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[Official] NVIDIA GTX 780 Owner's Club - Page 1792

post #17911 of 24915
Got a question for the guys with Stock reference GTX 780s. What am I looking at on average on ram and boost clock on this card?
http://www.newegg.com/Product/Product.aspx?Item=N82E16814133489

Which is the best program to overclock the card? GPU Tweak, MSI, EVGA?
post #17912 of 24915
Quote:
Originally Posted by Leapo View Post

Like I said, it's the BIOS detecting a fan fault (due to low RPM) and ramping the fans up to 100% speed. It totally overrides all software fan control when this happens.

Once the BIOS detects that the fan is actually running, it allows software fan control again... which then turns the fans back down to normal RPM... which the BIOS detects as a fault (triggering another ramp to 100%). Round-and-round we go.

A LOT of people have this issue with aftermarket fans on the GTX 780. We need a modified BIOS that allows fan speeds lower than ~1500 RPM without setting a fault condition.

Edit:
If someone could modify this BIOS (from the first post in this thread) to fix this issue, I would be extremely grateful: http://www.overclock.net/attachments/16012

Try this one:

[*] EVGA 780 ACX
[*] Version 80.10.3A.00.80
EVGA 780 ACX


Quote:
Originally Posted by yttocstfarc View Post

Got a question for the guys with Stock reference GTX 780s. What am I looking at on average on ram and boost clock on this card?
http://www.newegg.com/Product/Product.aspx?Item=N82E16814133489

Which is the best program to overclock the card? GPU Tweak, MSI, EVGA?

Read my guide for some pointers: OCCAMRAZOR ADVANCED GK110 OC GUIDE
I use and recommend AfterBurner: http://www.guru3d.com/files_get/msi_afterburner_beta_download,20.html


Cheers

Ed

(Team skyn3t)
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S.S.
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post #17913 of 24915
Quote:
Originally Posted by OccamRazor View Post

Try this one:
That made no difference at all. Fan still ramps up-and-down, over-and-over.

Looks like it still has exactly the same issue, the aftermarket fans run at a low enough RPM to trigger fault-detection.

Edit:
For reference, the fans I'm using have an RPM range of 600 RPM to 1800 RPM.
Edited by Leapo - 3/1/14 at 7:11pm
post #17914 of 24915
Alright fellas I need some help,I received my new Zotac 780ti, pulled out my old 6950's and put the new card in, connected both the 6 pin and 8pin connectors from my Corsair TX650m, plugged my cables in and dvi cable to top dvi port on card, turned on the pc and have nothing but a black screen, The fans spin on the card and that's about it, my asrock extreme3 gen3 has the 2.30 which is the newest I can see, I've tried hitting my cmos clear button and that isn't working either, do I have a faulty card or am I doing something wrong? Thanks a bunch!
post #17915 of 24915
Try the card in another slot. If you have another computer, try the card in another computer too.

If the card does not work in either of those situations, you have a faulty card for sure.
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Everest - Intel
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post #17916 of 24915
Just tried it in the 2nd slot and it boots, why won't it boot in the first slot?
post #17917 of 24915
Quote:
Originally Posted by xxslay3rxx View Post

Just tried it in the 2nd slot and it boots, why won't it boot in the first slot?
You either have a bad slot on your motherboard, or one of the last 8 PCIe lanes on your 780 is screwed up.

Try it in another motherboard (so you can try it in full 16x mode) and see if it works there.
post #17918 of 24915
I just put back in my old 6950 in the primary slot and it boots just fine
post #17919 of 24915
Quote:
Originally Posted by Leapo View Post

Like I said, it's the BIOS detecting a fan fault (due to low RPM) and ramping the fans up to 100% speed. It totally overrides all software fan control when this happens.

Once the BIOS detects that the fan is actually running, it allows software fan control again... which then turns the fans back down to normal RPM... which the BIOS detects as a fault (triggering another ramp to 100%). Round-and-round we go.

A LOT of people have this issue with aftermarket fans on the GTX 780. We need a modified BIOS that allows fan speeds lower than ~1500 RPM without setting a fault condition.

Edit:
If someone could modify this BIOS (from the first post in this thread) to fix this issue, I would be extremely grateful: http://www.overclock.net/attachments/16012

In the stock bios for my gpus, Gigabyte GTX780 PC REV2 with two 8-pins, the lowest settings of the fans are 17% or 770rpm. If you took that bios, read it out in the Kepler bios editor and just copied your settings except for the fan settings to that bios, wouldn't that suffice? Or is it hardware related to your am heatsink+fans? Or isn't it because the heatsink might not be correctly mounted to the pub?
post #17920 of 24915
Quote:
Originally Posted by santrik View Post

In the stock bios for my gpus, Gigabyte GTX780 PC REV2 with two 8-pins, the lowest settings of the fans are 17% or 770rpm. If you took that bios, read it out in the Kepler bios editor and just copied your settings except for the fan settings to that bios, wouldn't that suffice?
Isn't that a 80.80.xx.xx.xx BIOS? Wont work on a 80.10.xx.xx.xx card.

And even so, Kepler BIOS Editor's fan-speed settings don't actually seem to...work. All of Skyn3t's BIOS claim to allow 20% fan-speed (and it shows up that way in the BIOS editor), but no matter which one I flash, the lowest I can set is 29%.

The stock BIOS that came on my card allowed me to go as low as 26%, but that's the best I've seen so far.
Quote:
Originally Posted by santrik View Post

Or is it hardware related to your am heatsink+fans? Or isn't it because the heatsink might not be correctly mounted to the pub?
Not sure what you're asking here, but the heatsink is mounted perfectly fine. Temps are great.





It's just the EVGA ACX cooler with the fans swapped for much, MUCH quieter ones.

If I could just get the card to accept the low-RPM of the new fans, It'd be perfect. Still holding out hope that someone can mod the BIOS and make it happen... Apparently, everyone who has tried to run an Accelero Twin Turbo II or an Accelero eXtreme III on their GTX 780 has run into this exact same problem, so it's not just me who needs this fix.
Edited by Leapo - 3/2/14 at 3:28am
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