No, it was a question for Sajin, sorry for any misunderstanding :)

In the power tables, the first six refer to:
 
TDP
Internal Rail
PCI-E
PSU Rail #1
PSU Rail #2
Power limit
 
I have not been able to find out what the second one "Internal Rail", or the remaining ones in the table after power limit, for that matter.
 
For reference, if you look at your 1420X bios, you have them set to:
 
450
375
66 (75max)
375
375
350 (425max)
 
I noticed you increased the voltages on all of the lower clock states, was this just to ensure stability when the gpu cycles on and off load?
 
By the way, you can tell me to go away if you like, I won't be offended, I just want to learn as much as possible about this, and I have my own bios about 99% ready (my card has crappy 59% ASIC, but I have managed to keep it stable for a solid 8hours of Valley  [4k/0AA]so far at 1430/7400 @ 1.218V).
 

Ugh, just flashed my latest bios in, and now it's being really weird. GPU-Z reports that it should be at my reported core speeds, but when it is under load it runs at my old default speed (1140) and a slightly higher voltage. This has now stopped making any sense whatsoever and it just seems to do whatever it wants. I have compared mine to yours, and the only key differences are the gpu/vram clock speeds, the voltage limits and a slightly different boost table. It is still stable, and I can use afterburner to still boost to my required core speed (alhtough then GPU-Z reports wildly inaccurate clock speeds. Since I have based my bios off the original hybrid bios, do you know if there is something they have locked in that will prevent the default clock speed from being increased via the bios? That's the only thing I can think of atm.
 
I am tempted to simply take yours and reduce the max voltage to something I feel more comfortable for everyday use.

Yeah, I deleted my crappy bios that didn't work and started from scratch off my original one again. I think I had piled edit after edit after edit and probably had one digit off somewhere . Anyway, completely redone, now have everything stable 1405/7400 @ 1.199V with temps in low-mid 40s. No throttling of any kind, have not been able to cause any tdr's so far (which is something considering the latest nvidia drivers are terrible and buggy), although I have still have a load of testing to do. I took a leaf out of your book and basically applied ~+18mV to every clock state to improve stability. Not bad for a 59% asic card. I decided that overvolting wasn't worth it, as I could only max out at 1481 at 1.27V, and that made my temps go up to the high 50s. Even at 1.25V I could only go up to 1450, and temps there were mid-50s. I have to agree with kingpin here, GM200 chips do not like voltage, and 1.2 seems to be the magic number for stability.

also, overvolting the gpu is not the answer, unless your going extreme (LN2 or DICE)
and you can only unlock voltage limits on the 980Ti (not recommended and dont help anyway on air-water) on the Classified or soon to be KPE edition. ( or similar cards from other manufacturers. )

 

Hello fellows,
 
Happy new year for all of you!
 
I  acquired recently my EVGA 980 TI SC Gaming.
 
I tried two times to flash my Bios with the one recommended on 1st page by Sajin and cdc-951 (1420X.rom) , i had every times no signal on screen afterthat, i had to put an other graphic card and load my original bios to get my card back.
 
I followed every instructions listed step by step on the post of Sajin :

Sajin
 
Flashing procedure for single cards:

#1 Move the "980Ti-SC-425-1281mv.rom" vBIOS located inside the 980Ti-SC-425-1281mv folder into the nvflash folder via drag and drop. 
#2 Run command prompt via administrator. 
- Windows 7: Press the start button and type "cmd", right click "cmd" and select run as administrator.  
- Windows 8/10: Press the Windows Key & X keys together, right click "command prompt" and select run as administrator. 
#3 Type the following commands into the command prompt... "cd  c:\users\<your users name here>\desktop\nvflash" without quotes and hit enter. 
- Type "nvflash --protectoff" without quotes and hit enter. (Turns off write protection on the card. Some cards will need to have this disabled before you can flash the card so always perform this command before flashing.) 
- Type "nvflash -6 980Ti-SC-425-1281mv.rom" without quotes and hit enter. 
#4 If you get an error stating "Firmware image PCI Subsystem ID <xxxx.xxxx> does not match adapter PCI Subsystem ID <xxxx.xxxx>" just ignore the error (this error will cause no harm, it's just letting you know you are changing the subvendor on the card.) and continue on flashing by pressing "Y" to override the error. nvflash should now start to flash your modded vBIOS to the card and complete by saying the flash was succsessful. 
#5 Restart PC. (NVIDIA drivers should automatically detect and install the card, if not, you may need to uninstall the drivers and re-install them.)

