Overclock.net banner

Gtx 970 ssc can't get artifacts during oc

769 views 14 replies 3 participants last post by  phreshxmetal 
#1 ·
Hello! So this is my first overclock and (yes I looked up pictures of artifacts so I know what to look for) while trying to overclock the memory, I never seem to get any artifacts in heaven benchmark
So far I'm at 3005 (+700)
Temp never goes above 66c on stock fan curve (auto enabled)
From what I've seen other people post, most are around +400 on the same card
Also, core is 1370 (+180) and still no artifacts or crashing
Weird thing to complain about, but what's going on?!
 
#2 ·
Check out the VRM temps with GPU-Z, if it's also 'safe' for you, i see no reason not to continue the increase and maybe add some voltage/power limit if you see you arre limited or finally see the 'awaited' artifacts lol.Don't go nuts on these though, you dont wanna fry a good OCing sample.
 
#3 ·
Head on over to the 970 owners thread in the NVIDIA section of the forum. You'll get alot of help there. Both my 970 ssc's are pushing 1570 core and 4000 memory on air with a custom bios. Stock bios just using OC software I was able to hit 1518 core and 4000 memory. Keep pushing, its a guessing game were you'll card will stop, but with a good card 1500+ core is easily attainable. And 4000 memory is also within reach, depending what type of memory you have.

Like I said head over to the owners thread and you'll get tons of help.
 
#8 ·
Alright, so your not at 3005MHz, your at 2103 which is 8412Mhz effective. That's a pretty high overclock and im thinking if you run firstrike you'll instantly see artifacts. Heaven benchmark loves memory overclocks which is why your not see artifacts yet. Id say back it off so your running 8000MHz effective (+500 in AB) and then run firestrike and see what happens. if you don't see artifacts up it by +25 increments until you do.

in all honesty if your stable at 8000MHz in firestrike id leave your memory alone and focus more on your core clock as youll see higher gains by increasing that then you will by increasing memory.

a screen shot of your GPU-z sensor readouts showing max in all the areas would be nice. simply click on the box with the numerical readout in it and it will switch it to min. reading then click again for max. that way i could see what your TDP is and what your perf cap is after running a benchmark.

heres an example of my max readings after running firestrike:



this is just to show you what i mean by the sensor readouts showing max. Pay no attention to my readings, im using a custom bios that midifies TDP, increases voltage and sets my core and memory clocks to a constant boosted state of 1518/4001. wich is also why my afterburner only shows +52 on the core clock.
 
#9 ·
Yeah looking back at what I posted I have no idea why I thought I had it at 3005mhz, I just have been sleepy
Haha
How do you figure the effective value? Did you just multiple by 4? I'm not seeing it in gpu-z
Anyway, I'll try all the stuff that you are suggesting and report back! Probably sometime on Monday
Thank you in advance, this is super helpful
 
#10 ·
Quote:
Originally Posted by phreshxmetal View Post

Yeah looking back at what I posted I have no idea why I thought I had it at 3005mhz, I just have been sleepy
Haha
How do you figure the effective value? Did you just multiple by 4? I'm not seeing it in gpu-z
Anyway, I'll try all the stuff that you are suggesting and report back! Probably sometime on Monday
Thank you in advance, this is super helpful
The main GPU-Z tab it will show you your memory clock for 1GB:


in the sensors tab it will show you memory clock for 2GB (give or take a couple MHz):


the card has 4GB of memory so either multiply the 1GB clock by 4 or multiply the 2GB clock by 2 and youll get your effective memory clock speed.

thats why on EVGA's website it lists the 970 SSC to have 7010MHz effective memory clock. but in GPU-Z it displays as 1752.5MHz(1753) default clock.

hope all that makes sense.
 
