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post #9981 of 21377
Quote:
Originally Posted by coelacanth View Post


It seems that as core frequency and volts increase, artifacts happen at lower temperatures than when running stock. I remember a few posts in here where people were artifacting with some pretty decent overclocks but their cards never broke 70C. I don't know why, but I've observed it reading through the thread quite a few times. There are more variables than just temperature, and probably other variables that we don't know about.
Very true, thank you for your input.
However, I think I may have found an answer to my question unfortunate as it may be.
When I was running Valley this morning to get the best temps out of it, I noticed that my GPU usage was never going over 85% during the run. In fact, I put everything to bone stock and the usage never went above 75%. It seems that the overclock is not getting fully tested.
I have no idea what is going on here, though.
Tried LN2/ Normal bioses, put CPU overclock to default, reinstalled driver, still no change.

Anyone who can help would be appreciated.
    
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post #9982 of 21377
Quote:
Originally Posted by wstanci3 View Post

Very true, thank you for your input.
However, I think I may have found an answer to my question unfortunate as it may be.
When I was running Valley this morning to get the best temps out of it, I noticed that my GPU usage was never going over 85% during the run. In fact, I put everything to bone stock and the usage never went above 75%. It seems that the overclock is not getting fully tested.
I have no idea what is going on here, though.
Tried LN2/ Normal bioses, put CPU overclock to default, reinstalled driver, still no change.

Anyone who can help would be appreciated.

Run DDU (get it from guru 3D) and then reinstall your drivers with a clean install. DDU will clear out old drivers which has helped some with your problem.

Valley can be weird sometimes, check your GPU usage in Heaven, Firestrike, gaming etc.
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post #9983 of 21377
Quote:
Originally Posted by coelacanth View Post

Run DDU (get it from guru 3D) and then reinstall your drivers with a clean install. DDU will clear out old drivers which has helped some with your problem.

Valley can be weird sometimes, check your GPU usage in Heaven, Firestrike, gaming etc.
I will, thank you.
The problem still persists in Heaven and in BF4( ~77-78% usage). Haven't tried Firestrike yet, but I think it will be the same outcome.
I will be come back with some answers.
Thank you for your help so far. smile.gif
    
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post #9984 of 21377
Quote:
Originally Posted by wstanci3 View Post

I will, thank you.
The problem still persists in Heaven and in BF4( ~77-78% usage). Haven't tried Firestrike yet, but I think it will be the same outcome.
I will be come back with some answers.
Thank you for your help so far. smile.gif

The only other thing I can think of is to check your windows power plan and mess with that. I run a Balanced plan and hit 100% usage. Maybe try switching to the Performance plan and see what happens?

The other time I've seen GPU clocks languishing is when the CPU is weak, but you've got a strong CPU so that can't be it. Still, keep an eye on your CPU usage while benching / gaming?
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post #9985 of 21377
Quote:
Originally Posted by coelacanth View Post

The only other thing I can think of is to check your windows power plan and mess with that. I run a Balanced plan and hit 100% usage. Maybe try switching to the Performance plan and see what happens?

The other time I've seen GPU clocks languishing is when the CPU is weak, but you've got a strong CPU so that can't be it. Still, keep an eye on your CPU usage while benching / gaming?
I plan to check cpu usage. Don't really know what to use. OCCT?
Uninstalled drivers with clean install from DDU and checking benchmarks now. It states now that GPU load is 98/99% which is where it should be. But the power usage is still hovering ~75%.

Just now tried to do another run. My pc just randomly restarted. I guess all eyes are pointing to the PSU now. rolleyes.gif
    
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post #9986 of 21377
Quote:
Originally Posted by wstanci3 View Post

I plan to check cpu usage. Don't really know what to use. OCCT?
Uninstalled drivers with clean install from DDU and checking benchmarks now. It states now that GPU load is 98/99% which is where it should be. But the power usage is still hovering ~75%.

Just now tried to do another run. My pc just randomly restarted. I guess all eyes are pointing to the PSU now. rolleyes.gif

Don't worry about power usage. It has different definitions but I think it's just the power the card is using relative to the TDP that is set for the card.

For CPU usage you can use the Windows Task Manager or HWInfo.
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post #9987 of 21377
Quote:
Originally Posted by coelacanth View Post


It seems that as core frequency and volts increase, artifacts happen at lower temperatures than when running stock. I remember a few posts in here where people were artifact with some pretty decent overclocks but their cards never broke 70C. I don't know why, but I've observed it reading through the thread quite a few times. There are more variables than just temperature, and probably other variables that we don't know about.
men i finally get it to my skull deaf jam was wright in all .if you will add more voltage card will tolerate less temp target....if i will run valley on 1360 MHz whit 1.25v everything is rock solid until i reach around 67c then card start to artifact just a little bit and over 68c star to artifact allot until i reach 72c and card crash.
for now until i will get water block i am gaming on 1306 MHz just whit stock voltage rock solid all day on but temp cant reach 74c if reach card will crash.i am stable on 1306 MHz on stock voltage-great card, but meant to be water cooled.....again thanks for all help from deaf jam he is such of great person and helped me a lot to understand how this card work....
Edited by gagac1971 - 3/4/14 at 10:31am
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post #9988 of 21377
Quote:
Originally Posted by coelacanth View Post

Don't worry about power usage. It has different definitions but I think it's just the power the card is using relative to the TDP that is set for the card.

