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[Official] NVIDIA GTX 970 Owner's Club - Page 2002

post #20011 of 26261
Quote:
Originally Posted by Vellinious View Post

It's essentially the same thing as the 3975 I think....iirc, anyway.

NOt quite. the power phases and pins. Diffenent cooler differnent PCB. 3975 has a mosfet cooling plate. etc Its a superior card, but in my case, with a low ASIC and a chip that wont go over 1.275 1540, and "inferior" SKU with a better chip would matter more.

Interesting to note- Death Angels scores were very similar to mine under benches. And his Asic is higher too. I really dont think the 8/8 pins or 6/8 pins or one 6 pin is the issue so much becuase if you get a really crappy ASIC like me, and you are not hitting power limit, the extra watts I can get are not being used anyways becuase of the voltage lock. I dont need 2 8 pins. one 6 and one 8 is more than enough. I cant make this card a power limit under this Bios becuase the card is refusing to go over 1.275 apparently. Power phases are also not likley to be an issue if your ASIC is high enough as well.
Edited by Xeno1 - 11/6/15 at 5:36pm
post #20012 of 26261
EVGA does take cards off that list that are discontinued. I have owned 5 EVGA GTX 970's and about 30 EVGA cards total. It's not like I'm a fanboy though.

    
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post #20013 of 26261
Quote:
Originally Posted by Xeno1 View Post

NOt quite. the power phases and pins. Dont know about build quality.

Interesting to note- Death Angels scores were very similar to mine under benches. And his Asic is higher too. I really dont think the 8/8 pins or 6/8 pins or one 6 pin is the issue so much becuase if you get a really crappy ASIC like me, and you are not hitting power limit, the extra watts I can get are not being used anyways becuase of the voltage lock. I dont need 2 8 pins. one 6 and one 8 is more than enough. I cant make this card a power limit under this Bios becuase the card is refusing to go over 1.275 apparently. Power phases are also not likley to be an issue if your ASIC is high enough as well.

6 pins...8 pins....doesn't matter, as long as there are two of them. They can draw the same power. The only difference between them, is 2 ground wires. (Thanks Mr. Dark)

The only 970s that are severely gimped outright, are the STRIX 970s. Speaking in terms of very high overclocks, mind you...and not the mild overclocks most people get.
post #20014 of 26261
Quote:
Originally Posted by Vellinious View Post

6 pins...8 pins....doesn't matter, as long as there are two of them. They can draw the same power. The only difference between them, is 2 ground wires. (Thanks Mr. Dark)

The only 970s that are severely gimped outright, are the STRIX 970s. Speaking in terms of very high overclocks, mind you...and not the mild overclocks most people get.

I hear you on the cables, but there are hardware on the cards that limit the watts coming in as well right? We were talking about this before, and the question was if the BIOS was the only limiting factor in how many watts you could pull.

I email EVGA and messaged the resident EVGA guy on this forum and have not gotten a satisfactory answer in 3 weeks.
post #20015 of 26261
Quote:
Originally Posted by Xeno1 View Post

I hear you on the cables, but there are hardware on the cards that limit the watts coming in as well right? We were talking about this before, and the question was if the BIOS was the only limiting factor in how many watts you could pull.

I email EVGA and messaged the resident EVGA guy on this forum and have not gotten a satisfactory answer in 3 weeks.

If it's limited on the ACX 2.0 cards via hardware, it can't be by much. I have my 2 x 6 pins pulling 120 each max, and the PCIe slot pulling 80 max. They're pulling right at 293 watts each card...I know this for sure, because if I set the power limit below 293, the power limit throttle.

The ACX 2.0+ cards have the better power phase and the higher stock power limits...so I can't imagine they'd be limited at less than the ACX 2.0 cards. /shrug

But to answer your question....yes, there are shunts on the GPU that regulate the power that the GPU receives.
post #20016 of 26261
ty. what is your asic on your better card?
post #20017 of 26261
Discussed on those threads, the card can and will boost to its max stable boost clock which average is 1400~ the problem is that once you get under heavy load and tdp reach the limit the core would fluctuate a lot, down to 1110 and so, while other cards don't have this problem, at most they would just drop 13mhz once they hit 72ºC, the major problem is that having just a 4+2 power phases not even increasing the tdp on the bios helps let alone increasing the pci-e power, which is exactly the problem DeathAngel74 is facing.

http://www.overclock.net/t/1516121/gtx-970-comparison-strix-vs-msi-gaming-vs-gigabyte-g1/620
http://www.overclock.net/t/1533856/evga-gtx-970-ftw-changes-to-the-original-ftw/40
http://www.overclock.net/t/1522035/evga-970-ftw-tdp-issues-requires-bios-mod-to-fix/90

There are also some discussion on the EVGA forum but I'm sure you won't like to take those in consideration since they are from the EVGA forums...


