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post #1 of 21 (permalink) Old 01-13-2020, 01:39 PM - Thread Starter
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Min fan speed too high???

Hello, i need some help from the GPU gurus... I just bought a Gigabyte single fan 1650 ITX card and all is fine, except for one thing... The minimum fan speed is 56%. There is no way to change it. Even MSI Afterburner when you first launch it, it shows 56% on the extreme left of the sliding bar. I can only increase the fan speed (max fan speed is 2955rpm, sounds like an airplane). This 56% produces 1655 rpm, which on an 80mm fan, is noisy. The fan correctly revs up as the GPU heat rises, but never goes lower than 56%. I tried also the "AORUS Engine" program by Gigabyte, which shows 35 as initial value, but doesn't really work either. You can manually only raise the rpm, not lower it.

Now, i 've googled a lot and ironically, i 've found a similar EVGA case:
https://forums.evga.com/1070-FTW-Hyb...-m2606227.aspx

I 've also contacted Gigabyte support, but it's not like i trust them, so i thought to ask here. Is this "normal"? A BIOS hardlocked value perhaps? Or could it be a defect? I find it odd, that a card that is made to fit very small cases, would be locked to min fan at 56%, which is noisy. UNLESS, they thought that since ITX is small, better give it high RPM to avoid overheating?

I can of course dismantle everything and put on it an arctic accelero L2 plus cooler, since i have one. But i had to ask.

I also found a thread mentioning that sometimes you can edit BIOS to change the values or rpm speed. Is there such a tool that i could use for 1650 (Turing?).

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post #2 of 21 (permalink) Old 01-13-2020, 01:58 PM
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Quote: Originally Posted by Undervolter View Post
Hello, i need some help from the GPU gurus... I just bought a Gigabyte single fan 1650 ITX card and all is fine, except for one thing... The minimum fan speed is 56%. There is no way to change it. Even MSI Afterburner when you first launch it, it shows 56% on the extreme left of the sliding bar. I can only increase the fan speed (max fan speed is 2955rpm, sounds like an airplane). This 56% produces 1655 rpm, which on an 80mm fan, is noisy. The fan correctly revs up as the GPU heat rises, but never goes lower than 56%. I tried also the "AORUS Engine" program by Gigabyte, which shows 35 as initial value, but doesn't really work either. You can manually only raise the rpm, not lower it.

Now, i 've googled a lot and ironically, i 've found a similar EVGA case:
https://forums.evga.com/1070-FTW-Hyb...-m2606227.aspx

I 've also contacted Gigabyte support, but it's not like i trust them, so i thought to ask here. Is this "normal"? A BIOS hardlocked value perhaps? Or could it be a defect? I find it odd, that a card that is made to fit very small cases, would be locked to min fan at 56%, which is noisy. UNLESS, they thought that since ITX is small, better give it high RPM to avoid overheating?

I can of course dismantle everything and put on it an arctic accelero L2 plus cooler, since i have one. But i had to ask.

I also found a thread mentioning that sometimes you can edit BIOS to change the values or rpm speed. Is there such a tool that i could use for 1650 (Turing?).

How about if you click off auto on the fan and set a fan curve.

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post #3 of 21 (permalink) Old 01-13-2020, 02:05 PM - Thread Starter
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Quote: Originally Posted by Turtle Rig View Post
How about if you click off auto on the fan and set a fan curve.
I tried it. It doesn't work. It simply ignores anything lower than 56%. You can increase speed, but can't decrease it. At first, i thought the fan PWM wasn't working. But then i stresstested and saw that the fan speed increases as expected when the heat goes up. Only you can't make it go down.

It's a crazy GPU. Its clock even goes beyond the declared boost. In HWInfo, i saw a max boost clock of over 1700Mhz, without me running OC or something, while the offficial max boost is 1680Mhz, as per Gigabyte website.

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post #4 of 21 (permalink) Old 01-13-2020, 02:12 PM - Thread Starter
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Here it is... Theoretically, max boost is 1680Mhz (both the Gigabyte site and GPU-Z say it). Well, in practice, it boosts to 1740Mhz! Without me OCing or anything. Right now i haven't even Afterburner installed and i only run the basic nvidia driver (without the "Geforce gaming experience" part or whatever the name is).


It's like someone in Gigabyte was having fun and created a supercharged BIOS which boosts...everything.
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Last edited by Undervolter; 01-13-2020 at 02:17 PM.
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post #5 of 21 (permalink) Old 01-13-2020, 03:36 PM - Thread Starter
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This GPU gets weirder and weirder... I tried a game (Shogun2) and the GPU boosts to...1935Mhz! At first i thought it was HWInfo misreading. So i ran at the same time GPU-Z. Average is 1741Mhz. Still, neither should be happening on paper, but it happens...
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post #6 of 21 (permalink) Old 01-13-2020, 03:39 PM
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Totally normal. Advertised boost is the minimal boost it will run. The dynamic boost will clock it higher if temps and power limit is not reached.

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post #7 of 21 (permalink) Old 01-13-2020, 03:52 PM - Thread Starter
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Quote: Originally Posted by Imprezzion View Post
Totally normal. Advertised boost is the minimal boost it will run. The dynamic boost will clock it higher if temps and power limit is not reached.
Oh, much like the CPUs then! GPUs have evolved more than i thought! So the only strange matter remains the fan speed... Thank you!

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post #8 of 21 (permalink) Old 01-13-2020, 04:11 PM
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On the old cards from years ago, there was a minimum fan speed value that was set in the card's vBIOS. You would then not be able to go lower than that speed setting with your manual fan speed setting. Maybe it's still the same on the current cards?

The way to solve it in the past was by modding the vBIOS (there were simple to use tools to do that), and then flashing that modded vBIOS. I don't know if that's still possible. I heard something about NVIDIA using encryption to prevent modding.
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post #9 of 21 (permalink) Old 01-14-2020, 05:47 AM - Thread Starter
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Quote: Originally Posted by deepor View Post
On the old cards from years ago, there was a minimum fan speed value that was set in the card's vBIOS. You would then not be able to go lower than that speed setting with your manual fan speed setting. Maybe it's still the same on the current cards?

The way to solve it in the past was by modding the vBIOS (there were simple to use tools to do that), and then flashing that modded vBIOS. I don't know if that's still possible. I heard something about NVIDIA using encryption to prevent modding.
Yeah, i am pretty sure it's a BIOS problem, i just don't know if it's common to all GPUs of my model or it's a defect with mine... I found a flash utility and a bios from MSI Aero ITX 1650 which seemed very similar in specs and i managed to crossflash it. That didn't go well... I thought i bricked the card, because all screen was pink with small squares and a bit was coming out of this pink cloud when you were clicking and i barely managed to flash back the original bios (thank God i had it backed up).

No reply from Gigabyte support yet. The problem is, even if i put an artcic accellero on it, it will still run at 56% at idle. Which should be around 1200 rpm. Which should be much quieter than the current fan. But what if it's a defective GPU and not just a BIOS quirk common for the model... The reply from the esupport would be welcome at this point, but i doubt it will come soon...

As for EDITING the current BIOS, i found nothing useful by googling and i 've no idea how to do it myself if it involves ASCII and such.

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post #10 of 21 (permalink) Old 01-14-2020, 06:29 AM
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Easy way to fix it.... water cool it


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