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Weirdest problem with 7950?? Monitors Turn off?

post #1 of 22
Thread Starter 
Well, after getting in my Powercolor 7950 Monday afternoon I slapped it in and away I was, or so I thought....

Everything seemed fine at first. I had uninstalled Nvidia drivers, put in the new 7950, and downloaded and installed newest AMD drivers. Rebooted and hook up all x3 of the monitors and CCC detected them and I was able to make eyefinity display. Everything was fine and dandy till I loaded up a game.

First game I loaded was BF3, It would go fullscreen, and my monitors would shut off and read "No video" then a second later come back on, and would keep doing this until I finally power cycled my machine.Same with Counter Strike Souce. Also I would try to reboot and one monitor wouldn't be on (despite CCC seeing it), the only way I could get it to see all three monitors was to pull the "sleeping" display off the graphics card and replug it in.

Thinking that this was a problem with maybe one of the adapters provided with the card (mini DP to DP or HDMI to DVI) I tried just with one monitor. Started BF3 and it loaded fine, played roughly 15-20 minutes and hard lock up.

At this point I thought I had got a bad card. But to rule out any other problems, I took my i7 920's clock back down to 2.66Ghz, reinstalled W7 with SP1, loaded my drivers (used the drivers on Disc for my Powercolor 7950) and hooked up my displays.

So far working flawlessly, It blanked out the screens once within the first 30 minutes of playing BF3, and worked fine for the next 4-5 hours...


Think this was all just a driver issue??
Edited by swat565 - 2/29/12 at 12:32pm
post #2 of 22
Thread Starter 
And now Its begun again....My displays will all go black for about 1.5 seconds and come back on... just did it three times fairly close to eachother right after bootup?
post #3 of 22
Do you have any errors in the Windows Event Logs? What about your temps, are your temps okay?

I don't have a 50, but I do have a PowerColor 7970, and the only time I ever experienced what you're describing was when I was overclocking and my card didn't have enough core voltage. I know this may just be a wild guess (make sure your temps are okay first on the GPU, if you haven't already), but try enabling the +20% within Power Control Settings in CCC, under overdrive and see if it persists.
Edited by svthomas - 2/29/12 at 1:17pm
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post #4 of 22
Thread Starter 
Quote:
Originally Posted by svthomas View Post

Do you have any errors in the Windows Event Logs? What about your temps, are your temps okay?
I don't have a 50, but I do have a PowerColor 7970, and the only time I ever experienced what you're describing was when I was overclocking and my card didn't have enough core voltage. I know this may just be a wild guess (make sure your temps are okay first on the GPU, if you haven't already), but try enabling the +20% within Power Control Settings in CCC, under overdrive and see if it persists.

I'll give this a try
post #5 of 22
Thread Starter 
I rolled back drivers to previous version and did 20% voltage bump in CCC.

So far so good.
post #6 of 22
Hmm. If you have GPU-Z installed, would you mind clicking on the little card icon in the top left corner of th GPU-Z utility, and then going to Read ASIC Quality. I am curious about what the ASIC quality is for your gpu, because if the power bump helps, and the asic percentage is low, that may help explain what's going on. Just thinking aloud.
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post #7 of 22
Thread Starter 
Quote:
Originally Posted by svthomas View Post

Hmm. If you have GPU-Z installed, would you mind clicking on the little card icon in the top left corner of th GPU-Z utility, and then going to Read ASIC Quality. I am curious about what the ASIC quality is for your gpu, because if the power bump helps, and the asic percentage is low, that may help explain what's going on. Just thinking aloud.

says 72.2%. I'm interested in hearing anything, Whats bugging me most is what the heck is going on redface.gif


Heres CCC info:
573
Edited by swat565 - 2/29/12 at 8:35pm
post #8 of 22
I don't claim to be an expert in this, by any means (just learned this myself), but this is how I understand it.

I am assuming the increase in power helped, and if so, this will probably apply:

This is my take on your issue: Your GPU needs more power(voltage).

