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[Official] NVIDIA GTX 970 Owner's Club - Page 1925

post #19241 of 26263
Quote:
Originally Posted by Vellinious View Post

Wattage...not voltage. Completely different animal. And yes, you can pull 150 from a 6 pin, just like you can from an 8 pin.
I thought i remember reading that what a PSu can and cant do on a 6 pin is limited by what gauge wires used? Regardless if I mixed wattage and voltage up, do you think its something on his card not allowing 150watts per pin on the 6 pin input to the card?
post #19242 of 26263
Quote:
Originally Posted by Xeno1 View Post

I thought i remember reading that what a PSu can and cant do on a 6 pin is limited by what gauge wires used? Regardless if I mixed wattage and voltage up, do you think its something on his card not allowing 150watts per pin on the 6 pin input to the card?

I really kinda doubt that....it's possible, but....I have basically the same card, and I don't have that limitation.
post #19243 of 26263
Well.....my memory isn't 100%....so I can't claim if it was under load or not. I want to say I was running the Intel Extreme Tuning.

I posted that back in like April. There was another OC Moderator that was having this discussion. I'm not sure if it was in this thread or not.

I will make a run of Firestrike and see what it is pulling. It will be tomorrow before I can do it.

Here is the link for the Moderator:
http://www.overclock.net/t/1514085/official-nvidia-gtx-970-owners-club/15050#post_23845461

Here is my original post:
http://www.overclock.net/t/1514085/official-nvidia-gtx-970-owners-club/15100#post_23854837
Edited by Hequaqua - 10/17/15 at 7:45pm
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post #19244 of 26263
Please try to give us some numbers when the Gpu and the CPU are both under full load.
post #19245 of 26263
Yeah....I'm having a hard time believing that. I just can't see it. A mildly overclocked 970 can pull 190 watts pretty easy. With a custom bios it's not unheard of to run almost 300, sometimes a little more.
post #19246 of 26263
Quote:
Originally Posted by Vellinious View Post

I really kinda doubt that....it's possible, but....I have basically the same card, and I don't have that limitation.
So are saying that we can disregard the supposed power limits by changling the Bios to accept more wattage on the 6 pin inputs? I mean is the allowed power through the 6 pin connectors only limited by the Bios settings and not something else on the card?
post #19247 of 26263
Quote:
Originally Posted by Xeno1 View Post

So are saying that we can disregard the supposed power limits by changling the Bios to accept more wattage on the 6 pin inputs? I mean is the allowed power through the 6 pin connectors only limited by the Bios settings and not something else on the card?

The only difference between a 6 pin and an 8 pin is 2 ground wires (thank you MrDark). In fact, most of the 6 pins ARE 8 pins (6+2). I'd wager that as long as you're using a 6+2, it's all good. Now, that's not saying that you can't pull more than 75 watts from a straight 6 pin, because if you look in the stock bios file for a 970 FTW, they have you pulling 79500 from each 6 pin from the get go.

My bios file is set up to pull 120 from each 6 pin and 80 from the PCIe slot. My TDP is set to 310, and the power limits are set to 270 and 310 with the slider at max. If I don't push the slider all the way up during my benchmark runs, I hit the power limit pretty hard. My cards are pulling right at 290 watts. That wouldn't be possible if I couldn't pull more than 75 watts from a 6 pin. 75+75+75=225
Edited by Vellinious - 10/17/15 at 8:07pm
post #19248 of 26263
Quote:
Originally Posted by Vellinious View Post

The only difference between a 6 pin and an 8 pin is 2 ground wires (thank you MrDark). In fact, most of the 6 pins ARE 8 pins (6+2). I'd wager that as long as you're using a 6+2, it's all good. Now, that's not saying that you can't pull more than 75 watts from a straight 6 pin, because if you look in the stock bios file for a 970 FTW, they have you pulling 79500 from each 6 pin from the get go.

My bios file is set up to pull 120 from each 6 pin and 80 from the PCIe slot. My TDP is set to 310, and the power limits are set to 270 and 310 with the slider at max. If I don't push the slider all the way up during my benchmark runs, I hit the power limit pretty hard. My cards are pulling right at 290 watts. That wouldn't be possible if I couldn't pull more than 75 watts from a 6 pin. 75+75+75=225

yeah all that makes sense, I guess I am not making myself understood. The question is - "is the allowed power through the 6 pin connectors only limited by the Bios settings and not something else on the card?"
post #19249 of 26263
Quote:
Originally Posted by Xeno1 View Post

yeah all that makes sense, I guess I am not making myself understood. The question is - "is the allowed power through the 6 pin connectors only limited by the Bios settings and not something else on the card?"

I'm sure there's a hard limit somewhere along the line, but so far, we haven't found it.
post #19250 of 26263
aha. So in theory someone could set his Bios to allows for more power than some bit of hardware on the card will allow. He may even have a PSU can easily provide all the power he needs by 2 times. The card is just not allowing the wattage he thinks he is getting. he runs into perfcaps power, Looks at his Bios which allows for 400 watts and assumes his card is super power hungry when in fact something on his cards besides the Bios settings are not allowing him to draw the wattage he thinks he is?
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