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[Official] NVIDIA GTX 780 Owner's Club - Page 2472

post #24711 of 24924
Quote:
Originally Posted by alton brown View Post

Ok, so forgive me if I ask the same questions as other people may have already. (Haven't had time to read prior, I'm always on the go. Not many people hang by this thread anymore!) Did you flash your bios? What card do you have? Do you know what default bios is in your card?

I have an Asus GTX 780 DCIIOC rev B1
I flashed my bios with a skyn3t rev4 customized
The original bios is the 80.80.21.00.3B

Thx in advance
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post #24712 of 24924
Quote:
Originally Posted by JSmithJ View Post

I have an Asus GTX 780 DCIIOC rev B1
I flashed my bios with a skyn3t rev4 customized
The original bios is the 80.80.21.00.3B

Thx in advance
So your ready for the volt mod. And your saying that you can't get your clock speed over 1045mhz with the ReV4 bios? What's happening at 1045 or if you push past 1045? System crashing?
post #24713 of 24924
Currently own Asus GTX 780 DCII x 2 in SLI with an Asus PB258Q 2560 x 1440 60hz monitor running anywhere from Rise of the Tomb Raider high settings, Xcom Declassified max settings, Doom (2017) ultra settings, to Plants vs Zombies at around low settings. It'll handle BF1 at 2560 x 1440 if you treat them nicely and/or praise Cthulhu (preferably rub cheetah blood on the engines).
post #24714 of 24924
post #24715 of 24924
Quote:
Originally Posted by alton brown View Post

So your ready for the volt mod. And your saying that you can't get your clock speed over 1045mhz with the ReV4 bios? What's happening at 1045 or if you push past 1045? System crashing?

With the original Skyn3t rev4 bios, the card didn't go over 941 MHz.
So, I rose the base clock to 1150 MHz (my first target) and rose all the max voltages of 25mV just in case.

The card was blocked at 941 MHz and now at 1045. I can put 2000 MHz (just an example), it stay at 1045... I think there is a voltage limit who limit the max clock to avoid crash... But where?!
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post #24716 of 24924
I like how this thread seems to have got more active recently. I'm still working out higher stable overclocks but I have a couple of questions for you experienced bunch.
Using skyn3t rev4 vbios and setting mV + 62, Power Limit 125%, afterburner always displays a steady voltage of 1.125V which is the same as stock.
Is this how it should be? Do I need to do the afterburner voltage mod and LLC hack? If I select extended MSI in afterburner voltage settings it can go up to 1.3v but I'm a bit hesitant to use this method. I'm currently stable at 1187MHz core and 1599MHz mem but if I go up to 1200MHz core I start to get small artifacts in unigine heaven.

Second question, I want to replace thermal pads, am I right in thinking I need 1.0mm thickness? I'll probably go for Phobya XT or Ultra.

Thanks guys

EDIT: Voltage hack worked, currently using 1.170V @ 1.2GHz and no artifacting in UH.
Edited by fatboyslimerr - 6/8/16 at 8:55am
    
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post #24717 of 24924
I also have the Asus DirectCUII GTX 780, and I've found that it's quite a finicky card. Some programs are only stable at 1248Mhz/7000Mhz, some I can regularly run for hours on end at 1308Mhz/7200Mhz.

This is on air, with the shroud and both stock fans removed, and two 120mm high pressure fans zip-tied to the heat pipes. I thought about getting a 3d printed shroud to mount on it for even better performance, but right now it stays under 72c running at 1.200v. I used to get slightly lower temps (67c) just after I had applied fresh thermal paste.

The only downside is it seems that I cannot software voltmod my GPU at all. The only way is with a soldering iron and a potentiometer, or getting one of the case-mounted voltage adjustment panels that costs about 100$ standalone or comes with a 300$ motherboard.

But yeah. I've noticed across every card that I've had that it can run at a range of frequencies depending on the program or game.
post #24718 of 24924
Quote:
Originally Posted by Brohem0th View Post

I also have the Asus DirectCUII GTX 780, and I've found that it's quite a finicky card. Some programs are only stable at 1248Mhz/7000Mhz, some I can regularly run for hours on end at 1308Mhz/7200Mhz.

This is on air, with the shroud and both stock fans removed, and two 120mm high pressure fans zip-tied to the heat pipes. I thought about getting a 3d printed shroud to mount on it for even better performance, but right now it stays under 72c running at 1.200v. I used to get slightly lower temps (67c) just after I had applied fresh thermal paste.

The only downside is it seems that I cannot software voltmod my GPU at all. The only way is with a soldering iron and a potentiometer, or getting one of the case-mounted voltage adjustment panels that costs about 100$ standalone or comes with a 300$ motherboard.

But yeah. I've noticed across every card that I've had that it can run at a range of frequencies depending on the program or game.

1248Mhz/7000Mhz or 1308Mhz/7200Mhz at 1200mV ?! bigeyedsmiley.png
Every games or benchmarks runs with 1150MHz/6700MHz at 1212.5mV (max voltage) with software. (As you can see, I have some problems with the bios to reach these values)
If I target 1200MHz, some games crash (GTA V for example) or the card needs more volts. hmmsmiley02.gif
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Ordinateur C70
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post #24719 of 24924
All I did was flash the BIOS to my card after editing it to disable GPU boost. My clockspeed doesn't change while I'm playing. Taking boost clock into account, your 780 might be running about the same or better speed than mine.
post #24720 of 24924
so one of my EVGA 780's is officially 'bad'. Does anyone know or have had experience with EVGA trying to warranty an older gpu like this?
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