GIGABYTE GTX 9xx H2O/AIR BIOS Tweaking ?(ô?ô)? - Page 4 - Overclock.net - An Overclocking Community

Forum Jump: 

GIGABYTE GTX 9xx H2O/AIR BIOS Tweaking ?(ô?ô)?

Reply
 
Thread Tools
post #31 of 7845 (permalink) Old 03-12-2015, 01:58 AM
New to Overclock.net
 
amd955be5670's Avatar
 
Join Date: Nov 2011
Posts: 1,186
Rep: 56 (Unique: 37)
Quote:
Originally Posted by taminhncna View Post

NCP 81174 so you can not increase voltage even you change in MBT, it will not work, only way is hardmod

all bios posted is simple change power limit and disable boost, no more voltage here

Not sure what you are smoking. If only I had a DMM and knew where to measure volts. Pretty sure the 980s have NCP81174 as well and they're reporting 1.3~1.325V with a DMM in the other H2O bios thread. Probably my board goes to 1.325~1.3V as well however I pretty much can't move past 1557 regardless.

amd955be5670 is offline  
Sponsored Links
Advertisement
 
post #32 of 7845 (permalink) Old 03-12-2015, 07:50 AM - Thread Starter
Maximum_Unleashed
 
Laithan's Avatar
 
Join Date: Mar 2015
Location: United States
Posts: 3,681
Rep: 498 (Unique: 263)
Quote:
Originally Posted by taminhncna View Post

NCP 81174 so you can not increase voltage even you change in MBT, it will not work, only way is hardmod

all bios posted is simple change power limit and disable boost, no more voltage here

That's what I thought also (Needs a hard mod) but I've been able to conclude through reverse engineering that there is a voltage increase beyond 1.275 (max reported in software), I just don't know how much. I have also read people measuring with a DMM and getting over 1.3v but since I have a full cover WB I can't measure personally.

I found this which describes the NCP81174. Says up to 2.0v. I don't know if there could be something else holding the voltage back.
http://www.onsemi.com/pub_link/Collateral/NCP81174-D.PDF

GIGABYTE GTX 9xx G1 GAMING BIOS Tweaking
  ̿̿ ̿̿ ̿̿ ̿̿̿'̿'\̵͇̿̿\з=༼ຈل͜ຈ༽=ε/̵͇̿̿/'̿'̿ ̿ ̿̿ ̿̿ ̿̿  
░▒▓│ FORKAY‼ «  » WΘΘT ‼ │▓▒░
Xeon E5-1680 V2 (IVY-E) Inside


Laithan is offline  
post #33 of 7845 (permalink) Old 03-13-2015, 02:55 AM
New to Overclock.net
 
Brama's Avatar
 
Join Date: Sep 2013
Location: Milano - Italy
Posts: 40
Rep: 2 (Unique: 2)
Quote:
Originally Posted by Laithan View Post



I found this which describes the NCP81174. Says up to 2.0v. I don't know if there could be something else holding the voltage back.
http://www.onsemi.com/pub_link/Collateral/NCP81174-D.PDF

The VRM controller is indeed able to regulate voltage up to 2.0 V, but video card designer can set limits with resistors connected on certain pins of chip.
If someone is so smart to get the resistors value connected to any pin of VRM controller and design a schematic diagram, I could calculate the max voltage and probably how to go upper.
Unfortunately I have no time to do it by myself, even if I am very curious. smile.gif

PNY GTX970 reference 81% with EK full waterblock
Brama is offline  
Sponsored Links
Advertisement
 
post #34 of 7845 (permalink) Old 03-13-2015, 03:10 AM
⎬⎛⎝⎠⎞⎨
 
TK421's Avatar
 
Join Date: May 2011
Posts: 5,145
Rep: 155 (Unique: 120)
Quote:
Originally Posted by Brama View Post

The VRM controller is indeed able to regulate voltage up to 2.0 V, but video card designer can set limits with resistors connected on certain pins of chip.
If someone is so smart to get the resistors value connected to any pin of VRM controller and design a schematic diagram, I could calculate the max voltage and probably how to go upper.
Unfortunately I have no time to do it by myself, even if I am very curious. smile.gif

Maybe you want to read this up: http://overclocking.guide/increase-the-nvidia-power-limit-all-cards/

