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NVIDIA GTX 750Ti / 750 (Maxwell) Owner's club - Page 304

post #3031 of 3179
Quote:
Originally Posted by AliNT77 View Post

1.3v ? HOW ? i thought gtx 750/Ti is hard locked to 1.2 :|

That's what all software monitoring says, measure it with voltmeter will tell you different
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Gaming Rig
(13 items)
 
 
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CPUMotherboardGraphicsRAM
I7 3770K 5.0GHz @ 1.394v +.280 Offset (delid) Asus P8Z77-V EVGA 980Ti Classified  16 GB G Skill Trident X 2400mhz CL10 
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3x Samsung 850 Evo 500GB EK Predator 360 w/QDC, Kryonaut TIM EKWB EK-FC780-Classy HWLabs Black Ice Nemesis GTX 280  
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post #3032 of 3179
Quote:
Originally Posted by GTRtank View Post

Honestly man, I dont know how much more your are going to get out of the card. I was able to squeeze out 100mhz more with more voltage, but i wasnt against the thermal threshold. My card with a 1.3v bios hits 45c at 100% load. I wouldn't increase the voltage as it is only going to make the card heat up more. I would try and find a good core clock, and lower the voltage until it is game stable with acceptable temps. Hell, the stock bios may achieve that. Or, if Arctic has a better air cooler than that, I would take a look at that.

I am with you.

I didn't rush the purchase of this card a year ago but didn't check enough the possibilities to fit a bigger card in my ITX rig which was meant to be for light gaming in the first place. just it has changed since my little girl grew up faster than expected so I have more time and we also play games together now:D

I kind of expected facing temps issues looking at the poor man single fan fitted on the card but I got it on a bargain sale and as you can see from the picture, I DIY added a F8 fan on the side which had reduced the temps in heavy gaming by a good 5 to 6 degC (reaching the 75degC with original BIOS as I mentioned)




now more volt more heat,same applies to Mobo&CPU so I guess I have kind of hit a wall with the GPU OCing potential

having said that, when I come back from Europe end of next month, I would like to continue tweaking the BIOS as much as I can to test the stability of my system

when you say you have a 1.3V BIOS, would you be able to share it for me to have a look to further help me?

thanks in advance, again, much appreciated.

Olivier
post #3033 of 3179
Quote:
Originally Posted by AliNT77 View Post

want moar HZ? try lowering XBAR and L2C clocks with a BIOS mod

lowering them will let you reach higher clocks

see this post : http://www.overclock.net/t/1469814/nvidia-gtx-750ti-750-maxwell-owners-club/2960#post_25092538 thumb.gif

feel I am gonna have to read the full thread exhaustively during my holiday to get my head completely around the BIOS features and effect, but thanks for sharing!

Warning: Spoiler! (Click to hide)



Quote:
Originally Posted by AliNT77 View Post

Thanks for the guide

i tested L2C-Xbar @1202 & @1398 on my GTX 750 But they made 0 difference in performance :|

i am running the card @1380core 1500mem and i get 4530 Firestrike GS

can you run some benchmarks to prove the performance difference?

thx thumb.gif


What i have learned from all this chaging settings and tweaking is that maxwell is different from previous gpus.
maxwell chips have a chip wall of some sort.(i think @Mr-Dark said that to me) once you find that max clock no amount of voltage helps.

one day i do an overclock and test it very throughly and to the limits. then the next day it crashes in 5 mins doing some basic task.

so for now i just took my stock bios file and changed to 1398/1600 and am done with overclocking. works great and no issues. and my stock was 1345/1350

and firestrike. what increases your score the most is your memory clock. (maybe because this gpu is memory limited?)

could be my card is a poor sample
post #3034 of 3179
Hello, I am in need of some advice and need a fast reply hopefully before my pc catches on fire or something. smile.gif Note that i am in no way an expert in flashing bioses, gpu's or electronics of any sort so any help is much apreciated, i basically only know what i found on google and i haven't found a similar situation yet, i don't really know what to really search for in this case lol.

I own a Gigabyte 750 ti with a modded bios oc 1400 core and 1500 mem 1.90 v, gpu ran fine after i modded it for a year untill tonight when pc just shut down and would not post. I took the gpu out and it ran fine put it back no post so obviously gpu was at fault, tried gpu with no 6 pin and surprise it posted, well not really but it showed a message to shut down and plug the 6 pin, i did that and again no post.

Now there are out there gtx 750ti with 6 pin and without 6 pin and i thought if it wont run with the 6 pin on maybe if i flash a bios from a card that doesn't require it it will work, i mean i didn't really have much to lose at this point. So i searched for a bios for a card that has no 6 pin and has the same Samsung GDDR that my card has and found a palit gtx 750ti bios and flashed it. And it freaking worked i did not see that coming.

So my question is to anyone that has done something similar, can this damage my motheboard in some way? I mean the card has a TDP of 60w the palit version i mean.
post #3035 of 3179
@Gibbit

I don't think it'll hurt your motherboard. Modded bios' are stuck @ max 1.2v. My 750 ti without a 6pin did fine with 1.2v.

Pretty weird that your card is working without the 6pin on another bios. But it's possible now your 1400MHz core overclock is not stable anymore.
    
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post #3036 of 3179
Thank you for your swift reply, i will not be overclocking it again i just want it to last till i upgrade smile.gif)) i was just concerned since it was a bios from a different manufacturer that it would draw power from the board differently or i dunno have different board wiring i read somewhere that different manufacturers use different components and custom board designs i guess maybe both gigabyte and palit used the same refrence board design only gigabyte added the extra power connector i honestly have no ideea how it is even working, i haven't yet done any gpu intensive tasks like games since i managed to get the gpu working again i just hope it doesn't fry my motherboard or something.
post #3037 of 3179
I had a GTX Titan die on me. The VRM went. Only time it would post a bios display was without the 8 and 6pin installed. So be cautious about using your card.
    
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post #3038 of 3179
Well it just died on me tried some gaming and it just shut down, still im amazed it even ran at all like that. Im curious if i had maybe downclocked it a bit as to use less power or at least capped at 30 fps to reduce core usage, wonder if it would have made a difference since it ran fine for an hour with basic tasks. Anyhow short lived as it was it was interesting, an amaizing card it was the best 60$ i ever spent on a gpu lasted me 2 years.
post #3039 of 3179
Do I have the worst 750Ti here? It's the Asus Strix one, I can do 1330/6000 and even then it occasionally crashes. Fan is on automatic, temps never exceed 59 degrees. I have also raised TDP to 65.5W in BIOS. MSI Afterburner shows that my card is at 1.2 volts straight out of the box. Any suggestions what I should change?
post #3040 of 3179
Quote:
Originally Posted by kaspar737 View Post

Do I have the worst 750Ti here? It's the Asus Strix one, I can do 1330/6000 and even then it occasionally crashes. Fan is on automatic, temps never exceed 59 degrees. I have also raised TDP to 65.5W in BIOS. MSI Afterburner shows that my card is at 1.2 volts straight out of the box. Any suggestions what I should change?

What's the ASIC quality of your GTX 750 Ti? Use GPU-Z to read ASIC quality.
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