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[Official] EVGA Classified & K|NGP|N Owner's Club - Page 996

post #9951 of 21377
How things going here. I have read many pm's about GPU usage while gaming and mine.

If you are on Air don't Mine at all with a intensive heat 24/7 even in a low temp you will cook your vrm or other component in a long short time.

If you are gaming on Air make sure you have enough intake cold air going on into the GPU or it may cause serious heat issue affecting the memory and causing those funking line and dot's all over the screen.


I'm still trapped with my new work but I'm here most the time reading from subbed email. and just found out today that I was one of the [Nominations] The Most Helpful People on OC.net I have to thank you all too and smil3dbd4e4c2e742.gif are on me today.
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post #9952 of 21377
Quote:
Originally Posted by skyn3t View Post

How things going here. I have read many pm's about GPU usage while gaming and mine.

If you are on Air don't Mine at all with a intensive heat 24/7 even in a low temp you will cook your vrm or other component in a long short time.

If you are gaming on Air make sure you have enough intake cold air going on into the GPU or it may cause serious heat issue affecting the memory and causing those funking line and dot's all over the screen.


I'm still trapped with my new work but I'm here most the time reading from subbed email. and just found out today that I was one of the [Nominations] The Most Helpful People on OC.net I have to thank you all too and smil3dbd4e4c2e742.gif are on me today.
Thank you for your contributions skyn3t! Where would we be without you?

I'm running my 780 Classified at 1.21v (skyn3t bios) with speeds of 1254Mhz on the core and memory at 7516Mhz. I have not touched the voltage on the memory and don't plan to. The highest temps I've seen are under 80c. I ran Heaven benchmark for 6 hours without issue at these speeds and max temp reported was 74c. My question is, are these speeds safe? I don't plan on mining. Just gaming for a few hours at a time.
Edited by DADDYDC650 - 3/3/14 at 11:37am
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post #9953 of 21377
Quote:
Originally Posted by Deaf Jam View Post

You can also use thermal / electrical tape to tape fins together or secure fins to the parts they are rattling against. I don't see that point in RMAing has you have a decent shot of having to RMA all over again unfortunately.

Yeah, I've read about this "fix" but I am extremely disappointed. This is my 6th EVGA card now and this is the first time I have an issue (well actually second time- I had a 670 which bricked after a couple of days). I expected much better QC from EVGA and for a £600 card.
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post #9954 of 21377
Quote:
Originally Posted by phynce View Post

I am currently looking in to a similar setup from the research I have done and what I have found I would recommend parallel.

Some reading http://www.xtremesystems.org/forums/showthread.php?253337-Actual-influence-of-flow-rate-on-system-temps

Excerpt that made up my mind for me

Graphics Tests:

The graphics stress tests are obviously also influenced by flow rate, and we will see how below. CPU temperature is reported for reference only, since there is very little load on the CPU during intensive graphics (50% on one core, under Furmark).



We see a substantial increase in average GPU temperature from one card to two, ranging from 7.39 °C (calculated in Note 1) for a parallel setup to 7.99 °C for a serial (calculated in Note 2). But while 7 to 8 °C can seem like much, it is also important to remember that the overclock limitation in SLI mode was demonstrated during our initial setup NOT to be temperature related (see note in the above Methodology section).

Finally, note 3 is of particular interest within the framework of this study, because it shows that even at the GPU level, a parallel setup with modern blocks such as those presented here remains a superior solution to serial, as evidenced by a 0.6°C advantage of parallel over serial.

Thanks man ... that review is really good and now i will also go with parallel ^^ i can´t wait to see how it actually performs ^^
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post #9955 of 21377
The 780 Ti Classy made it to Australia and promptly sold out.

Quote:
EVGA GeForce GTX 780 Ti Classified ACX 3GB
$979.00 SOLD OUT, NO ETA
PCCaseGear

We might never see KingPins direct from our Australian retailers.....
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post #9956 of 21377
Quote:
Originally Posted by gagac1971 View Post

some min ago i was played bf4 on 1332 mhz and whit 1.24V and the cars crash after 1 hour and temp never passed 72c.....with this f....ing v droop is almost impossible to get certain voltage....about this crash problem is that voltage will not stay on 1.24v she will oscillate on that voltage from there card will crash sometimes because voltage droops from 1.24v to say 1.231v

Gagac1971: Go to my post here, http://www.overclock.net/t/1411500/official-evga-classified-owners-club/9880#post_21877871 This talks about your alleged vdroop and has a link with pictures. Read what I typed and follow the link and you will find out you have no vdroop. With pictures of the proof from someone affiliated with EVGA. You are just at your limit for air, that is why your stability is trash and voltage doesn't help.

TLDR: No vdroop.
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post #9957 of 21377
Quote:
Originally Posted by Deaf Jam View Post

Gagac1971: Go to my post here, http://www.overclock.net/t/1411500/official-evga-classified-owners-club/9880#post_21877871 This talks about your alleged vdroop and has a link with pictures. Read what I typed and follow the link and you will find out you have no vdroop. With pictures of the proof from someone affiliated with EVGA. You are just at your limit for air, that is why your stability is trash and voltage doesn't help.