nͫٴiͤٴcͫٴeͤ੮Һ૯ ცɿ૭ ૭คעٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴٴ ٴٴٴ
FOR SALE / WTS : ThinkPad P70 / P71 batteries 78++, X1 Carbon Gen 6 ThinkShutter LCD Bezel Assembly
Desktop for gaming
(17 items)
ThinkPad T480
(9 items)
ThinkPad T430 XM
(9 items)
CPU
i7 5820K
Motherboard
X99 Deluxe
GPU
RTX 2080 Ti XC Ultra
RAM
Crucial 4x4GB
Hard Drive
Samsung 950 Pro 512GB
Hard Drive
Samsung 850 EVO 1TB
Hard Drive
WD Black 4TB
Hard Drive
WD Red 10TB
Optical Drive
Dell CH03N BD
Power Supply
EVGA 750 G2
Cooling
Swiftech Drive H360X3
Case
Phanteks Enthoo Luxe
Operating System
Windows 10 Enterprise LTSC 1809
Monitor
BenQ XL2430T
Monitor
ASUS PG279Q
Keyboard
Bloody B850
Mouse
Logitech G102 Prodigy (Mercury)
CPU
i7 8550U
Motherboard
Lenovo Windu-2 20L5
GPU
Intel UHD 620
RAM
F4-3000C16D-16GRS | 2x8GB 2400MHz
Hard Drive
Intel NVME SSD 256GB
Power Supply
Lenovo 65w USB-C
Cooling
Delta 01YR200
Operating System
Windows 10 Enterprise LTSC 1809
Monitor
LP140WF6-SPB7 FHD IPS
CPU
i7 3920XM
Motherboard
Nozomi 4 Type 2344 BZU
GPU
Intel HD4000
RAM
F3-2133C11-8GSRL | 2x8GB 2133MHz
Hard Drive
Samsung 850 Pro 256GB
Power Supply
Lenovo 90W
Operating System
Windows 10 Enterprise LTSC 1809
Monitor
AUO B140HAN01.3
Keyboard
Classic 7-row NMB 45N2211
▲ hide details ▲


TK421 is offline  
post #35 of 7845 (permalink) Old 03-13-2015, 12:54 PM - Thread Starter
Maximum_Unleashed
 
Laithan's Avatar
 
Join Date: Mar 2015
Location: United States
Posts: 3,681
Rep: 498 (Unique: 263)
Quote:
Originally Posted by TK421 View Post

Maybe you want to read this up: http://overclocking.guide/increase-the-nvidia-power-limit-all-cards/

I've seen that article, and it intrigued me but I am not clear on the differences and/or relationships between shunting and modding a bios. Hoping someone might know.

☞ In other words if that method "effectively doubles power", does that mean I should be lowering my power target % down to 50% and start overclocking from that point?

☞ Does it mean I will be sending double the voltage capping at 2.0v? Does the voltage slider in MSI now become useless? I doubt it but how this impacts voltage is unclear.

☞ Does this mean that the increase in TDP in the BIOS becomes irrelevant or does the TDP value actually need to be adjusted?

GIGABYTE GTX 9xx G1 GAMING BIOS Tweaking
  ̿̿ ̿̿ ̿̿ ̿̿̿'̿'\̵͇̿̿\з=༼ຈل͜ຈ༽=ε/̵͇̿̿/'̿'̿ ̿ ̿̿ ̿̿ ̿̿  
░▒▓│ FORKAY‼ «  » WΘΘT ‼ │▓▒░
Xeon E5-1680 V2 (IVY-E) Inside


Laithan is offline  
post #36 of 7845 (permalink) Old 03-13-2015, 03:49 PM
New to Overclock.net
 
OniLink's Avatar
 
Join Date: Jun 2014
Location: Italy
Posts: 89
Rep: 6 (Unique: 4)
The voltage limit is 1312 mV, this is a known value, give a read here:
https://www.overclock.net/t/1517316/extract-and-flash-gtx-970-and-980-firmware-zosons-h2o-and-air-custom-bios

You can set the maximum TDP and Voltage even with the stock cooler, it will never get too hot and it can NOT damage itself. This is the reason behind the voltage hardlimit.


As far I have seen on my card and forums, 1600 MHz is VERY high. It's not hard to achieve it for a benchmark, but gamestable? Meh, you must be god damn lucky.
Most REALLY game stable OCs are around 1500-1540 MHz range.
Do not base your stability on benchmarks alone, game scenarios are a whole different story.
OniLink is offline  
post #37 of 7845 (permalink) Old 03-14-2015, 01:50 PM - Thread Starter
Maximum_Unleashed
 
Laithan's Avatar
 
Join Date: Mar 2015
Location: United States
Posts: 3,681
Rep: 498 (Unique: 263)
I've been hammering my GPUs and I'm down to 1571 gamestable, I just can't seem to get any higher without flashes or artifacts.

SO...Although I am happy with the current BIOS tweaks, and the overclock, I think this may be as far as I can go without hard-modding...

I am wondering if the custom PCB advantages of the G1 only fully reveal themselves with a hard mod?? Are many of the design differences from reference through custom all really just bling? I mean I am watercooling and modding a BIOS and I seem to be getting what the average joe gets on AIR with a reference board...