 

I don't know what could be wrong, my original BIOS version is 84.00.41.00.90, is that possible that 1420X.ROM isn't compatible with my graphic card?
 
Should i try with an other BIOS or it could be dangerous?
 
Btw thanks a lot for your replies , and all my apologizes if my english goes wrong.

Nemesis11
is that possible that 1420X.ROM isn't compatible with my graphic card?

Yes.

I tried that BIOS a while back and I had the same issue. The 1420x.rom did not work with my original 84.00.41.00.90 BIOS.
Tried to do some minor tweaking to it, but ended up going back to stock after failed attempts.

GPU-Z is currently showing 1455mhz but in reality I am getting 1423 cause of the temperature reaching 72c with fans around 55-60 :)

Yes please, I'd like to give it a try =)

Nemesis11, you need 50 posts before you can post links. A workaround until then is to put spaces in the link.

Hi i cant flash my gpu bios plz help, i use this mod Bios "980Ti-SC-425.zip"

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. Alle Rechte vorbehalten.

C:\Users\Raziel>cd..

C:\Users>cd..

C:\>cd nvflash

C:\nvFlash>nvflash -6 x.rom

NVIDIA Firmware Update Utility (Version 5.227)
Simplified Version For OEM Only

Checking for matches between display adapter(s) and image(s)...

Adapter: GeForce GTX 980 Ti (10DE,17C8,3842,4995) H:--:NRM S:00,B:01,PCI,D:00,
F:00

WARNING: Firmware image PCI Subsystem ID (3842.4992)
does not match adapter PCI Subsystem ID (3842.4995).

Please press 'y' to confirm override of PCI Subsystem ID's:
Overriding PCI subsystem ID mismatch
Current - Version:84.00.32.00.94 ID:10DE:17C8:3842:4995
GM200 Board (Normal Board)
Replace with - Version:84.00.32.00.90 ID:10DE:17C8:3842:4992
GM200 Board (Normal Board)

Update display adapter firmware?
Press 'y' to confirm (any other key to abort):
Command id:1000000E Command: NV_UCODE_CMD_COMMAND_VV failed
Command Status:NV_UCODE_CMD_STS_NEW
Error: NV_UCODE_ERR_CODE_CMD_VBIOS_VERIFY_BIOS_SIG_FAIL


ERROR: ERROR:BIOS Cert 2.0 Verification Error, Update aborted

C:\nvFlash>

Raziel86
Hi i cant flash my gpu bios plz help, i use this mod Bios "980Ti-SC-425.zip"

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. Alle Rechte vorbehalten.

C:\Users\Raziel>cd..

C:\Users>cd..

C:\>cd nvflash

C:\nvFlash>nvflash -6 x.rom

NVIDIA Firmware Update Utility (Version 5.227)
Simplified Version For OEM Only

Checking for matches between display adapter(s) and image(s)...

Adapter: GeForce GTX 980 Ti (10DE,17C8,3842,4995) H:--:NRM S:00,B:01,PCI,D:00,
F:00

WARNING: Firmware image PCI Subsystem ID (3842.4992)
does not match adapter PCI Subsystem ID (3842.4995).

Please press 'y' to confirm override of PCI Subsystem ID's:
Overriding PCI subsystem ID mismatch
Current - Version:84.00.32.00.94 ID:10DE:17C8:3842:4995
GM200 Board (Normal Board)
Replace with - Version:84.00.32.00.90 ID:10DE:17C8:3842:4992
GM200 Board (Normal Board)

Update display adapter firmware?
Press 'y' to confirm (any other key to abort):
Command id:1000000E Command: NV_UCODE_CMD_COMMAND_VV failed
Command Status:NV_UCODE_CMD_STS_NEW
Error: NV_UCODE_ERR_CODE_CMD_VBIOS_VERIFY_BIOS_SIG_FAIL


ERROR: ERROR:BIOS Cert 2.0 Verification Error, Update aborted

C:\nvFlash>

You need to get a newer version of NVflash as it seems you are running an older one. Also make sure you run cmd as admin!

Seems i failed in my link, here it is:
 
http://www.filedropper.com/1420v2
 
Could Finally achieve 1578 Mhz  CPU Clock on Water, and 4207Mhz on memory (which seems pretty weird, as normally i had about 2000/2100Mhz) , card never goes up to 50°C, that's my first graphic card watercooled on loop, and i must say i am very impressed by the results of the card under water !
 
Here is the 3DMark link: http://www.3dmark.com/fs/7250185
 
 

My question is -Why do you guys choose to flash a new bios?
I'm new to Nvidia card, but isn't the Core voltage unlocked already?