I recently purchased and installed a new EVGA GTX 750 TI FTW. Keep in mind this is the one with a PCIe 6-pin connector.
 
I noticed during benchmarking and in games that the maximum power usage or TDP was only reaching about 52% and the clocks are constantly being throttled up and down even during gameplay.
 
I took a look at the BIOS under the Power Table and the TDP values don't seem right. There are 3 sets of TDP values with Min, Def, and Max in each set. Here are what they are set for:
 
Min 30000mW
Def 52000mW
Max 52000mW
 
Min 70000mW
Def 70000mW
Max 70000mW
 
Min 30000mW
Def 52000mW
Max 52000mW
 
It appears to me that the card is limited to pulling no more than 70watts from the PCIe slot, but that the overall power the card can use is only 52watts. Wouldn't this card be able to have a TDP of around 150watts since it can use 75watts from the slot and another 75watts from the 6-pin connector?
 
I feel that the BIOS on my card is limiting the performance capabilities. I am also thinking that it wouldn't be throttling so much if the BIOS was allowing it to use more power. I understand that Maxwell is supposed to be energy efficient, but what if we want to use the full performance potential of our 750 TI's? Why is it so limited?

Would it void warranty to mod BIOS myself? Or would I just need to re-flash the factory ROM if I ever needed RMA?

Thank you Billy R.
 
I've been considering adding my 750 Ti FTW to my water loop and I have some minor BIOS mods saved as a ROM but I just haven't flashed it yet. I'll just keep the factory cooler in undamaged condition to replace and save the factory BIOS ROM to flash back to the card in case I ever need to RMA.
 
I don't know if you would have this information, but how exactly is the 6-pin PCI-E connector providing power to this specific card? Is it configured to provide power in the same way it does on video cards that require the extra power connection/s to function or is it in some way just helping with stability and not really providing a 75watt power source to the card?
 
It almost seems like the BIOS is limiting the total power that the card can use at anytime to 52watts. Is the VRM/power delivery portion of the card electrically capable of providing more than 52watts given that the BIOS is configured for higher TDP limits?

The EVGA GTX 750 Ti FTW does not allow 60W like you say they are claiming. The maximum TDP value for this card is 52W. That came straight from my brand new 750 Ti FTW's factory BIOS. I loaded the saved ROM of the factory BIOS in KBT and under power table the highest maximum TDP was 52W.

I have overclocked the card up to 1375MHz core and 6500MHz memory. But, even if I downclock it, I get VOp in GPU-z.
 
I have no throttling issues now though since I increased max TDP limit in BIOS to 125000mw
 
 
BIOS version is 82.07.32.00.50 (P2010-0050)

sahafiec
isn't 125000mv a bit too much, even if you don't reach it?
may it be a warranty problem in case you need RMA one day!?
 
your bios version is higher than the one tested by the overclockers.

It is mw not mv.

I have no idea, should I maybe try 90000mw-100000mw(90W-100W)? Keep in mind though that the PCI-E slot can provide 75W and the 6-Pin PCI-E connector from the PSU can provide 75W as well. So 75W from slot + 75W from 6-Pin connector=150W. I'm at like 16 2/3% below 150W.
 
What do you mean my bios version is higher? What are most EVGA GTX 750 Ti FTW BIOS versions?

I just bought this card. I found this post and would also like to know more about the power table entries.

bumped for phone tech to see.
 
edit: Im adding this other inquiry by DarkVolker  as its relevant to me and I figure the PM team may have some insight into it.
 

DarkVolker
I am wanting to find out if there is any information on measuring the exact voltage that is being supplied to the GM107 GPU on the EVGA GTX 750 Ti FTW model(02G-P4-3757-KR). I know there are all sorts of applications that report the voltage, but it has been brought to my attention by a number of people that I am trying to help out here that different cards of the same model report different voltages.
 
So is there any documentation on which solder points can be used to take a voltage measurement with a digital multimeter of the exact voltage being supplied to the GM107 GPU on this model?
 
Thanks!

So, this is the followup I got, posting it here if its any help for anyone. didnt really help me much tbh.
 
"Following up with a request that was submitted regarding some further information about the EVGA GTX 750 Ti FTW. 
 
The request was sent directly to our Product Management team for further reviews.  This is the information that was provided:   The GTX750Ti/GTX750 are first Maxwell products with integrated power sensor in IC, but the integrated power sensor is not linear and scale for reporting. The TDP setting in our BIOS is 52W and this value should equal to 96W real TDP.
 
I hope these helps clear up any questions, should you have any other concerns, please feel free to contact us again."
 
does nothing to help me figure out the power tables.
Doesnt address the fact that while overclocked these cards are bouncing/throttling because theyre starved for power 
Doesnt address the second part of my question regarding voltage on this card.