Very low overclock, gtx 770.

The9KGamer · Mar 17, 2015

I have a PNY GTX 770 2gb OC in my system currently and I'm currently attempting to overclock it with MSI afterburner. I can only squeeze out about +30Mhz Core and +75MHz memory about before the graphics driver or games start crashing, I haven't really played with the Voltage at all since it only goes up to +12mV for some reason and it also seems to make the card a lot less stable, I also have the power limit set to 104% because I don't want the card possibly going over 90 degrees.

Am I doing something wrong? First time overclocking and normally the increase I see around the internet for most gpus is much larger.

System Specs
CPU: AMD Phenom II X6 1055T
CPU Cooler: Cooler Master Hyper 212 EVO
Motherboard: Asus M5A97
RAM: 8GB [4gb x 2] DDR3-1600
PSU: 750W Corsair Gold PSU
Storage: 1TB HDD and 500GB SSD
Sound Card: Sound Blaster Z
Case: Cooler Master Storm Stryker

Bossyfins · Mar 17, 2015

What is the GPU temp under load? If it is running to hot, then it will not allow very high OCs.

The9KGamer · Mar 17, 2015

If I stress test it with FurMark it'll hit 90 degrees within a minute and for games like Shadow Of Mordor it'll sit somewhere between high 70's when not too much going on to high 80's once more stuff starts to happen and maybe even a 90 for a second or two.

Bossyfins · Mar 17, 2015

Yea make your own fancurve that keeps the temps under 75c. Then try to OC

The9KGamer · Mar 17, 2015

I have it so at 70 Degrees the fan speed is at 90% and once it hits 80 Degrees + it's at 100% already

Bossyfins · Mar 17, 2015

it shouldnt be reaching 80 though... Have you replaced the thermal paste?

The9KGamer · Mar 17, 2015

No, I haven't messed with anything physical on my GPU since I've bought it.

iam2thecrowe · Mar 17, 2015

if the card is getting to nearly 90C then your not going to get much of an oc out of it. Time to give your pc a dusting if you havnt already, you can also try re-apply thermal paste for the gpu, if the gpu is a few years old the tim may have deteriorated.

Bossyfins · Mar 17, 2015

Thats what I was thinking...

The9KGamer · Mar 17, 2015

The GPU is only a bit more than a year old but I'll give it a dusting and try the paste if that doesn't work, will post results when I do

The9KGamer · Mar 18, 2015

Dusting helped a bit I now top out at 87 degrees with furmark running instead of 90+, haven't tried thermal paste yet but could the fact that I have my sound card only like 5cm below one of my 2 gpu fans have something to do with it?

Bossyfins · Mar 18, 2015

No, it shouldn't be that big of an issue... I still feel it is the thermal paste, but you could try moving the card down, that might be something, but try this. Open the side panel, and place a fan next to the card. THen retry testing

The9KGamer · Mar 18, 2015

I actually don't have any fans I can use for that since I live in QC, Canada I never had any need to buy any sort of fans apart from ceiling ones. Should I try adding 2 120mm intake fans to the bottom of my case? I was thinking of Thermaltake Pure Series 12 since they're only 11$ a piece. My current air flow setup is something like this: http://fulltower.computer-parts-store.com/images/Cm_Storm_Scout_10_large.jpg minus the bottom ones of course. I'd like to avoid messing with the physical aspects of the gpu as much as possible because I'm not 100% sure how the warranty on these things work.

The9KGamer · Mar 21, 2015

Just applied some Arctic Ceramique 2 after cleaning the gpu and adding new fans, so far it actually runs hotter but that just may be because it hasn't fully set yet, will post in a week or two for update

Bossyfins · Mar 21, 2015

That may mean that there are air bubbles in it. Remove the GPU again. and look at it. Post a picture if you want, but it should be spread out and no pockets

tsnor · Mar 21, 2015

Aside, not all card overclock well. If they did then Manufacturers would set the factory default higher. Use MSI or GPU-z to see your stock voltage and compare to other 770s. If you stock voltage is high then your chip probably is not a good OC'ing chip. If you use GPU-z and click the icon in upper left on the first page there is a "read ASIC quality" function. ASIC means the GPU chip (application-specific integrated circuit)

Aside2: many card manufacturers SORT the GPUs they get based on how high they can OC, then sell the higher OC'ing GPUs on higher OC'd boards for more money. If PNY sells a GTX 770 with a higher OC then your card odds are your GPU would have been used on the higher OC board if it worked there.

The9KGamer · Mar 22, 2015

Wow what a difference that made, used the pea dot method to reapply the thermal paste again and after stress testing my gpu for 3 mins its only at 74-75 degrees compared to the 90+ it would get in like thirty seconds before, no pictures needed, the line method sucked lol. Should I try bumping up my MHz's again now?

Also @tsnor my idle VDDC is 0.9500V and under heavy use it goes to 1.0750V and can spike up to 1.1200V for a few seconds. The ASIC Quality ( still have no idea what that is) says 87.6%

The9KGamer · Mar 22, 2015

Tried overclocking again, went from +30MHz Core and +100MHz Memory to +60MHz Core and +200Mhz Memory.
Thing is though it still feels really low because the Core Voltage bar slider out at +12mV and the Power Limit % maxes at 106% in msi Afterburner while the temperature now tops out at around 73-75 degrees, anything else that can be done here or is this about as much as I'll probably get?

Bossyfins · Mar 22, 2015

This might be as much as you get. Its all about the Silicon lottery.. YOu either get a great card that OCs to heaven, or one that doesnt get anywhere...

The9KGamer · Mar 22, 2015

That's fine, learnt a decent bit atleast and may have saved my card a decent bit of lifespan XD , thanks for the help everyone, especially you Bossy!

Bossyfins · Mar 22, 2015

No problem

Happy to help

Very low overclock, gtx 770.

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