My attempt at explaining why:

72% means you need more core voltage (than normal) to handle stock clocks than cards with a higher asic percentage. That is probably why increasing the voltage (the +20% Power in CCC) will help you with your screen flashing issue. It sounds like your GPU needs just a tad more power (core voltage) to remain stable, hence the screen flashing.

Here is a chart showing the voltages:
Quote:
up to 2F90 (up to 75% quality) - 1.1750V
up to 34D0 (up to 80% quality) - 1.1125V
up to 3820 (up to 85% quality) - 1.0500V
up to 3A90 (up to 90% quality) - 1.0250V

So with that chart in mind, you need 1.1750V at stock clocks to remain stable (maybe even a hair more since you're at 72%). So if the +20 percent in CCC is working to solve your issue, this is why.

This is my 7970's ASIC value:

266

What this is telling me is that I have an ASIC quality that requires my GPU to have 1.1125V @ stock to be stable. In other words, I have a 1.112V Graphics Processor Type. So default voltages will be lower, power consumption will be lower, overstocking on the stock air cooler will give me a higher clock, but on watercooling, I will get a lower clock when compared so a card with a lower ASIC quality value. Now this would be great news if I were on air, but since I am water, it's not so great. :/

So what your ASIC value means to you is that you're slightly lower than 75%, so your Graphics Processor Type is a 1.1750V, if not a hair more voltage.

If I were you, I would get MSI Afterburner so that you have more control over the exact core voltage. If you do get MSI AB, unlock the voltage control, and make sure you have your Graphics Processor Type selected properly. This is how I have mine set:
700

Then, if it turns out that you need just tad more mV to get to 'true' stable, you can increase it little with the slider on the main page. Then if you decide to overclock, you're all set, and can just go from there.

Now one must ask the question on whether this is worth it--it certainly isn't normal to need to do this for stock clocks, this would normally only be something you'd be concerned about and doing when overclocking, since you'd be re-doing all this stuff manually for your 'new' over-clocks. Should you RMA? That's up to you. If you're going to stay on air, it may be worth an RMA to try your luck at getting a GPU with a higher ASIC percentage so you're running cooler and have lower voltages. If you're going to water, it may be a different story since you may have a GPU that could reach really high clocks because you can give it insane voltages, then it's just a matter of keeping it cool. haha.

Or, if the CCC method of +20% is working out well, you could just leave it.
Edited by svthomas - 3/1/12 at 12:17am
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PowerColor 7970 ref. (Backup card...) 16 GB Corsair Vengeance PC3 12800 Seagate Barracuda 1TB 7200RPM Crucial 128GB M4 SSD 6Gb/s 
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AMD PII Rig
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AMD FX 8120 @ 4.8Ghz ASUS Sabertooth 990FX MSI Geforce GTX680 #1 MSI Geforce GTX680 #2 
GraphicsRAMHard DriveHard Drive
PowerColor 7970 ref. (Backup card...) 16 GB Corsair Vengeance PC3 12800 Seagate Barracuda 1TB 7200RPM Crucial 128GB M4 SSD 6Gb/s 
Optical DriveCoolingCoolingCooling
None PrimoChill PrimoFlex PRO LRT Tubing 1/1" ID 3/4... Swiftech MCP655 Koolance VID-NX680 
CoolingCoolingCoolingCooling
Koolance VID-NX680 Danger Den Monsoon D5 Bay Reservoir Enzotech Compression Fittings Scythe Gentle Typhoon AP-15 x4 
CoolingCoolingOSMonitor
EK-Supreme HF XSPC RX480 Win 7 Ultimate 64bit Acer 23" 1080p S232HL #1 
MonitorMonitorKeyboardPower
Acer 23" 1080p S232HL #2 Acer 23" 1080p S232HL #3 Razer BlackWidow Ultimate Mechanical Keyboard Seasonic X750 Gold 
CaseMouseMouse PadAudio
Danger Den 26  Razer Deathadder My cat, or other small, furry creatures. Creative Sound Blaster X-Fi Titanium 
Audio
Sennheiser HD555 Headphones 
CPUMotherboardGraphicsRAM
AMD Phenom II 955 Black Edition ASUS Crosshair iv Formula SAPPHIRE Radeon HD 6950 2GB (unlocked) - ref Corsair Vengeance 8GB (2 x 4GB) 
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Seagate Barracuda 1TB 7200RPM None NZXT havik Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
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post #9 of 22
Thread Starter 
Quote:
Originally Posted by svthomas View Post

