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MSI 7850 Twin Frozr making me crazy !!

post #1 of 18
Thread Starter 
Ok , here's the specs ..

MSI Twin Frozr 2gb OC edition 7850 == 1.138v , 900/1200mhz

MSI Z77A-G45 motherboard
i7 2600 3.4
Cooler Master Hyper N530 cpu cooler ( 2 x 80mm fans )
Corsair Vengeance 1866 2x4gb ram
Ultra 650w power supply
Utra Defender Mid tower , 6x120mm fans
Seagate 1tb storge
Monster Daytona 120gb SSD

Windows and all software installed fresh on SSD with current hardware config.

All hardware is less than 6m old.

Trying to get the Vid card over clocked stable for 24/7 w/gaming profile BEFORE over clocking the CPU. Have tested OC on the cpu up to 4.1 very stable torture and gaming tested over 1hr runs < 65c

Case temp remains under 80 deg F ..

Have not seen vid card over 55 deg C


_______________________________________________________________________________

Here's the Issue I'm having when I over clock.

Started OC with Afterburner and Catalyst , newest versions .. Card driver 9.12.0.0

All OC's testing I tried started at 1.138v and 1100mhz gpu and 1450 mhz memory clocks.. 120% power target

With afterburner on the Furmark 720 preset benchmark I scored on average 3670 pts and 61 fps with these settings ..

I could also raise the settings slightly to 1150/1500 to a score of 3813 and 63 fps .. This wasn't 100% stable .. It was obvious that the card was starving for voltage ..

Using afterburner (with updated EULA to turn up allowable settings) , Catalyst I could not raise voltage above the 1.138v .. In click bios 2 I was able to raise the voltage to 1.225v but for some reason the card would not take it .. Afterburner , Catalyst , GPU Z and Furmark were all still running at 1.138v .. This was very frustrating ..

Things I tried ..
- Uninstalled / Reinstalled driver , catalyst and afterburner ..
- reflashed the MB bios , cleared the cmos and started settings from scratch.
- Tried updating the voltage and rebooting the computer several times .. It always stayed at 1.225v in the bios but would not actually run at that setting when testing.
- Tried setting afterburner to hold the settings when restarting and then not turning on afterburner after the restart thinking that possibly when I opened afterburner it was dropping the voltage.

No luck ..

SO , I installed ASUS GPU Tweek ..

WHAT LUCK ! turning on the advanced controls in asus tweek allowed me to adjust the voltage and it held the new voltage through restarts, benchmarking and testing .. The settings in asus allowed me a much larger range to work with ..

Problem -- benched with the following settings

1.138v - 1100/1450(5800) - 120 power // Furmark 720 bench -- 3581 pts 59 fps
upped settings to steadily all the way to ..
1.225v - 1250/1500(6000) - 120 power // Furmark 720 bench result on every setting all the way up to this was approx 3589 pts with 59 fps ..

There was no discernible increase in the bench marking .. The voltage and clocks confirmed active everywhere I could find them .. During the test , gpu z , msi control center ... But still I had no luck getting better bench scores..

Also tried sapphires trixx tool at different clocks and voltages and was never able to score higher than 3534 pts and 58 fps..

I'm at my witts end with it .. I KNOW that 1100/1450 at 1.138v still yields great performance, BUT I chose this card because of all the great documented cases of large headroom for OC and the positive results people had.

I'm not looking to set benchmarking records but I would like to have a good stable 24/7 gaming overclock around 1.225 / 1200 / 1500 (6k) .. and have the benchmark/performance show that increase vs 1100/1450/1.138v ..

Any suggestions ? I can screenshot and confirm any settings you might thing could attribute to this. .

Thanks so much !!

OCnet is amazing .. the stuff I've seen/found on here blows my mind.
post #2 of 18
you must know that not all card are the same. Some o/c better whereas, others don't. As for the voltages not being correct, did you try the modded Trixx utility as the normal one for me does'nt show either. Do let me know whether it worked
post #3 of 18
Thread Starter 
"Modded trixx utility" ?
post #4 of 18
Quote:
Originally Posted by StampedTees View Post

I'm not looking to set benchmarking records but I would like to have a good stable 24/7 gaming overclock around 1.225 / 1200 / 1500 (6k) .. and have the benchmark/performance show that increase vs 1100/1450/1.138v .. .


Imho thats way to much to expect. All you can expect is that the card is running on Stock. Everything else is a gift.
I for my part had 3 different 7850s (because of the DX9 Flickering bug). And to be honest if you test those cards in many games, spend a lot of time with them. You'll see that you hardly get this cards 100% stable with clockrates over 1100. It may work for some benchmarks, it even may work 2-3 hours of gameplay. But then sometimes you'll get a driver reset or stuff like that.

My advise to you - downclock your V-RAM. Most of time too high clocked vram is the reason when overclocking doesn't show any difference. You don't need to OC the V-ram at all. It hardly gives you a performance boost anyway.
Do you have Vsnc activated in your test or CCC (because you always get around 58fps)?

And do you check your temperatures after benchmarking or while benchmarking? 50° @ 1200mhz sounds like the best cooler ever.
Álso Furmark is a horrible tool for benchmarking, get heaven benchmark or 3d mark.
Edited by Stuttergame - 2/12/13 at 2:13am
post #5 of 18
Thread Starter 
SooooOOooo ,

You were totally right on a couple counts Shutter,

First (and this is embarrassing) v-sync was on.. was completely the problem with the frame rates never going up. Because it was on I was able to run those really high settings without heat or crashing ..

I switched to Heaven, I had downloaded it but was using Furmark because I had used it already so I had a good idea of what baselines to expect .. Heaven is much nicer ..