For CPU usage you can use the Windows Task Manager or HWInfo.
Checked my cpu usage when I benchmarked Valley. I set the overclock to 4.5ghz to check the usage. On Hwinfo, it was showing a constant x45 multiplier, there were no dips, save for it dropping to 4499 on occasion.
And checking Firestrike Extreme and comparing to others, I am way low of the normal. At bone stock, I have a Firestrike Extreme of 5497, which is way low.
I don't know what to make of this.

I wonder if this is a psu problem or a hardware problem with my card?
Edited by wstanci3 - 3/4/14 at 12:28pm
    
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post #9989 of 21377
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Quote:
Originally Posted by gagac1971 View Post

thanks Deaf Jam you are truly gentleman.......i will keep this card and stop writing here about it and about my specific problem.....soon i will put a card on water,i think next month and then i will see wats happens.......thanks again for all of your help Deaf Jam.....
p.s. you are saying that the problem is whit temperatures but my man TEMP DON'T REACH EVEN 80C NEVER DURING THAT OVERCLOCKING!!!!!THEN HOW I REACH TEP' LEVEL SINCE I DON'T PASS 80C?that i cant get it to my skull....

when overvolting 80c is very high. I don't have any specific data to back it up, but when I would reach about 60-70c when above about 1.3v I would see a lot of artifacts and the additional voltage didn't even seem to help. Once I finally put my 780 under water it made such a huge difference. I have been trying to tell people since the 780 release that you really can't judge the performance of these classified cards on air. My card was like night and day going to water. A lot of other cards i had like locked 680's and titans didn't really change much going to water but the additional voltage we have to play with really makes use of the colder temps water can provide. it's an amazing difference.

So even though you think your temps are good and you should be able to push farther it's not the case. You need to try and bring them below 60c under full load to start to push your card further in my opinion.

Also did you try using the pwm control for additional stability. it should help increase voltage under load.
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post #9990 of 21377
Quote:
Originally Posted by gagac1971 View Post

thanks Deaf Jam you are truly gentleman.......i will keep this card and stop writing here about it and about my specific problem.....soon i will put a card on water,i think next month and then i will see wats happens.......thanks again for all of your help Deaf Jam.....
p.s. you are saying that the problem is whit temperatures but my man TEMP DON'T REACH EVEN 80C NEVER DURING THAT OVERCLOCKING!!!!!THEN HOW I REACH TEP' LEVEL SINCE I DON'T PASS 80C?that i cant get it to my skull....

Ok, let's see if I can help you then.

We will assume some simplified rules of thermodynamics and heat transfer to make the explanation easier and remove some math.

Let us assume that your GPU can handle 100 pts of energy. Anything under, the card runs, anything over, you get a crash. Also, temperature is energy and voltage is energy.

High temps are higher energy than low temps. Low voltage is lower energy than high voltage. These charts are not accurate, but rough estimates to illustrate what is happening.

So, let's make a chart of voltage energy and heat energy.

Voltage........... Energy..........Increase in energy from previous step
Stock ............ 5 pts
1.2 ................10 pts ........................5 pts
1.25 .............. 17 pts .......................... 7 pts
1.3.................. 27 pts ........................ 10 pts
1.35 ................40 pts ...........................13 pts.

As you can see, amount of energy increases more as you go higher. Now for temperature.

We will assume each degree C is 1 pt. of energy. That gives us this table

50C = 50 pts
60C = 60 pts
70C = 70 pts
80C = 80 pts
90C = 90 pts

So, we now have two tables describing our energy for both temperature and voltage. We also know that the card cannot handle over 100 pts of energy.

Let's combine the tables to see what we get

1.15v @ 90C = 5+90 pts = 95 pts. The card is fine with this as it is under it's 100 pt. limit
1.2V @ 90C = 10+90 pts = 100 pts. The card is at it's limits, but can still run as long as it doesn't go over 90 C
1.25V @ 80C = 17+80 pts = 97 pts. The card is fine here as it is under 100 pts.
1.25V @ 90C = 17+90 pts = 107 pts. The card crashes as it is over it's 100 pt limit

So now that we have started filling in the table, let us see what happens at higher voltage like you are desiring to run.

1.3 V takes up 27 pts of energy. 100-27 = 73 pts left for temperature. Since 1 pt = 1 degree C, we have 73C as the limit before the card has had too much. So now, by our example we know that anything over 73C will crash our cards at 1.3 volts.

At 1.35 V, 40 pts are taken up by voltage, that means we have only 60 left for temperature. So anything over 60 C will be too much for our card. That is why your card was crashing at 80C, you were over your cards limit.

This is why cooling is important. Temperature is a measure of energy as is voltage.

Now, why does water cool better than air? The answer has to do with how much energy one unit of air can hold compared to one equally sized unit of water. This is measured by how much energy it takes to raise a unit 1 degree C.

Air has a heat capacitance of 1 kJ/kg C
Water has a heat capacitance of 4 kJ/kg C

So now we see that water, with all things being equal, is 4 times better than air at removing heat. I hope this clears some things up for you. I

I'm glad you didn't take my post the wrong way. If you have anymore questions, let me know.
Edited by Deaf Jam - 3/4/14 at 1:49pm
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