This is why EVGA released the new SSC with 6+2 power phases, the first batch of the 6+2 card actually came with the 4+2 bios, which caused the same exactly problem and later was addressed with a bios update which also added the no fan policy below 60ºC, sadly you can't download the bios update from the evga forums anymore but you can find those bios in techpower up and in some are also in here.


This is also can be somewhat recreated by cloning the EVGA bios settings into another bios and flashing into a card like a G1 970, it isn't exactly the same but it can somewhat showcase what the problem is.

I also found this, https://www.reddit.com/r/nvidia/comments/2xds25/do_not_buy_a_evga_970_ssc_from_bestbuy/
post #20018 of 26261
Quote:
Originally Posted by ValValdesky View Post

Discussed on those threads, the card can and will boost to its max stable boost clock which average is 1400~ the problem is that once you get under heavy load and tdp reach the limit the core would fluctuate a lot, down to 1110 and so, while other cards don't have this problem, at most they would just drop 13mhz once they hit 72ºC, the major problem is that having just a 4+2 power phases not even increasing the tdp on the bios helps let alone increasing the pci-e power, which is exactly the problem DeathAngel74 is facing.

http://www.overclock.net/t/1516121/gtx-970-comparison-strix-vs-msi-gaming-vs-gigabyte-g1/620
http://www.overclock.net/t/1533856/evga-gtx-970-ftw-changes-to-the-original-ftw/40
http://www.overclock.net/t/1522035/evga-970-ftw-tdp-issues-requires-bios-mod-to-fix/90

There are also some discussion on the EVGA forum but I'm sure you won't like to take those in consideration since they are from the EVGA forums...


This is why EVGA released the new SSC with 6+2 power phases, the first batch of the 6+2 card actually came with the 4+2 bios, which caused the same exactly problem and later was addressed with a bios update which also added the no fan policy below 60ºC, sadly you can't download the bios update from the evga forums anymore but you can find those bios in techpower up and in some are also in here.


This is also can be somewhat recreated by cloning the EVGA bios settings into another bios and flashing into a card like a G1 970, it isn't exactly the same but it can somewhat showcase what the problem is.

I also found this, https://www.reddit.com/r/nvidia/comments/2xds25/do_not_buy_a_evga_970_ssc_from_bestbuy/

You aren't listening, jr. An updated bios is all that's needed to fix the power limit issues on the EVGA cards. It's been done...A LOT. I did it myself. The fact that Dark is having power limit issues at 1500+, does not in any way, shape or form, tell me that they can't run stock clocks without hitting a power limit perf cap. All it really tells me, is that Dark got unlucky, and either had that low % of cards that just don't overclock very well, OR, that his card was somehow borked.

My EVGA ACX 2.0 cards, with a stock bios, would hit the power limit of 187 watts with a 1500ish overclock. I raised the power limits in the bios, kicked the voltage up to 1.275v, and am running 1600+ clocks in every benchmark run I do, and NEVER hit a power limit. They're both pulling right at 290 watts.

Now....if you're going to continue on this path, without even considering the evidence, other than what you read about cards with STOCK BIOS files, then I'm just going to ignore you...because I just don't have time for your ignorance.

There....all better. lol

And...btw....if you look back at one of my previous posts, I put a link from the EVGA forums talking about the power limits, and how to solve them. I responded quite frequently in it, because I do browse those forums occasionally for entertainment purposes. lol
Edited by Vellinious - 11/6/15 at 5:57pm
post #20019 of 26261
nevermind lets drop it
post #20020 of 26261
It's like magic....

290 watt power limit....power limit throttle


310 watt power limit....no power limit throttle
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