Am I missing something? lol

GIGABYTE GTX 9xx G1 GAMING BIOS Tweaking
  ̿̿ ̿̿ ̿̿ ̿̿̿'̿'\̵͇̿̿\з=༼ຈل͜ຈ༽=ε/̵͇̿̿/'̿'̿ ̿ ̿̿ ̿̿ ̿̿  
░▒▓│ FORKAY‼ «  » WΘΘT ‼ │▓▒░
Xeon E5-1680 V2 (IVY-E) Inside


Laithan is offline  
post #38 of 7845 (permalink) Old 03-16-2015, 04:36 PM - Thread Starter
Maximum_Unleashed
 
Laithan's Avatar
 
Join Date: Mar 2015
Location: United States
Posts: 3,681
Rep: 498 (Unique: 263)
UPDATE: V3BETA RESULTS
.
̿̿ ̿̿ ̿̿ ̿̿̿'̿'\̵͇̿̿\з=༼ຈل͜ຈ༽=ε/̵͇̿̿/'̿'̿ ̿ ̿̿ ̿̿ ̿̿

Quick recap: The goal of tweaking this BIOS was certainly to gain maximum stable performance. That value for me, may be very different for you. I know my GTX 980's are not silicon lottery so there's only so far they can be pushed (and therefore tested). I have also been doing ALL of my testing in SLI, where overclocking will always be limited to the weaker of the 2 cards. The OVERCLOCK itself and what some might consider "the maximum potential of this BIOS" will depend on the quality of your ASIC.

I'm starting to really look at this BIOS as not only a performance benefit but also somewhat of a 'maintenance' update, improving upon stock in a few ways. I am also able to approximate the voltages based on my testing and reverse engineering. I DO have a DMM but I CAN'T get at the areas to get a reading but my method of reverse engineering really wasn't rocket science. It was basically hacking the BIOS, changing values, re-flash/re-test, see what happens, make notes, repeat...

Let's look at some of the improvements over the stock BIOS:

◄[ VOLTAGE ]►


In MSI-AB the following values will result in approximately:
+00mV = 1.265V <-- reported in software (MAX OBTAINABLE with STOCK BIOS)
+20mV = 1.275V <-- reported in software
+40mV = 1.285V (1281.3V)
<-- still reports as 1.275V in software

It seems that these G1 cards max out at around 1281.3V. Attempting to raise the voltage any higher in the BIOS doesn't improve stability at all in fact it creates PERFCAPS. The VREGs are just not up to the job of anything higher. 1281.3V is the max volts in the latest BIOS. So yes I believe that raising the slider from where I have it now at +40mV --> MAX will do nothing further but you are welcome to experiment, it won't hurt. The key benefit here is that you will be allowed to go a tick or two higher in voltage than stock, which I have confirmed improves overclocking slightly.


◄[ POWER ]►


The G1's can provide plenty of power. There is no reason to handcuff the power, the voltage regulators already have them on. thumbsdownsmileyanim.gif
Don't forget to prioritize on the temp and disable the link. This can lead to throttling on AIR.


◄[ PERFCAP ]►

This is a nice little sensor in GPU-Z for maxwell tweaking because it will simply tell you where the restraints are (power, voltage regulators, sli, etc.). The latest G1 BIOS I am testing at full load is not triggering any PERFCAPS thumbsupsmiley.png





VERSION 3 BETA (Click to show) As always, flash at your own risk. I will update the OP also.

Enjoy! ( ͡° ͜ʖ ͡°)
Attached Files
File Type: zip 980TIF3DPH20V3.zip (136.4 KB, 50 views)

GIGABYTE GTX 9xx G1 GAMING BIOS Tweaking
  ̿̿ ̿̿ ̿̿ ̿̿̿'̿'\̵͇̿̿\з=༼ຈل͜ຈ༽=ε/̵͇̿̿/'̿'̿ ̿ ̿̿ ̿̿ ̿̿  
░▒▓│ FORKAY‼ «  » WΘΘT ‼ │▓▒░
Xeon E5-1680 V2 (IVY-E) Inside


Laithan is offline  
post #39 of 7845 (permalink) Old 03-17-2015, 03:16 AM
New to Overclock.net
 
Brama's Avatar
 
Join Date: Sep 2013
Location: Milano - Italy
Posts: 40
Rep: 2 (Unique: 2)
Quote:
Originally Posted by TK421 View Post

Maybe you want to read this up: http://overclocking.guide/increase-the-nvidia-power-limit-all-cards/

This is related only to power limit.
I was talking about max voltage.

PNY GTX970 reference 81% with EK full waterblock
Brama is offline  
post #40 of 7845 (permalink) Old 03-17-2015, 07:40 AM
New to Overclock.net
 
OniLink's Avatar
 
Join Date: Jun 2014
Location: Italy
Posts: 89
Rep: 6 (Unique: 4)
Quote:
Originally Posted by Brama View Post

This is related only to power limit.
I was talking about max voltage.

Self-quoting like a pro XD read below
Quote:
Originally Posted by OniLink View Post

The voltage limit is 1312 mV, this is a known value, give a read here:
https://www.overclock.net/t/1517316/extract-and-flash-gtx-970-and-980-firmware-zosons-h2o-and-air-custom-bios

You can set the maximum TDP and Voltage even with the stock cooler, it will never get too hot and it can NOT damage itself. This is the reason behind the voltage hardlimit.


As far I have seen on my card and forums, 1600 MHz is VERY high. It's not hard to achieve it for a benchmark, but gamestable? Meh, you must be god damn lucky.
Most REALLY game stable OCs are around 1500-1540 MHz range.
Do not base your stability on benchmarks alone, game scenarios are a whole different story.
OniLink is offline  
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off