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[Official] nVIDIA GeForce GTX TITAN X Owners Club - Page 1623

post #16221 of 18191
Overclocked Titan X SLI on X99 platform efficiency in 20 latest games.
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post #16222 of 18191
Quote:
Originally Posted by rauf0 View Post

Overclocked Titan X SLI on X99 platform efficiency in 20 latest games.

Rauf, you're insane, but I love it! How's your CSW V2 held up? Any issues?
post #16223 of 18191
Quote:
Originally Posted by rauf0 View Post

Overclocked Titan X SLI on X99 platform efficiency in 20 latest games.

Your CPU gets a bit hot there. Cool video though, I liked it.
post #16224 of 18191
Quote:
Originally Posted by mgrobins View Post

I have noticed some strange behaviour with mine as well. If I'm monitoring voltage and clock while running a game or say Firestrike (3dmark) it will sometimes only run up to ~1200Mhz and lower voltage while the "full OC" that it sits at when first run is 1450MHz.

I'm not sure if this is after an error/glitch due to the OC being too high or something with the bios itself. A reboot fixes it.

I run GM200-ULTIMATE-1256mv bios by Sheyster and my card sits at 1174mV (110% power limit). I think there may be something with this bios that isn't right?

I don't know why it isn't running at 1256mV.


EDIT:

I installed the 1281mV bios and it runs with a reported max voltage of 1274mV in AB so this bios is reporting correctly (I assume some offset or reading error).

Firestrike Extreme I can run at 1530MHz, 99% GPU load, 88% TDP (according to GPU-Z) and 118% powr limit on AB.
Temp ~54C

Score 9150.

My question in regard to this is when this Bios was modded were the voltage step changed as well so it has stable step down voltages as it downclocks? I don't need to run at 1500+ all the time.

I'd prefer to run a lower volt Bios at ~1450 (My card should actually be ok at 1250mV really for 1500MHz) but I can't work out why the 1256mV bios isn't right.

Maybe someone else can chime in?

I'm now running the cyclops3 bios, it's the only one that lets me adjust voltage via afterburner but this one behaves very strangely. If I put +200 on core it will either do 1500+mhz then after a minute it downclocks to something like 1350mhz and lowers voltages as well!
Like it throttles however, it downclocks 200mhz! Temps are in check, no power limit and it acts like this with adaptive and power..
I can't remember any of this weirdness when I first bought my cards and flashed occasionally back in june.. Seems like recent drives also affect the clocks/mV?
post #16225 of 18191
Quote:
Originally Posted by mgrobins View Post


EDIT:

I installed the 1281mV bios and it runs with a reported max voltage of 1274mV in AB so this bios is reporting correctly (I assume some offset or reading error).

1.274 is the correct voltage, the bios is labeled 1.281 I think to allow a little voltage drop and still maintain 1.274v
Quote:
Firestrike Extreme I can run at 1530MHz, 99% GPU load, 88% TDP (according to GPU-Z) and 118% powr limit on AB.
Temp ~54C

Score 9150.

My question in regard to this is when this Bios was modded were the voltage step changed as well so it has stable step down voltages as it downclocks? I don't need to run at 1500+ all the time.

I'd prefer to run a lower volt Bios at ~1450 (My card should actually be ok at 1250mV really for 1500MHz) but I can't work out why the 1256mV bios isn't right.

Maybe someone else can chime in?

I run the 1.281 bios. My cards downclock/downvolt just fine. To get the absolute lowest clocks/voltage at idle, the NVCP power option needs to be set to "adaptive". Mine runs at 135MHz and less than .9v at idle this way. But look at the red traces to the right side of this GPU-Z plot: The cards are now at idle, but you can see the steps down of both the clocks and voltage as they cycled down through the P States. They do not run at full clocks/voltage all the time, only when the demand on them is in place do they ramp up.

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post #16226 of 18191
Thread Starter 
I've received several questions about voltages. I'm responding publicly so that everyone can see my take on it:

- Max voltage on these cards is 1.274v without hard-modding or pencil modding.

- If you install any version of the Ultimate BIOS and are not getting the voltage specified (or slightly above, indicated in software), do the following:

1. Uninstall AB and PX, reboot
2. Use DDU to remove drivers, reboot
3. Re-flash BIOS, reboot
4. Re-install drivers, reboot
5. Re-install AB (I prefer it to PX, but it's up to you)

- The Ultimate BIOS downclocks both core and voltage normally IF installed correctly and NVCP performance setting is left on Adaptive, the default setting. You only get specified vcore under load.

- The Ultimate BIOS won't temp throttle until 85 deg C.

- DO NOT use AB or PX to increase voltage using the Ultimate BIOS; voltage is preset. Use the version with the specified amount of voltage you need. Remember that voltage will only ramp up under load.

I'm going to start re-directing all inquiries via PM to this thread, so that everyone can benefit from the info provided. JPMboy, Charlie and lilchronic can also provide good info about issues like this.
Edited by Sheyster - 1/29/16 at 9:38am
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post #16227 of 18191
I use the JPMBoy tweaked version of the Cyclops bios since it hard locks the voltage to 1.274. Adaptive voltage always seems to cause problems, which isn't the fault of the bios, but the Nvidia drivers since it's problematic from time to time even with the factory default bios.

Temps obviously aren't a problem if you are hitting 53 degrees at 1530 mhz, so just use a hard locked voltage bios. Doesn't really matter if it's a Sheyster or Cyclops bios as both of them are ace.
post #16228 of 18191

Hey guys been out of this thread for awhile. How are we sitting this spring for VR (TITAN X SLI 1500 Watercooled). Should I just assume I'm sitting pretty and order Vive or Oculus and profit?

post #16229 of 18191
Quote:
Originally Posted by Ghoxt View Post

Hey guys been out of this thread for awhile. How are we sitting this spring for VR (TITAN X SLI 1500 Watercooled). Should I just assume I'm sitting pretty and order Vive or Oculus and profit?

They claim it will work, but I have my doubts, especially if you crank up the settings.
post #16230 of 18191
Guys, I'm moving back to a single Titan X (I know, don't ask). How would you determine which card you'd get rid of? What are the factors I should consider or I should I just look at max possible clocks?rolleyes.gif
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