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[Official] NVIDIA GTX 780 Ti Owner's Club - Page 1605

post #16041 of 16490
Quote:
Originally Posted by Psalamos View Post

Here's the latest from my attempts.

Any feedback is good feedback!!

looks good, You could probably push the core a little higher. But don't oc the mem though, it doesn't do much but add heat for minimal gains outside of benches. thumb.gif




On a separate note my second 780 ti will be here tomorrow, I've already taken the H75 off the Gigabyte card so I can use it on the Zotac until I can scrounge up the $400+ for a custom gpu only loop.
Edited by DR4G00N - 10/25/15 at 7:30am
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The Banshee
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post #16042 of 16490
I was having problems overclocking my gigabyte windforce 780ti on air after flashing with skyn3t bios using MSI Afterburner 4.1.1 but then I saw Drummer1976's post #16037 and followed the detailed instructions down to the letter.... it worked like a charm! Thank you Drummer1976!

But I must say that I am confused about certain variables when overclocking our graphics cards due to conficting advice from various sources::
1) Some advise that it is safe to simply max your power target/limit % slider all the way while others set the slider somewhere less. Does it make a difference? (I am on air capped at 1.21v)
2) TDP TDP TDP! Lots of iinterpretations as to what this is but I have gathered it is the maximum power at which your card can effectively dissipate the heat generated. Does "maximum power" refer to the core voltage, the power limit/target, both? What variables are used to determine the TDP% readout in the first place?? Is it okay for your TDP to be in the 9x% range when running Valley or is it preferable to be less???

My head has been swimming from information overload the past couple of weeks while researching to tweak my build, but I must say I am enjoying every bit of it. Thank you!
Edited by toonaddict - 10/25/15 at 9:20am
 
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post #16043 of 16490
final scores for firestrike after overclocks never hit above 60 degrees on either of the GPU's with the waterblocs and config I made smile.gif



post #16044 of 16490
Quote:
Originally Posted by DR4G00N View Post

looks good, You could probably push the core a little higher. But don't oc the mem though, it doesn't do much but add heat for minimal gains outside of benches. thumb.gif

Thanks for the feedback DR4G00N thumb.gif

I've set the mem back to default values and added another 3 x 13's to the core, bringing me up to 1242 Mhz seems good so far but havn't tested it in game yet.
As for the power target, should I just leave that alone or should I be setting that too? (not entirely sure what it does hence I left it)
    
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post #16045 of 16490
Quote:
Originally Posted by Psalamos View Post

Here's the latest from my attempts.

Any feedback is good feedback!!


You can likely hit about 1250 core, and forget the memory overclock. You *might* get a frame out of it. Be sure to set a custom fan step, for me I like to crank up to 80% when I hit 60 degrees, and 100% at 70 degrees. Dont care about the sound. Rather protect the card. It look like you didnt add and power limit, crank that baby up all the way. You are limited to the 1.212 volts - that is your hard number. Just let the card draw whatever it wants to run, as long as you have the power and mobo to handle it. Right now when you hit the 300 watt tdp (thats the 100% mark on the slider in skynet bios) your card will throttle. Open up its tdp, get the fans going, and run Valley bench. That renderer in GPUz is useless except to just get the clocks up.
    
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post #16046 of 16490
Quote:
Originally Posted by toonaddict View Post

I was having problems overclocking my gigabyte windforce 780ti on air after flashing with skyn3t bios using MSI Afterburner 4.1.1 but then I saw Drummer1976's post #16037 and followed the detailed instructions down to the letter.... it worked like a charm! Thank you Drummer1976!

But I must say that I am confused about certain variables when overclocking our graphics cards due to conficting advice from various sources::
1) Some advise that it is safe to simply max your power target/limit % slider all the way while others set the slider somewhere less. Does it make a difference? (I am on air capped at 1.21v)
2) TDP TDP TDP! Lots of iinterpretations as to what this is but I have gathered it is the maximum power at which your card can effectively dissipate the heat generated. Does "maximum power" refer to the core voltage, the power limit/target, both? What variables are used to determine the TDP% readout in the first place?? Is it okay for your TDP to be in the 9x% range when running Valley or is it preferable to be less???

My head has been swimming from information overload the past couple of weeks while researching to tweak my build, but I must say I am enjoying every bit of it. Thank you!

