront would be too high of either a CPU or GPU over clock without being stable. Go to stock everything to verify.

IF you are at stock and it happens another could be PSU being maxed past peak performance (in your case the 650 is plenty) or it's starting to go bad and running higher output is causing it to fail occasionally. You'd have to do a PSU swap to find out for sure.

'Lost Signal' is not the typical response error when a GPU/PSU is failing or too high of an OC to my knowledge.

Usually it's a game freezing or black screen that a CTRL+ALT+DEL shut down in task manager can cure and sometimes same scenario but hard lock up with forced reboot to get back and running.

First I would try to eliminate easier verifiable causes.
     
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post #953 of 4099
Quote:
Originally Posted by Arizonian View Post

Are you online multi-player BF3? Does it happen in a campaign offline? Have you tried other games?
I'm wondering if it's an internet connectivity issue rather than GPU.
IF your game is crashing, forefront would be too high of either a CPU or GPU over clock without being stable. Go to stock everything to verify.
IF you are at stock and it happens another could be PSU being maxed past peak performance (in your case the 650 is plenty) or it's starting to go bad and running higher output is causing it to fail occasionally. You'd have to do a PSU swap to find out for sure.
'Lost Signal' is not the typical response error when a GPU/PSU is failing or too high of an OC to my knowledge.
Usually it's a game freezing or black screen that a CTRL+ALT+DEL shut down in task manager can cure and sometimes same scenario but hard lock up with forced reboot to get back and running.
First I would try to eliminate easier verifiable causes.

I was online. The times that happened I was playing Operation Firestorm.

I've had no problems with other games.

The PSU is almost new. Everything is stock.

It might be a game and drivers problem.
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post #954 of 4099
Quote:
Originally Posted by xutnubu View Post

I was online. The times that happened I was playing Operation Firestorm.
I've had no problems with other games.
The PSU is almost new. Everything is stock.
It might be a game and drivers problem.

Yeah I'm going to lean either a driver or game bug. I wouldn't worry about it. smile.gif
     
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post #955 of 4099
Sorry guys,

I have betrayed you all !

Running a GTX670 now.
I must say though, the 7850's have giving me more satisfaction out of the box then this GTX670 frown.gif
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post #956 of 4099
I've had trouble getting my Sapphire 7850 OC to run.First it was mobo issue(Asrock z77).Card not recognised.Updated BIOS and getting a signal but when i installed Catalyst 12.2 CCC didn't show up and card is only recognised as standard VGA adapter.Am i missing something?Any help greatly appreciated.
post #957 of 4099
Quote:
Originally Posted by dkline View Post

I've had trouble getting my Sapphire 7850 OC to run.First it was mobo issue(Asrock z77).Card not recognised.Updated BIOS and getting a signal but when i installed Catalyst 12.2 CCC didn't show up and card is only recognised as standard VGA adapter.Am i missing something?Any help greatly appreciated.


You should try out 12.5 or the latest 12.6 beta smile.gif
12.2 is pretty old (February drivers)
post #958 of 4099
On their site i can only see 12.4 and a 0.5Mb 12.6Beta which looks to be only for crossfire.http://sites.amd.com/us/game/downloads/Pages/radeon_win7-64.aspx#1

Should i try 12.4 or should i be looking elsewhere for 12.5\6?
post #959 of 4099
Hey guys, first time posting here in this thread. Just got around to OCing my 7850 last night. I installed the Saphire Trixx program and Kombuster. Also using GPU-Z to monitor things. Reason I chose Trixx is that it is the only one that gave me control over the voltage. Only had time last night to run a few 5 min Kombustor stress tests on the core. Was able to get to 1135 with everything else at stock. I did set a custom fan profile but that was it. All I can say is wow. Not certain as to how stable that core is as 5 min on Kumbustor is certainly not the end all to stability but I am impressed with this card's ability to oc. will finish working on the core tonight and run a few more stress tests and then ultimately try it out on BF3 as the ultimate test. I did have Kumbuster crap out a few times after stopping it and restarting between runs but when I closed it and restarted it ran fine. Max temp was 50 degrees C with the fan at 55%.
post #960 of 4099
Quote:
Originally Posted by kazzjohnson View Post

Hello, I have a problem with overclocking my HD 7850. First of all, I didn't touch the voltage nor I intend to.
I tried setting core clock to 1050MHz, memory clock to 1450MHz, and power to +20% and I got some weird blue screen with vertical stripes as soon as I entered the game (Prototype, the actual game, not the menu).
Then I tried 1000MHz / 1400MHz / +20% and the same thing happened, not as soon as I entered, but after about 1 minute of playing.
Can anyone tell me what happened and why? The computer didn't freeze completely, I could still hear the sounds from the game, but the computer seemed unresponsive to keyboard (Ctrl+Alt+Del, Alt+Tab, Alt+F4 didn't do anything, at least I think because sound didn't change).

That is not how you oc. If you expect to just punch in a set of numbers and have it take then you really don't understand what your doing and should just set everything back to stock and enjoy your card. OCing involves systematically incrementally increasing each setting till you reach instability under stress and then back off to just below that point. As every piece of equipment and system is unique, everyone is going to have different results which is the fun of it. The journey is the adventure,not the destination.
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