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[Official] NVIDIA GTX 680 Owner's Club - Page 527

post #5261 of 6048
Quote:
Originally Posted by myrtleee34 View Post

What are using quad 680 for? gaming, if so, what games are you playing? Thats alot of power!


i just got them like 2 - 3 days back ...have not had the time to fully use them --just benched 3d mark 11 on xtreme with some slight oc on the gpu and 4.7ghz on the cpu i have a RIVE wth 3930k .

i am just wondering how ppl with similar gpus / hardware are having such high XTREME 3d mark 11 scores --- are all of them on LN2 ..

---
post #5262 of 6048
^^ Nice, post those scores! biggrin.gif
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post #5263 of 6048
Quote:
Originally Posted by SilasDG View Post

Quote:
Originally Posted by pWnDankosity View Post

I can run stable tests up to +185 without failures in game and with the OC Scanner, but not the same case with Heaven. Any ideas?

--I appologize for the "+165-/+" usage. I am confused on how the actual frequency is calculated. I thought it was stock 1019 plus whatever I bump my card at to (+165), but when running EVGA OC Scanner, the NV-C menu sometimes shows 1350Mhz, which is not the sum of the later two numbers.

Hi pWmDankosity,

I don't believe anyone ever answered your question so i'll attempt to now. I'll start with the "combined clock" issue. There are two factors.

1.
You are NOT combining the Stock Clock + the additional Mhz. You're combining the Boost Clock. Depending on your card version (Nvidia, EVGA, EVGA FTW, etc) your boost clock will be higher. Mine for example is a stock NVIDIA card. with a stock clock of 1006MHz and boost 1058MHz. If I add 150Mhz i'm now boosting to 1308MHz Total. Also if you mod your BIOS your boost clock will change (not necessarily reflected in Precision) As an example my card after MOD has a boost speed (before oc) of 1202MHZ now I only add +106MHz to reach a 1308MHz clock speed.

2. The clocks move up and down slightly. The card appears (not confirmed) to have clock levels (1000Mhz, 1100Mhz, 1150mhz, 1160MHz, etc) So if you overclock to 1156Mhz the clock will adjust itself +4 or -6 to align with the 1150 or 1160 levels (these aren't actual levels just examples).


For your issue dealing with crashing you won't necessarily see artifacts. Have you increased the voltage or power target at all? For an overclock like this i'd suggest at least a 115% power target.. (ALWAYS RAISE Voltage and Power targets SLOWLY on stable clocks and check for errors/excessive heat.)

*The Heaven benchmark is not "lying" it is designed to push the GPU/CPU combination to it's max. You will not experience the same situation in game. If the situation occurs only when clocks are above 185+ than it is 99% The card/clock/voltage at fault.

Thanks again for the help. I finally know how to calculate my overclock. I have the power at 132% TDP. I have not touched the voltage, for I don't want to void my warrantee. So my question I believe now would be:

1) So since my boost is 1084, and I can get a steady +166Mhz overclock on the core before failure in Heaven at all Max settings, is this a reasonable OC for this card to fail Heaven at? EVGA GTX680 4GB 2686-KR.

2) Do you know of any trick in which to squeeze an extra bit of performance before voltage adjustments? My Memory OC is +550 or @3550Mhz btw.

3) If I decide to do voltage adjustments, or even MOD the bios, what sort of performance gains am I looking at over the 1250Mhz OC I have. I am running. (1084 Boost +166Mhz OC) right? My temps are constant below 72C, AVG 45C in game. )72C in EVGA OC SCANNAER Furry)

4) I heard if heaven doesn't run stable the card is not stable. Truth? Is there a better test software for stability?
post #5264 of 6048
My Signature SC idles at 23c average. Never seen more than 26. Dunno where amd fanboys come from saying that the 680 bakes. I never see more than 59c playing high demanding games at 1080p with texture mods.
post #5265 of 6048
23 in F is 73* that's close to as low as the ambient temperature in most homes.

Mine idle's around 35-40 and easily hits 75C under load if the fan curve isn't adjusted. Adjusted I don't see it raise over 55C/

You have to remember you're running a signature and not a reference. You're cooling hardware/curve may be superior to that of a reference. I agree though i'd never say the card "bakes"
post #5266 of 6048
idle temps are not significant. put a heavy load and post again.
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post #5267 of 6048
Some help pls.