TLDR: No vdroop.
ok thanks men but my temp say whit 1.3v never past 75c but card will crash.i will check now
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post #9958 of 21377
Quote:
Originally Posted by Deaf Jam View Post

Your card is not drooping. GPU-Z doesn't know how to read the card correctly. So when your voltage goes up under load, it gets confused and is telling you otherwise unless you have a faulty card. Since you have a decent overclock on air, that is highly unlikely. Since I have a TiC, I will let TiN give you some DMM readings on this thread at kingpincooling.com.

Here is the pertinent thread.
http://kingpincooling.com/forum/showthread.php?t=2549

The guy had the same complaint as you, heavy drooping noticed under software (GPU-Z). TiN at kingpincooling took notice and decided to show him why he should not trust GPU-Z by grabbing a card off of EVGA's assembly line. He then tested the card at 1.35 set. Idle read 1.357, under load it climbed to 1.404 under DMM.

So what happens is when your card goes under load is that it starts to droop. The Power management section sees this and increases the voltage to compensate. It is designed to go a bit overboard with compensation to help with stability. This all happens in a fraction of a second. So when you are running 1.35, your card is probably in the range of 1.4 before you can blink. GPU-Z will say otherwise the entire time.

So your card at 1.326 is probably around 1.375-1.38 actual going by TiN's measurements. That is why increasing your voltage isn't getting you anywhere over 1.326. You are already over it by a good margin and the heat load is overcoming your coolers abilities. I would personally back down the overvoltage a bit. Most likely the loss of a little clock speed will not be noticed and you won't stress the GPU nearly so much.

I hope this helps put you at ease a bit about the droop.
Quote:
Originally Posted by gagac1971 View Post


ok thanks men but my temp say whit 1.3v never past 75c but card will crash.i will check now
yep i just follow your suggestion and i understand everything,from there just to tel you, imagine i will put 1.35v and readings in gpuz are 1.34v-maybe is going up to 1.4v like you sed- and i will try to reach 1371 mhz card will crash in 15 seconds but temp dont pass75c,from there you opinion is that on that voltages card dont suport 75c?and that heat will make instability and crash the card or card dont even let tem go higher then 75 and make card to crash?
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post #9959 of 21377
Quote:
Originally Posted by gagac1971 View Post


yep i just follow your suggestion and i understand everything,from there just to tel you, imagine i will put 1.35v and readings in gpuz are 1.34v-maybe is going up to 1.4v like you sed- and i will try to reach 1371 mhz card will crash in 15 seconds but temp dont pass75c,from there you opinion is that on that voltages card dont suport 75c?and that heat will make instability and crash the card or card dont even let tem go higher then 75 and make card to crash?
ok i will try to overclock whit less voltages and i will spend some time playing whit that......
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post #9960 of 21377
Quote:
Originally Posted by gagac1971 View Post


yep i just follow your suggestion and i understand everything,from there just to tel you, imagine i will put 1.35v and readings in gpuz are 1.34v-maybe is going up to 1.4v like you sed- and i will try to reach 1371 mhz card will crash in 15 seconds but temp dont pass75c,from there you opinion is that on that voltages card dont suport 75c?and that heat will make instability and crash the card or card dont even let tem go higher then 75 and make card to crash?

Yes. That is why many of us watercool.

This is gonna be simplified, but think of it this way. Your GPU has an energy limit, anything over is a crash. Voltage is energy, and heat is energy. So if you want to run high voltages, you have to get rid of more heat energy than low voltages. If not, it goes over this limit and crashes. If you run lower voltages, your card can tolerate higher heat energies because it has less voltage energy.

In general, the more voltage you put into your GPU, the lower of a maximum temperature it is going to be stable.

Some extreme examples from my rather sensitive card on benches under water:

1.5V I can run benches if I keep my core below ~35C. If it goes a bit above 35C, it crashes.

1.45V I can bench at or below 41C, 42C for more than a moment is a crash.

While the voltages are extreme, the underlying rule of thumb applies. More voltage means your card will tolerate less heat.
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2 Magicool Dual 180s W7 Dell 3014 30" EVGA Supernova 1300 
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Built into furniture Soundblaster 
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Desk Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K P67A-GD65 (MS-7681) NVIDIA GeForce GTX 780 Ti 32 Gb 1600 DDR3 HyperX 
Hard DriveHard DriveHard DriveCooling
Samsung 256 SSD Samsung 1TB SSD 2 Hitachi 3TB 7.2k in RAID 1 2 Monsta 560mm 
CoolingOSMonitorPower
2 Magicool Dual 180s W7 Dell 3014 30" EVGA Supernova 1300 
CaseAudio
Built into furniture Soundblaster 
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Reply
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