I just got a GTX970 SSC ACX 2.0 - the third one i own - and this one seems to be voltage locked @ 1.2430 though there are higher values set in the Bios.
 
The ones i got before always got voltage boost up to 1.2620 with performance Bios.
 
Can you confirm that EVGA modified the PCB to be voltage locked or this is just a problem of my card ?
 
 I think i am going to RMA this card since EVGA clearly states that it should have 33% more than default which is 1.2180.
 

Where does it say that voltage will be 33% higher than default?

I thought it said 33% more power target, which I don't think is considered voltage.

"OPT - Optimized Power Target offers 33% more power over reference."

Normally voltage is locked at 1.212v per NVidia.

The power target is not the voltage is what I am getting at.

It isn't a coincidence. When you adjust voltage on cards like a classified or k|ngp|n using the classified controller or the evbot, it doesn't touch the power target. So, therfore, the power target is NOT voltage as I stated earlier.

33% of 1v is .33v. 1.218 +. 33 is not 1.2 anything. Your math wouldn't be 33%.

TDP IS HIGHER, coincidentally, on the reference card, TDP is 145w.. Magically, it is higher on the SSC 2.0 at 145 with the power target that you now own. 145+33% is right around 190. Your card has a max of 187w according to other ssc2.0 owners.

Nvidia locked the voltage at 1.212v on the cards previously, and I am betting you were around for the 780ti classified fiasco where it took EVGA nearly a month to get an unlocked bios out. So, yeah, that has effected things in the past.

Now, back on topic. Your voltage has nothing to do with the power target, hence when in precision you power target and temp are linked together and your voltage is in a separate location. You have no reason to RMA your card.

Don't forget, every card is different and not all cards require the same voltage depending on the parts quality that went into the components. Every bios, even on the classified cards, can have difference depending on memory and specific core that is installed. Your understanding of the 33% is currently not correct, but like RJ says below, feel free to contact EVGA.

Yep i will ask support ... my previous SSC (both 04G-P4-3975-KR) both do 1.262 ... this new one is kinda different.
 
Since maximimum VDDC values of both Perf/dBi bios are higher i assume this one got a hardware lock @ 1.243.
 
Bios Dates/Versions/Values exactly match the ones of the older cards ... IMHO it won't be possible to fix this with a modified Bios.
 
(sorry for the bad math  ... been to early for that here. )
 
 

All of them SSC have Samsung Memory and ASIC Quality is very close.
 
That the third one has different max VDDC kinda annoys me a little
 
NO coil whine or buzzing ... so general build quality is just great.
 
(some goes for the GTX960 SSC+ which i bought a few weeks back)
 

Same Part number and the bios are the same on all cards ... and therefore EVGA must have changed something to decrease the max VDDC.
 
 
 

33% more TDP headroom. Not 33% more voltage.
 
And..side note...Vrel and Vop perfcap 'warnings' don't mean "voltage too high, unstable". Sorry, this is nonsense.
 
I've seen Vrel perfcap flag is always when the maximum voltage is reached. POSSIBLY the upper limit as specified in BIOS, so the last boost clk for me *always* shows VRel. (Funny thing: You can get rid of VRel flag by supplying +13mV in Afterburner, even if the voltage regulator does actually not allow more voltage. Means, Afterburner is fooling the driver the card is getting more voltage, in reality it is not...at least on those cards where you can't set more voltage in Afterburner).

flexy123
33% more TDP headroom. Not 33% more voltage.
 
And..side note...Vrel and Vop perfcap 'warnings' don't mean "voltage too high, unstable". Sorry, this is nonsense.
 
I've seen Vrel perfcap flag is always when the maximum voltage is reached. POSSIBLY the upper limit as specified in BIOS, so the last boost clk for me *always* shows VRel. (Funny thing: You can get rid of VRel flag by supplying +13mV in Afterburner, even if the voltage regulator does actually not allow more voltage. Means, Afterburner is fooling the driver the card is getting more voltage, in reality it is not...at least on those cards where you can't set more voltage in Afterburner).

PerfCap is the tool that shows what limit the card is currently hitting Vrel,Vop means that card can't go over voltage values its operating right now. I just said it in a simple way.
And I can't get rid of Vrel because my card is limited to 1.200V and im using EVGA Precision X that can't actually do that trick.

where do I download Maxwell tweaker?
 

cisek66

flexy123
33% more TDP headroom. Not 33% more voltage.
 
And..side note...Vrel and Vop perfcap 'warnings' don't mean "voltage too high, unstable". Sorry, this is nonsense.
 
I've seen Vrel perfcap flag is always when the maximum voltage is reached. POSSIBLY the upper limit as specified in BIOS, so the last boost clk for me *always* shows VRel. (Funny thing: You can get rid of VRel flag by supplying +13mV in Afterburner, even if the voltage regulator does actually not allow more voltage. Means, Afterburner is fooling the driver the card is getting more voltage, in reality it is not...at least on those cards where you can't set more voltage in Afterburner).

PerfCap is the tool that shows what limit the card is currently hitting Vrel,Vop means that card can't go over voltage values its operating right now. I just said it in a simple way.
And I can't get rid of Vrel because my card is limited to 1.200V and im using EVGA Precision X that can't actually do that trick.

Perfcap is a function available via NVIDIA's drivers and is used in NVIDIA's GPU boost algorithms. It's more an indication than a tool.

Vrel means "reliability voltage". It literally means that the voltage can not go higher in present circumstances without potentially affecting the lifespan of the card and therefore it cannot boost higher at the moment. It does not necessarily indicate the card's GPU voltage ceiling. It can show Vrel when the core is hotter at lower voltages (voltage ceiling reduced at higher temperatures to prolong life).

Reason for complaint is it does not reach the values set in the Bios.
 
I also mentioned that i own two cards of the same model which do 1.262 without bios modding.
 
@ty_ger07
 
When something makes no difference for you that has to apply for others as well ?! not really. 
 
EVGA support said i should RMA it and that something may be wrong.
 
More likely i will keep it since i would receive a used card for my more or less new card.