I don't claim to be an expert in this, by any means (just learned this myself), but this is how I understand it.
I am assuming the increase in power helped, and if so, this will probably apply:
This is my take on your issue: Your GPU needs more power(voltage).
My attempt at explaining why:
72% means you need more core voltage (than normal) to handle stock clocks than cards with a higher asic percentage. That is probably why increasing the voltage (the +20% Power in CCC) will help you with your screen flashing issue. It sounds like your GPU needs just a tad more power (core voltage) to remain stable, hence the screen flashing.
Here is a chart showing the voltages:
So with that chart in mind, you need 1.1750V at stock clocks to remain stable (maybe even a hair more since you're at 72%). So if the +20 percent in CCC is working to solve your issue, this is why.
This is my 7970's ASIC value:
266
What this is telling me is that I have an ASIC quality that requires my GPU to have 1.1125V @ stock to be stable. In other words, I have a 1.112V Graphics Processor Type. So default voltages will be lower, power consumption will be lower, overstocking on the stock air cooler will give me a higher clock, but on watercooling, I will get a lower clock when compared so a card with a lower ASIC quality value. Now this would be great news if I were on air, but since I am water, it's not so great. :/
So what your ASIC value means to you is that you're slightly lower than 75%, so your Graphics Processor Type is a 1.1750V, if not a hair more voltage.
If I were you, I would get MSI Afterburner so that you have more control over the exact core voltage. If you do get MSI AB, unlock the voltage control, and make sure you have your Graphics Processor Type selected properly. This is how I have mine set:
700
Then, if it turns out that you need just tad more mV to get to 'true' stable, you can increase it little with the slider on the main page. Then if you decide to overclock, you're all set, and can just go from there.
Now one must ask the question on whether this is worth it--it certainly isn't normal to need to do this for stock clocks, this would normally only be something you'd be concerned about and doing when overclocking, since you'd be re-doing all this stuff manually for your 'new' over-clocks. Should you RMA? That's up to you. If you're going to stay on air, it may be worth an RMA to try your luck at getting a GPU with a higher ASIC percentage so you're running cooler and have lower voltages. If you're going to water, it may be a different story since you may have a GPU that could reach really high clocks because you can give it insane voltages, then it's just a matter of keeping it cool. haha.
Or, if the CCC method of +20% is working out well, you could just leave it.

Wow, thanks for the detailed post +rep

Yeah my GPU was running roughly around 1.03v before, which is WAY under that. After bumping it up to even 1.10v its become rock solid stable, I haven't had 1 issue. Honestly I feel this is more Powercolor's fault with flashing this card out of spec....I'll make sure to bump the voltage up if I have any problems again.

I'll make sure to keep it in nice condition and keep the box. I'm probably not going to RMA atm due to wanting my card over spring break. But when school starts back up I won't be missing it very much...
post #10 of 22
Thread Starter 
Quote:
What this is telling me is that I have an ASIC quality that requires my GPU to have 1.1125V @ stock to be stable. In other words, I have a 1.112V Graphics Processor Type. So default voltages will be lower, power consumption will be lower, overstocking on the stock air cooler will give me a higher clock, but on watercooling, I will get a lower clock when compared so a card with a lower ASIC quality value. Now this would be great news if I were on air, but since I am water, it's not so great. :/

Wanna trade /joking tongue.gif
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