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[Official] NVIDIA GTX 980 Owner's Club - Page 289

post #2881 of 10534
Quote:
Originally Posted by Axon View Post

Im using a 750W PSU with dual GTX 980's overclocked to 1469MHz core and 2009MHz memory no problems what so ever

Quote:
Originally Posted by MattBee View Post

No def not. A 750w is still plenty good enough. I oc my g1 to 1520 1.25v and my 4770k to 4.9ghz. few hdds and fans. Still got power to spare. So your def good.

Quote:
Originally Posted by looniam View Post

SHUTDOWNS are a PSU problem.

CRASHING is a OC/driver problem.
im only asking because im using only one 8pin and the other is converted over a 6pin.

So im not using the full 2x8pin power as the G1 is designed for.
post #2882 of 10534
Quote:
Originally Posted by Smokey the bear View Post

Ahh ok, I'm being a bit paranoid about my scores. I think some of the difference could be from me using Windows 8?

It is weird though that I get 1 fps less in Heaven with 1530/4158 than with the core at 1575 but precision does report a solid 1575 all the way through. Perhaps regardless of what's being reported I'm still not seeing performance beyond 1540 ish.

Yep, I'm on Win7, so there's another couple fps difference there. Not to mention differences in system RAM and uncore overclock. Plus some variance run to run. The score for 1575 is fine, with perfect scaling it could only net you ~3% more fps.
Quote:
Originally Posted by thuNXa View Post

Will get my blocks tomorrow or in 2 days.
Got 2 in SLI.
#1 1548/2140
#2 1506/1900

#1 doesnt like any overvoltage, at least on air.
yes, thats what i say. smile.gif

Is there a trend with higher clockers not liking overvoltage? I definitely need overvoltage to hit the peak of 1531 on mine.
post #2883 of 10534
Hey folks, I was wondering if someone could shed some light on discrepency between GPU-Z boost clock readings and what is being actually reported as the boost clock when doing benchmarks.

This is regarding an MSI GTX 980 Gaming 4G w/ TWIN FROZR cooler:

You'll see below my Afterburner settings. This is about as far as I could get with stability. Pushing it much more, the driver crashes after a couple benchmarks.



Now, here is what then gets reported in GPU-Z with the Afterburner settings above (also worth noting my ASIC Quality is 74.1%):



So, GPU-Z says that my boost is only 1484 MHz, but, when running benchmarks, it appears to get up to 1547:



Does anyone know why these boost clock readings (highlighted in red border) are different? Why isn't GPU-Z indicating the higher number?

Also, since this is for the custom MSI GAMING 4G model, how do these numbers compare to you folks with reference model - are these good numbers?

Thanks!
post #2884 of 10534
So how do you read this?

I asked this same question a few days ago but I think I need to refrase it. Do you read the oc on the core clock as 1. base clock 1126.5 + 272 = 1399 or 2. boost 1216 + 272 = 1488 or 3. taking the number from afterburner saying max core 1614. If 3. Cool! but where is that number coming from? My asic is 86.2% on a referance Gigabyte 980. 4770k oc to 4.5, moniter is an old 37" 720p tv I can oc to 1080 at 60 hz. Just looking for a little improvement on my gpu OC. Thanks RKD.
post #2885 of 10534
Quote:
Originally Posted by RKDxpress View Post

So how do you read this?

I asked this same question a few days ago but I think I need to refrase it. Do you read the oc on the core clock as 1. base clock 1126.5 + 272 = 1399 or 2. boost 1216 + 272 = 1488 or 3. taking the number from afterburner saying max core 1614. If 3. Cool! but where is that number coming from? My asic is 86.2% on a referance Gigabyte 980. 4770k oc to 4.5, moniter is an old 37" 720p tv I can oc to 1080 at 60 hz. Just looking for a little improvement on my gpu OC. Thanks RKD.

Wow, nice thumb.gif

My EVGA SC 980 is poor. ASIC is only 67.1% Max I can go is 1507 redface.gif

I have never ever got a good GPU or CPU. Sigh.
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post #2886 of 10534
The ASIC values for my four EVGA SC GTX 980s are as follows:

1. 70.8%
2. 70.7%
3. 73.4%
4. 71.0%

Not sure if these are average, above average, or below average.
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post #2887 of 10534
I just had a thought, so I need to ask to see if anyone has done this yet. Or is there anything in the 900 series manual that states you can't do this.

The 6-pin and 8-pin PCIe connectors have the same key structure, so usually you can plug a 6 pin into the 8 pin connector and it will work fine, but only provide the max of 75 watts, which will prevent overclocking. However, some cards know that you only plugged a 6 pin in and will not even run because they may be overclocking models and thus force the 8 pin rule.

http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress

So, my question is has anyone had success using only the 6 pin from there PSU's on the 980's with 8 pin connectors as of yet? If I am limited to no overclocking I would be perfectly OK with that, as the reference cards prove. Again, I'm only using a 1440p monitor so I do not think the extra power would be needed. I do not want to buy new 8pin cables when I am already using very nice 6pin cables on a 1kW PSU.

Thanks
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post #2888 of 10534
Really Newegg?!?!?! I ordered friday around 2:45... (cst) and its still "Packaging" and i ordered overnight, with rush processing... /cry

Never had them not ship monday after ordering friday, especially with shipping option with rush selected.. any reason to worry?
Edited by theMillen - 10/20/14 at 7:32pm
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post #2889 of 10534
Quote:
Originally Posted by }SkOrPn--' View Post

ISo, my question is has anyone had success using only the 6 pin from there PSU's on the 980's with 8 pin connectors as of yet? If I am limited to no overclocking I would be perfectly OK with that, as the reference cards prove. Again, I'm only using a 1440p monitor so I do not think the extra power would be needed. I do not want to buy new 8pin cables when I am already using very nice 6pin cables on a 1kW PSU.

Thanks

Having 6 and 8 pin connectors is more a way for the PSU manufacturers to differentiate which units they sell are capable of running power hungry video cards than the actual ability of the connectors to supply power. The 6 pin connector is perfectly capable of supplying 150W of power which is why most PSUs now have 6+2 connectors.

The card may limit power draw with only a 6 pin plugged in though so you may need a 8 pin adapter to get around that.
post #2890 of 10534
Quote:
Originally Posted by seithan View Post



im only asking because im using only one 8pin and the other is converted over a 6pin.

So im not using the full 2x8pin power as the G1 is designed for.

It should be fine for the 2 cards overclocked no issue. Saw a youtube video where they were testing 2/3/4 way SLi on the 980's and even with 4 cards at full tilt they said their systems power draw only hit very low 800 watts a few times.

Link to the video I mentioned here.

*Edit*
Misread what you were discussing. Anyway leaving it for others that might want to see the power uses of multiple cards.
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