I unistalled everything related to the video card and started from scratch .. Installed CCC and adjusted it's settings .. I then restarted and installed Trixx and started working up the settings and benching to see what numbers it would make..

So this is the 2nd place you were right .. 1200/1500 was definitely ambitious .. No way I can get that to run 24/7 now that everything is free of V-sync.

I ran heaven with the stock settings .. however it comes is how I ran it ..

Stock settings on my 7850 were ..
1.138v // 900 gpu clock // 1200 mem clock // idle @ 22*C

Heaven Benchmark 69.3 fps // 1745 pts @ max of 47*C .. This was using all factory settings including the fan speed profile..
10 min of furmark stress test showed highest temp at 47* as well.

The testing went from there as follows ..
(all with 100% fan speed)

1.185v // 1000 // 1300 // 120 pwr ---> 76.4fps / 1925 pts / max 45*C
1.185v // 1100 // 1400 // 120 pwr ---> 82.9fps / 2089 pts / max 46*C // stress test max 53*C
1.225v // 1150 // 1450 // 120 pwr ---> 86.5fps / 2178 pts / max 47*C // stress test max 54*C

1.225v // 1200 // 1450 AND 1400 // 120 pwr ---> Both settings crashed Heaven Bench but Stress tested in Furmark for 10 min with max 55*C
1.225v // 1200 // 1350 // 120 pwr ---> Crash

1.225v // 1175 // 1300 // 120 pwr ---> 84fps

1.225v // 1175 // 1450 // 120 pwr ---> 86.7fps / 2184 pts / max 49*C

but then ..
1.225v // 1175 // 1500 // 120 pwr ---> 90.0fps / 2267 pts / max 48*C
That's a 44% perf increase over the stock bench no?

I tried a number of test after that increasing by small amounts here or there to see if there was anything else but it became very unstable .. no heat issues just crashing out of heaven or locking up ..

I know the temps all seem low .. my case does have 6 fans plus 2 cpu plus 2 gpu .. there's a ton of airflow .. the case is rarely more than 10*F over room temp .. With a heat gun the top temperatures I measured on the MB , CPU and RAM through the testing was close to room temp .. the back of the GPU never got over 45*C

Testing is in a basement .. 30% humid .. 63*F ish..

Here's a couple pics ..

Any idea's on increasing the stability of it all ? I've been reading the AMD how to thread .. Seems like Afterburner can get you some better results in some cases if installed correctly ..

Always open for advice ! : ) Thanks !!



You'll have to excuse the 8 pin cable running over the card/board .. had to order an extension.



post #6 of 18
Well that are a lot coolers. I still think 53°C at this Settings are a bit too low. But on the other side this readings are never 100% accurate anyway. How long did your stresstest go?

To be honest i don't think there is much more you can do to get your card stable.My advise is find out the highest settings you can run without crashing. If you found some settings which never crashed for you in any benchmark go back around 20mhz. I think thats the best way to get the card 100% stable. Because there is always a small amount of games where things are getting unstable.

For example i ran my card @1150/1200 1.133v for 6 months without any issues. I could play any big DirectX 11 game like Far Cry , Sleeping Dogs, Saints row 3 and Battlefield 3. Then last week i tried Dead Space 3 and it keept crashing and crashing. I had to go up to 1.800v and down to 1100/1200 to get it stable there.
Be happy with lower settings otherwise you'll spend your days with finding out stable settings again and again. And this will get very frustrating.

One last thing: Turn down the vram, it doesn't give you a great boost (you can test that by your own) and your card would appreciate it .

But of course it's just a advise. biggrin.gif
post #7 of 18
Thread Starter 
When I torture tested it I let it run 15 min .. Max I saw the whole time was 56c .. That was reading in fur mark , trixx and gpu z .. Monitored the other side of the board with a laser temp that I know to be accurate .. 45c tops .. The case is never much over 10*f so maybe I just got lucky with the twin frozr ..

Running 1100/1400-1450 as gaming setting @1.185v .. Otherwise 1k/1300 .. So far no crashing in D3 ..

Thanks for the help,

I tried afterburner again and it sucked .. Giving tweak one more try then I'll go back to trixx if its no better.
post #8 of 18
Quote:
Originally Posted by StampedTees View Post

When I torture tested it I let it run 15 min .. Max I saw the whole time was 56c .. That was reading in fur mark , trixx and gpu z .. Monitored the other side of the board with a laser temp that I know to be accurate .. 45c tops .. The case is never much over 10*f so maybe I just got lucky with the twin frozr ..

Running 1100/1400-1450 as gaming setting @1.185v .. Otherwise 1k/1300 .. So far no crashing in D3 ..

Thanks for the help,

I tried afterburner again and it sucked .. Giving tweak one more try then I'll go back to trixx if its no better.

GPU Tweak is allright. You just need to make your settings there and check the box for "keep OC-Settings for next start at close application". So you basicly can turn of the the tool and use a different tool like Hardwaremonitor for checking temperaturs. Thats what i do.
post #9 of 18
You shouldn't try overreaching with an msi card imo. Msi uses tantalum capacitors which are great for keeping leak under control. They run cooler and using less power than their opponents; however the less gpu's leak, the less you can overclock them.
The voltage issue may be related with the recent "power" edition which I recall might have been voltage disabled, too.
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post #10 of 18
Just because one 7850 can do a clock speed does not mean all can. My 7970 is 1200/1600 but there is a guy here with the same card rocking 1300/1800. On air no less. I could go a little higher but for the voltage it didn't seem worth it. You gotta just go up 10 - 20mhz at a time, and find your place. Once it stops being stable, increase voltage .01 at a time till its stable. GPU are much easier to OC than cpu/ram.
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