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[Official] NVIDIA GTX 780 Owner's Club - Page 1774

post #17731 of 24918
Quote:
Originally Posted by anubis1127 View Post

So far I have noticed no performance increase coming from 334.67, if anything OpenCL performance is slightly worse so far.  Need to do more testing.

BF4 seems exactly the same to me, I was also running the beta 334 driver.
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post #17732 of 24918
Quote:
Originally Posted by Sheyster View Post


BF4 seems exactly the same to me, I was also running the beta 334 driver.

I don't actually do much gaming on my 780s, but good to know.

post #17733 of 24918
Quote:
Originally Posted by Leopard2lx View Post

Does anyone know if the EK water block for the 780 comes with plugs?
All my stuff is supposed to arrive in a couple of days and I am just realizing that if the plugs aren't included, I cannot seal 2 of the water block sockets. rolleyes.gif

yes...it would
post #17734 of 24918

Yeah the new driver seems off/odd maybe worse lol, I dont know yet going to see how it goes.  (Had some odd issues in FFXIV: ARR)

post #17735 of 24918
After some doubts were expressed about the PCIe power connectors and the true wattage that can be drawn here is my take on it!

The PCI-E connecter has 6 pins. They are not all used for power. For the 6 pin connector, Pins 1 & 3 are 12V & each can carry 8 Amps. Pin 2 by spec is not connected (but i´ve never seen a PCIe cable with Pin 2 not connected... rolleyes.gif )
Pins 4 & 6 are Com return lines. Pin5 is Com for sensing. Using 2 lines, you get 12V*8A*2= 192Watts, much over the required 75Watts. With an 8 pin PCI-E connector, 2 Com lines are added (4&8) not a 12V & Com. There, Pins 1,2,3 are 12V, Pin 4 is a Com for the 8 pin connector sensing, Pin 5,7,8 are Com return lines, & pin 6 is for the 6 pin connector sensing. Using that config, 12V*8Amp*3=288 Watts, much over the required 150Watts.
There aren't 4 12V pins on the 8 pin connector, only 3, and 2 leads are used for sensing the connector type.

Default specs for PCIe specification 6-pin:




Default specs for PCIe specification 8-pin or 6+2:





BUT, (there is always a but right?tongue.gif )The 12V, 5V, & 3.3V leads are spec'd at #18 gauge, which can carry a max of 10/11 Amps per #18 wire!

So that gives us:

P(W) = I(A) × V(V)
6 Pin: 12V*10A*2= 240 W (But there is 3 12V lines) = 360W
8 Pin: 12V*10A*3= 360 W

MAX theoretical wattage supplied by PCIe lines = 720W


Plus the 75W (again default specs) from the PCIe slot in the motherboard you have a healthy 795W+ for your beast power hungry GK110 card! thumb.gif


Cheers all

Ed

(Team skyn3t)
Edited by OccamRazor - 2/20/14 at 5:04pm
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post #17736 of 24918
Submitted my form.

So far it's only a +60 on the core clock and +150 on the memory.

Hoping to do some more.
post #17737 of 24918
Hey can u add me here are some pics and GPUz







    
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post #17738 of 24918
Quick question for anyone that runs a 780 on stock cooler. I just took off my waterblock so I could install the reference cooler and run the card in my mini rig for a few weeks while I rebuild the main rig. My idle temps seem pretty high. Right around 45C. What is the typical idle temp for this card?

EDIT: My load temps are a little warmer than I remember too. Probably a bad mount.
Edited by stickg1 - 2/21/14 at 4:51am
post #17739 of 24918
Quote:
Originally Posted by stickg1 View Post

Quick question for anyone that runs a 780 on stock cooler. I just took off my waterblock so I could install the reference cooler and run the card in my mini rig for a few weeks while I rebuild the main rig. My idle temps seem pretty high. Right around 45C. What is the typical idle temp for this card?

EDIT: My load temps are a little warmer than I remember too. Probably a bad mount.

Depending on room temp, idle is usually 25-30c .
Edited by eXXon - 2/21/14 at 6:01am
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post #17740 of 24918
hi guys
I just returned back to amazon my evga gtx 780 classified because i had very low overclock margin also after flashing with sky bios i was able to to push up to 1367 mhz 1.35v but after voltage control stop working and i couldn't raise the voltage no more then 1.212.
Max stable clock was 1.280 mhz very disappointed. mad.gif
Now i just bought a galaxy gtx 780 reference and with the sky bios and the guide here in overclock aim able to push and have stable clock at 1.387 mhz and 1653 memory.: aim surprised biggrin.gif Never expect so high clock with a reference card. Overclock better then a classy.

Here some screenshot




gpuz validation
http://www.techpowerup.com/gpuz/359fg/
Edited by pompss - 2/21/14 at 7:49am
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