How to unlock +99 core mV in MSI AB 2.2.3 ? I need around 1.30V. With +93 i have 1.275V...
post #5268 of 6048
Quote:
Originally Posted by LionS7 View Post

Some help pls.

How to unlock +99 core mV in MSI AB 2.2.3 ? I need around 1.30V. With +93 i have 1.275V...

Gtx 680 Lightning? Software doesn't read the voltage correctly, on the ln2 bios with +93mV it's actually getting closer to 1.36V. You need a multimeter to see the actual voltage.
    
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post #5269 of 6048
Quote:
Originally Posted by pWnDankosity View Post

Thanks again for the help. I finally know how to calculate my overclock. I have the power at 132% TDP. I have not touched the voltage, for I don't want to void my warrantee. So my question I believe now would be:


1) So since my boost is 1084, and I can get a steady +166Mhz overclock on the core before failure in Heaven at all Max settings, is this a reasonable OC for this card to fail Heaven at? EVGA GTX680 4GB 2686-KR.


2) Do you know of any trick in which to squeeze an extra bit of performance before voltage adjustments? My Memory OC is +550 or @3550Mhz btw.


3) If I decide to do voltage adjustments, or even MOD the bios, what sort of performance gains am I looking at over the 1250Mhz OC I have. I am running. (1084 Boost +166Mhz OC) right? My temps are constant below 72C, AVG 45C in game. )72C in EVGA OC SCANNAER Furry)


4) I heard if heaven doesn't run stable the card is not stable. Truth? Is there a better test software for stability?


No problem at all mate always glad to help.

1A.)

While there is no standard due to card binning I would say +166 (Total 1250MHz) is a reasonable average. Before BIOS mod I was hitting around 1250MHz on the core before failure. My card is reference pcb and yours looks to be as well after a quick Google search. That being said i'm sure there are people out there who have broken 1500MHz and others who can't break 1100Mhz.

If you want to run some benchmarks in heaven or 3dmark11
I'd be happy to do a comparison benchmark in either 3dmark11 or Heaven provided you provide: Scores, Clocks (Core and Memory) Voltages, and Benchmark settings.

*Note: Your card is 4GB and mine is 2GB there will not be a difference in benchmarks as long as you are running at 1080P resolutions or less and in a single monitor setup for the benchmark (you can be in dual as long as total resolution is 1080P or less between them.

While on the topic of bench-marking make sure to edit your fan curve. The GTX680 downclocks at 70*C Which on an unedited curve you may hit in benchmarks. You will get a less performance if this occurs. New fan curves can easily compensate though.



2A.)

I've overclocked a lot of cards in the past and there are a few factors. Firstly if you know you've hit your limit on power you could lower one clock while overclocking the other.
If the issue isn't actually power related I like to do what I call "balancing" the clocks. I slowly raise one until it tops and then raise the other. Sometimes after raising the other the first will gain some more head room. (Not totally sure as to the reasoning here but i've gained +100MHz before.. don't expect 100MHz gains though.



3A.)

In my personal experience not much. I have a reference card though and i'm told there are additional power phases and modifications on the EVGA cards. If your card is reference though I wouldn't expect to much from a voltage increase.

Also keep in mind there are other benefits to BIOS modding. My personal favorite was the ability to use the fan at 0-100% instead of 30-85%. Modding also allows you to set the default OC so that you're overclocked at Boot before windows loads meaning you won't need to run a tool at boot.

If you decide to mod your bios BACK IT UP. I know that sounds obvious but I've seen a number of people do BIOS Mods on boards/cards before and then ask how to fix it.. The short answer is you're probably out of luck. In a lot of BIOS Corruption situations you can't just download a BIOS because even on the same card there are many different BIOS revisions/versions. It takes 2 seconds in GPUZ to save $500.




4A.)

Yes and No. Its always possible that a card is bad but most often Heaven being unstable results from Bad Clocks and Voltages. If you're having trouble in heaven at stock clocks try 3dMark, Furmark, or 3dMark11. There are others but those are the best and all you should really need. If you continue having trouble feel free to post and i'm sure myself or someone else will help you out.
Edited by SilasDG - 2/10/13 at 10:49pm
post #5270 of 6048
Yes I know that. Just want I little bit more for 1500Мhz core in some benchmarks. Now I get in the new 3Dmark max 1463Mhz.
So, somebody...some help pls for +99 in MSI AB ? smile.gif
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