980 Ti BIOS issue

[XCalinX]

Hey guys,

When I bought my 980 Ti waterblock I flashed the BIOS so I can get more than 1400. I got 1500 after I played with the maxwell bios editor but I only set the voltage to 1.23v and in order to get even more than 1500 I need more voltage. But the problem is every single adjustment I make to the BIOS, even just increasing the voltage makes it be stuck at 405 MHz after the flash. I tried to add more MHz but when I click the apply button nothing happens and it still reads 405. In BF4 I get 22 FPS with 405 Mhz lol. I don't know what to do, the only solution is to flash it back to the previous 1500 BIOS but like I said I can only get 1.23v. I tried multiple overclocking softwares like Afterburner, PCX and GPU Tweak 2 and the same things happens across all of them. I really don't know what to do. Anyone got any ideas:? Thanks

[Curufinwe_wins]

Hey guys,

When I bought my 980 Ti waterblock I flashed the BIOS so I can get more than 1400. I got 1500 after I played with the maxwell bios editor but I only set the voltage to 1.23v and in order to get even more than 1500 I need more voltage. But the problem is every single adjustment I make to the BIOS, even just increasing the voltage makes it be stuck at 405 MHz after the flash. I tried to add more MHz but when I click the apply button nothing happens and it still reads 405. In BF4 I get 22 FPS with 405 Mhz lol. I don't know what to do, the only solution is to flash it back to the previous 1500 BIOS but like I said I can only get 1.23v. I tried multiple overclocking softwares like Afterburner, PCX and GPU Tweak 2 and the same things happens across all of them. I really don't know what to do. Anyone got any ideas:? Thanks

A few quick things...

1 until you start adding a shit load of voltage, gm200 HATES ADDITIONAL VOLTAGE AND WILL DO WORSE NOT BETTER. Even 1.224 (which is the nvidia software limit that most bios iterations can't bipass) is often higher than the optimum voltage for gm200. (Which tends to be around 1.9-2.1V)

2. Gm200 tends to get power cramped and temperature constrained. Gm200 hits power walls at 310-320W and making sure you can supply at least that much in the bios will help keep clock rates up. Also above say 68-70C gm200 shows a very small decrease in clock stability so again voltage isn't always better.

4. Unless you know EXACTLY WHAT YOU ARE DOING NEVER try to mod voltages on Maxwell. There are so many different important secondary voltages that chances are you will just crash your card continuously (as apparently is happening to you now.)

5 and finally. I can't see your Sig, but reference pcb 980ti won't hit 1500. It just won't. Even the hybrids hit brick walls on power delivery (gm200 is really finicky with power modulation) at around 1480-1490. That said assuming you have a custom card 1500 should be easy to reach with boost clocks included (should be around 1260-1300 base clock) and I've not heard of a custom card that can't sit stable at least to 1482 when not thermally limited.

[XCalinX]

A few quick things...

1 until you start adding a shit load of voltage, gm200 HATES ADDITIONAL VOLTAGE AND WILL DO WORSE NOT BETTER. Even 1.224 (which is the nvidia software limit that most bios iterations can't bipass) is often higher than the optimum voltage for gm200. (Which tends to be around 1.9-2.1V)

2. Gm200 tends to get power cramped and temperature constrained. Gm200 hits power walls at 310-320W and making sure you can supply at least that much in the bios will help keep clock rates up. Also above say 68-70C gm200 shows a very small decrease in clock stability so again voltage isn't always better.

4. Unless you know EXACTLY WHAT YOU ARE DOING NEVER try to mod voltages on Maxwell. There are so many different important secondary voltages that chances are you will just crash your card continuously (as apparently is happening to you now.)

5 and finally. I can't see your Sig, but reference pcb 980ti won't hit 1500. It just won't. Even the hybrids hit brick walls on power delivery (gm200 is really finicky with power modulation) at around 1480-1490. That said assuming you have a custom card 1500 should be easy to reach with boost clocks included (should be around 1260-1300 base clock) and I've not heard of a custom card that can't sit stable at least to 1482 when not thermally limited.

So, in a nutshell watercooling the card was a waste of money, right? Also yes I did hit 1500 stable on the reference but anything above crashes

[Curufinwe_wins]

So, in a nutshell watercooling the card was a waste of money, right? Also yes I did hit 1500 stable on the reference but anything above crashes

Uhh imho yes. Gm200 has such a hard core clock wall it doesn't pay.

[XCalinX]

Uhh imho yes. Gm200 has such a hard core clock wall it doesn't pay.

But still... why does the 405MHz thing happen?

[Curufinwe_wins]

But still... why does the 405MHz thing happen?

Sounds like you are crashing even before you boot up.