#11 ·
so for right now i briefly tried oc memory with core at +0 and was able to get it to run without artifacts at 425 and then i tried core oc and got it to +130 without any overvoltage but fire strike crashes after the demo with "an unkown error occured
returned error message DXGI call IDXGISwapChain::SetFullscreenState failed (-2005270494}:"

the only background apps running are steam, ab, and gpuz
 
#13 ·
Quote:
Originally Posted by johnd0e View Post

The main GPU-Z tab it will show you your memory clock for 1GB:


in the sensors tab it will show you memory clock for 2GB (give or take a couple MHz):


the card has 4GB of memory so either multiply the 1GB clock by 4 or multiply the 2GB clock by 2 and youll get your effective memory clock speed.

thats why on EVGA's website it lists the 970 SSC to have 7010MHz effective memory clock. but in GPU-Z it displays as 1752.5MHz(1753) default clock.

hope all that makes sense.
awesome that makes sense! thanks
 
#14 ·
@phreshxmetal alrite. first i need to correct myself. i previously said that the memory clock readout in GPU-Z's sensors tab was for 2GB of memory, i forgot that with a stock bios the sensors tab shows the same as the main GPU-Z tab. so in your case, just multiplay your memory clock by 4 to get your Effective.

anyways it looks like your card is wanting more power and voltage. looking at the last image of afterburner you posted your already at the stock bios limit of 110% power target, so your not going to be able to do anything about that unless you get a custom bios.

as for the voltage you can try maxing out your voltage slider(this wont hurt anything since your on stock bios and it will limit you to a safe value). however, by upping your voltage your going to increase heat, and seeing that your already at 71c you might bump up toward 80c and then youll start seeing instability from the temps...if its not already cuasing problems(thermal throttleing starts around 65c). id say give adding some voltage a try and if that doesnt yield you any gains then simply back it down to stock voltage and start reducing your clocks untill your stable again and that will be your limit on stock bios unfortunatly.

if you want to push your clocks harder i recomend going here

http://www.overclock.net/t/1573308/nvidia-gtx-900-cards-custom-bios-upon-request

and requesting a custom bios for your card.

also if you would like to recieve better, more frequent help i cant tell you how much i recomend going here

http://www.overclock.net/t/1514085/official-nvidia-gtx-970-owners-club

youll find all sorts of answers and the 970 crowd is very good people just looking to help each other out to reach their cards potentail.

thumb.gif
 
#15 ·
Quote:
Originally Posted by johnd0e View Post

@phreshxmetal alrite. first i need to correct myself. i previously said that the memory clock readout in GPU-Z's sensors tab was for 2GB of memory, i forgot that with a stock bios the sensors tab shows the same as the main GPU-Z tab. so in your case, just multiplay your memory clock by 4 to get your Effective.

anyways it looks like your card is wanting more power and voltage. looking at the last image of afterburner you posted your already at the stock bios limit of 110% power target, so your not going to be able to do anything about that unless you get a custom bios.

as for the voltage you can try maxing out your voltage slider(this wont hurt anything since your on stock bios and it will limit you to a safe value). however, by upping your voltage your going to increase heat, and seeing that your already at 71c you might bump up toward 80c and then youll start seeing instability from the temps...if its not already cuasing problems(thermal throttleing starts around 65c). id say give adding some voltage a try and if that doesnt yield you any gains then simply back it down to stock voltage and start reducing your clocks untill your stable again and that will be your limit on stock bios unfortunatly.

if you want to push your clocks harder i recomend going here

http://www.overclock.net/t/1573308/nvidia-gtx-900-cards-custom-bios-upon-request

and requesting a custom bios for your card.

also if you would like to recieve better, more frequent help i cant tell you how much i recomend going here

http://www.overclock.net/t/1514085/official-nvidia-gtx-970-owners-club

youll find all sorts of answers and the 970 crowd is very good people just looking to help each other out to reach their cards potentail.

thumb.gif
Ok I'll give that a shot and check those links out! I was worried that upping the voltage might shorten the life of the card, but that makes sense. Thanks so much for all the help
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top