Just max out your power slider, that is what raises TDP ceiling in WATTS. Your hard limit is the 1.212 volts. Let the card take what it wants in watts as long as you have power and mobo to do it. Just beware running furmark, it will draw a LOT. 1.212 volts should provide a stable core ~1250 on average. With the throttling gone, and no boost, you can run a solit 1.212 volts and 1250 core, crank up those fans a bit too and dont let all the other stuff bother you. Theres not much more to know than that. Guru II is you best bet for that card. PX and AB just dont play nice with it.
    
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post #16047 of 16490
Can someone tell me why I simply cant flash 1250 core with all the other stuff in skynets bios and not bother using OC software? It seems (the driver?) blocks that? Im not sure, but I wish I could just flash my top stable overclock and say goodbye to OC softwares which are buggy as hell anyway.

I have tried it a few ways - bumping skynets core, and editing my own native bios, but when I reboot the card just wants to go to default values. Wont just run at 1250 on its own.
    
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post #16048 of 16490
Quote:
Originally Posted by Drummer1976 View Post

You can likely hit about 1250 core, and forget the memory overclock. You *might* get a frame out of it. Be sure to set a custom fan step, for me I like to crank up to 80% when I hit 60 degrees, and 100% at 70 degrees. Dont care about the sound. Rather protect the card. It look like you didnt add and power limit, crank that baby up all the way. You are limited to the 1.212 volts - that is your hard number. Just let the card draw whatever it wants to run, as long as you have the power and mobo to handle it. Right now when you hit the 300 watt tdp (thats the 100% mark on the slider in skynet bios) your card will throttle. Open up its tdp, get the fans going, and run Valley bench. That renderer in GPUz is useless except to just get the clocks up.

Thanks again for a brilliant explanation!
I understand fully what the power target is about now thumb.gif

I can set 1254.5 (1255) according to the +13 chart and go from there. I've reset the memory clock back down to it's default.
I'm limited on power due to my PSU being only 500W so I guess I have a new addition to my already growing shopping list!!
Motherboard is Asus Sabertooth 990FX R2.0 that should be fine to handle power I think, so it's really down to the PSU.
I have my fans set up to 60% at 50C, 80% at 60C and 100% at 70C already, based on your previous advice (thanks again).

I'll be taking a look at Corsair RM series PSU's when I get home from work today.

On that note, time to get my "driving coffee" done and get on the road, laters !!
    
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post #16049 of 16490
Quote:
Originally Posted by Psalamos View Post

Thanks again for a brilliant explanation!
I understand fully what the power target is about now thumb.gif

I can set 1254.5 (1255) according to the +13 chart and go from there. I've reset the memory clock back down to it's default.
I'm limited on power due to my PSU being only 500W so I guess I have a new addition to my already growing shopping list!!
Motherboard is Asus Sabertooth 990FX R2.0 that should be fine to handle power I think, so it's really down to the PSU.
I have my fans set up to 60% at 50C, 80% at 60C and 100% at 70C already, based on your previous advice (thanks again).

I'll be taking a look at Corsair RM series PSU's when I get home from work today.

On that note, time to get my "driving coffee" done and get on the road, laters !!

500w is too low. wait for a 750 + pwr in order to not fry ****. \This cardcan pull 400w plus
    
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post #16050 of 16490
Quote:
Originally Posted by Psalamos View Post

Thanks again for a brilliant explanation!
I understand fully what the power target is about now thumb.gif

I can set 1254.5 (1255) according to the +13 chart and go from there. I've reset the memory clock back down to it's default.
I'm limited on power due to my PSU being only 500W so I guess I have a new addition to my already growing shopping list!!
Motherboard is Asus Sabertooth 990FX R2.0 that should be fine to handle power I think, so it's really down to the PSU.
I have my fans set up to 60% at 50C, 80% at 60C and 100% at 70C already, based on your previous advice (thanks again).

I'll be taking a look at Corsair RM series PSU's when I get home from work today.

On that note, time to get my "driving coffee" done and get on the road, laters !!

Also i tried to put the high clock right in the flash... so I didnt have to use Guru. Didnt work. Card wont clock up to 1250 on just a flash. Seems to just go to default clocks if I do it. I want to just flash it and forget about the OC software!
    
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