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Extract and Flash GTX 970 and 980 Firmware - Zoson's H2O and AIR Custom BIOS - Page 362

post #3611 of 6365
Quote:
Originally Posted by Laithan View Post

This is my BIOS I am currently using, it is for a Gigabyte GTX 980 G1 Gaming rev. 1.0, F3 "DP" BIOS BIOS (Click to show)

Thank you. I managed to run my card stable at 1519@1.212V with good temperatures and adequate power consumption. In Kombustor fury test I have still throttling to ~ 1400Mhz because of power limit. The system consumes 420W and still has not enough for fury test smile.gif Crazy... I don't want to push it hard on air because I'm sure lot of heat would be produced and I think it is not worth of it. Do you really not throttle in Fury test ? How much your card consume then ??
post #3612 of 6365
Please does anyone know if using the regular gamestable 980 air bios on my reference blower model 980 SCs could have have caused any damage to my cards?

I had my cards running on that one for a day before I noticed and flashed them to the blower version. My temps have been hitting mid-high 70s in FC4 and ACU at 1500/7600, with an aggressive fan curve. That's my only concern..
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post #3613 of 6365
[/quote]
Quote:
Originally Posted by misiak View Post

Thank you. I managed to run my card stable at 1519@1.212V with good temperatures and adequate power consumption. In Kombustor fury test I have still throttling to ~ 1400Mhz because of power limit. The system consumes 420W and still has not enough for fury test smile.gif Crazy... I don't want to push it hard on air because I'm sure lot of heat would be produced and I think it is not worth of it. Do you really not throttle in Fury test ? How much your card consume then ??

1519 @ 1.212V is quite nice!

Yes I was using Kombuster V2 and when I upgraded to the latest version I noticed in some of the tests I was now getting a perfcap for power and some throttling after about 1-2 mins. It takes a while to happen so it made it harder to notice. I'm testing a new BIOS now with the power increased and I notice the extra power is helping and it cleared up that pwr perfcap. I'm looking for some opinions on how much might be TOO MUCH. tongue.gif. PS. Gigabyte GTX 980 G1 Gaming rev1 on water.

Can someone please advise me as to how safely max out the power? Thank you in advance! wink.gif
post #3614 of 6365
Quote:
Originally Posted by Laithan View Post

1519 @ 1.212V is quite nice!

Yes I was using Kombuster V2 and when I upgraded to the latest version I noticed in some of the tests I was now getting a perfcap for power and some throttling after about 1-2 mins. It takes a while to happen so it made it harder to notice. I'm testing a new BIOS now with the power increased and I notice the extra power is helping and it cleared up that pwr perfcap. I'm looking for some opinions on how much might be TOO MUCH. tongue.gif. PS. Gigabyte GTX 980 G1 Gaming rev1 on water.

Can someone please advise me as to how safely max out the power? Thank you in advance! wink.gif
[/quote]

Thanks smile.gif I was lucky to get a good chip ASIC 82.5%.

I'm sure you can safely raise both rails by 20 - 30W to 180W. I have 75W rail on 90W and no issues so far. But not sure if it is safe or not smile.gif
post #3615 of 6365
Quick question.

Do we have a guide or fix for asus 970 strix overvolt via bios? Or are we still having to use the asus gputweak program?
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post #3616 of 6365
Thank you Misiak.

Based on the OP (I missed this part at first):

"PCI-E - Power the GPU will draw off the PCI-E socket, don't exceed 75000!

PSU Rail1 & 2 - 6 pin cards will be set to ~75000, but since we know 8pin is just a 6pin with 2 more grounds, you can increase this to as much as 200W depending on the PSU. (200W at 12v = ~17A current draw)

Power Target - This is how you increase the nominal operating power. This also represents the slider in Afterburner, etc. Max should match Max of TDP.

If you set your Max TDP and Power Target higher than the combined power of your rails, you will never be able to reach the specified TDP/Power Target.
So, Remember: PCIE + PSU Rail1 + PSU Rail2 = Max TDP/Power Target
"


So does this mean if I have (2) 8pin PCI-e and I set each one to 188000, multiply that by 2 for each rail, add the PCI-e power of 75000 and I get 451000.
According the OP, I should set my TDP the same so I did that also. I am on water just as a reminder, load temps are below 45C.

Is this correct?
post #3617 of 6365
Quote:
Originally Posted by Laithan View Post

Thank you Misiak.

