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Zotac 970? - Page 22

post #211 of 902
What's the problem with the power limit? Can someone explain me? I'm thinking to buy omega edition. You can set PL to 106% right? But where's the problem when gpu z shows 60% TDP? The card is throttling? And why throttles when gpu z shows 60%? The clock rates reduces right?
Edited by BlackDevil9 - 10/21/14 at 11:31am
post #212 of 902
Quote:
Originally Posted by DaveLT View Post

Power limit not so much temperature.

That's correct, you can check what is limiting the performance with GPU-Z or Afterburner. At my top stable OC, it always shows PL as the exclusive culprit.
post #213 of 902
Quote:
Originally Posted by matus View Post

@lizardta: I get throttling when I push 1540-1550mhz and set voltage to max 1.21. In my experience, lowering the voltage (or just keeping it at default) prevents throttling. Though, if I set it too low the driver crashes. My impression is that there is a clock-voltage sweet spot. It's something like 1530@1.14-1.16V mhz. Following my theory, I tried to find the optimal clock partner for 1.21V but had little success biggrin.gif
I test for stability with single run (~5minutes) of Unigine heaven benchmark.

I didn't do much crosschecking, but from what I saw, firestorm looked consistent to me (well apart from the PL)

I have also noticed this lowering of V core back to about 1.14-1.18V seems to reduce throttling. I will experiment further and see if I can find the holy grail.

I have benched at 1525mhz (with RAM at 7700) for 30 mins on Valley Extreme HD with no issues. Also have just got off the back of a 3 hour constant gaming cycle on CoH2 with some real Meat grinder 4v4 and had no issue (Max temp 55).

With an unlocked TDP and the ability to use something I have more confidence in (e.g. AB) I am excited to see what this card can achieve.

I would advice people to just give it a bit of patience, seems like its got the bits just no the brains this cards at the moment.
post #214 of 902
So I looked up videos of EVGA gtx 970 ocd to 1500 and in valley the GPU never even hit 60c. Meanwhile stock/ocd WITH custom fan profile at 80% my zotacs hitting above 80c (i have it set to throttle past 81c).

I touched the heatsink and the fins/pipe are lukewarm to the touch, so is it making bad contact?

This combined with the locked voltage is making me try to contact NCIX to see if i can return this for an evga or gigabyte or msi.
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post #215 of 902
Quote:
Originally Posted by clerick View Post

So I looked up videos of EVGA gtx 970 ocd to 1500 and in valley the GPU never even hit 60c. Meanwhile stock/ocd WITH custom fan profile at 80% my zotacs hitting above 80c (i have it set to throttle past 81c).

I touched the heatsink and the fins/pipe are lukewarm to the touch, so is it making bad contact?

This combined with the locked voltage is making me try to contact NCIX to see if i can return this for an evga or gigabyte or msi.
ACX or that blower? Keep in mind the ref blower has a massive vapor chamber so that maybe the answer for low temps. The zotac is built to be a small card

Yes it's making bad contact.
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post #216 of 902
Quote:
Originally Posted by DaveLT View Post

ACX or that blower? Keep in mind the ref blower has a massive vapor chamber so that maybe the answer for low temps. The zotac is built to be a small card

Yes it's making bad contact.

The video i watched were the ACX 2.0. The thing is I started searching around for other people with amp! omegas and they all seem to have the incredibly high temperatures. I don't buy this "small card" thing. The amp omega takes up 3 slots, while the acx 2.0 fits two slots AND has lower temps. I'm not willing to take the zotac apart as it's still under warranty and i don't want to jeopardize its return.
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post #217 of 902
Quote:
Originally Posted by clerick View Post

So I looked up videos of EVGA gtx 970 ocd to 1500 and in valley the GPU never even hit 60c. Meanwhile stock/ocd WITH custom fan profile at 80% my zotacs hitting above 80c (i have it set to throttle past 81c).

I touched the heatsink and the fins/pipe are lukewarm to the touch, so is it making bad contact?

This combined with the locked voltage is making me try to contact NCIX to see if i can return this for an evga or gigabyte or msi.

Running a single loop of a benchmark on my G1 gets me temps of 58-59c, yet I've hit upwards of 78c after hours of gaming with a mild oc; running a benchmark is in no way indicative of a cards max or average temp unless looped for hours. You also don't know if the setup was in a close cased, had good airflow, an open bench etc...; NEVER compare max temps, only compare deltas over ambient, otherwise your going to disappointed with you're temps unless you have a superb setup.

Getting a EVGA card is probably the worst choice. The only thing they have going for them right now is the warranty, even with the FTW they cheaped out on the pcb rehashing a 760pcb, 4+1 phase design, NO VRM COOLING (not even a heatsink). There are just so many negatives about EVGA's line-up of 900 series cards, sure they may run fine but they're pitiful compared to the other 970's on the market.
Edited by rv8000 - 10/21/14 at 12:46pm
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post #218 of 902
Quote:
Originally Posted by rv8000 View Post

Running a single loop of a benchmark on my G1 gets me temps of 58-59c, yet I've hit upwards of 78c after hours of gaming with a mild oc; running a benchmark is in no way indicating of a cards max or average temp unless looped for hours. You also don't know if the setup was in a close cased, had good airflow, an open bench etc...; NEVER compare max temps, only compare deltas over ambient, otherwise your going to disappointed with your temps unless you have a superb setup.

Getting a EVGA card is probably the worst choice. The only thing they have going for them right now is the warranty, even with the FTW they cheaped out on the pcb rehashing a 760pcb, 4+1 phase design, NO VRM COOLING (not even a heatsink). There are just so many negatives about EVGA's line-up of 900 series cards, sure they may run fine but they're pitiful compared to the other 970's on the market.

I took my mobo/gpu/cpu out of the case and the card still hits above 85c in seconds, where as the acx 2.0 card shown/demod were inside a case. There is definitely a problem with the contact to the core as the heat pipe/fins are barely lukewarm to the touch while the core reports 90c temps.
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post #219 of 902
Quote:
Originally Posted by clerick View Post

I took my mobo/gpu/cpu out of the case and the card still hits above 85c in seconds, where as the acx 2.0 card shown/demod were inside a case. There is definitely a problem with the contact to the core as the heat pipe/fins are barely lukewarm to the touch while the core reports 90c temps.

Reseat/repaste the card, if there are still problems rma. If you don't want to want to bother or risk issues with the warranty return the card. Get a strix, G1, or MSI gaming, the EVGA cards aren't worth it.
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post #220 of 902
Quote:
Originally Posted by rv8000 View Post

Reseat/repaste the card, if there are still problems rma. If you don't want to want to bother or risk issues with the warranty return the card. Get a strix, G1, or MSI gaming, the EVGA cards aren't worth it.

I think the other problem might be that the card is being chocked on exhaust. The entire front area of it is covered with a heatsink, so the fans are blowing directly into the card and the only exhaust room is on the sides of it which are minor in comparison.
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