Based on the OP (I missed this part at first):

"PCI-E - Power the GPU will draw off the PCI-E socket, don't exceed 75000!

PSU Rail1 & 2 - 6 pin cards will be set to ~75000, but since we know 8pin is just a 6pin with 2 more grounds, you can increase this to as much as 200W depending on the PSU. (200W at 12v = ~17A current draw)

Power Target - This is how you increase the nominal operating power. This also represents the slider in Afterburner, etc. Max should match Max of TDP.

If you set your Max TDP and Power Target higher than the combined power of your rails, you will never be able to reach the specified TDP/Power Target.
So, Remember: PCIE + PSU Rail1 + PSU Rail2 = Max TDP/Power Target
"


So does this mean if I have (2) 8pin PCI-e and I set each one to 188000, multiply that by 2 for each rail, add the PCI-e power of 75000 and I get 451000.
According the OP, I should set my TDP the same so I did that also. I am on water just as a reminder, load temps are below 45C.

Is this correct?

Ah, I missed that part as well, good to know smile.gif But with the last part you are correct, you will have max 451W TPD smile.gif

But I don't understand it.

"PSU Rail1 & 2 - 6 pin cards will be set to ~75000, but since we know 8pin is just a 6pin with 2 more grounds, you can increase this to as much as 200W depending on the PSU. (200W at 12v = ~17A current draw)"

Can somebody explain it in real example ? I have one 6 pin and one 8 pin connector. On 6 pin I have set 75W on 8 pin I have 150W. So what is the max. safety wattage for each cable ? It is better to set more on 75W rail or 150W rail ?

Edit:

I found this explanation on one site:

The original 6 pin, 75 watt specification was for a minimum current of 2.08 amps for each +12 volt line, hence 75 watts.

3 +12 volt lines x 2.08 amps each = 75 watts.

However, The 6 pin PCI-e power connector is actually capable of handling more than 75 watts.

3 +12 volt wires x 4.16 amps each = 150 watts maximum wattage.

The two black ground wires were added to handle the increased current. biggrin.gif

So it seems that you can set max. 150W for 6 pin pcie cable. However, I still don't know if 8 pin cable is capable of more than 150W or if 150W is it's limit....

Also good to mention that I'm using just 1 PCIe cable which is split so it is 6 + 8 pin, what do you think it is good idea ? smile.gif Or it's better to use 2 separate cables ?
Edited by misiak - 3/28/15 at 2:28pm
post #3618 of 6365
Quote:
Originally Posted by Laithan View Post


Laithan, how do you calculated that 348000 in power limit table ?? I don't know what I should put there. I have TPD set on 350W and max. power limit on 350W but what is default ?
post #3619 of 6365
Quote:
Originally Posted by misiak View Post

Ah, I missed that part as well, good to know smile.gif But with the last part you are correct, you will have max 451W TPD smile.gif

But I don't understand it.

"PSU Rail1 & 2 - 6 pin cards will be set to ~75000, but since we know 8pin is just a 6pin with 2 more grounds, you can increase this to as much as 200W depending on the PSU. (200W at 12v = ~17A current draw)"
So it seems that you can set max. 150W for 6 pin pcie cable. However, I still don't know if 8 pin cable is capable of more than 150W or if 150W is it's limit....

Also good to mention that I'm using just 1 PCIe cable which is split so it is 6 + 8 pin, what do you think it is good idea ? smile.gif Or it's better to use 2 separate cables ?

Funny you brought this up, I actually just posted about this exact issue earlier today. As you can tell, I've been digging into power now smile.gif
THIS POST (Click to show)
Quote:
Originally Posted by misiak View Post

Laithan, how do you calculated that 348000 in power limit table ?? I don't know what I should put there. I have TPD set on 350W and max. power limit on 350W but what is default ?

That's what I am trying to confirm also. Zoson says you add them all up and that's your TDP and also power limit (make them match). I just think the values for (2) 8-pin sounded a bit high.. and the TDP would be higher than I've ever seen in a maxwell BIOS, so I want to be sure that formula applies to those with 8 + 8 also.

EDIT: Forgot you asked about my defaults. They are 159000 x 2 and 366000.
post #3620 of 6365
I made a step by step video for anyone still having trouble, start to finish. There are timestamps in the video description on YouTube!
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