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  Topic Review (Newest First)
02-12-2020 02:00 PM
Warboy I'm having trouble unlocking the voltage on a GTX 660 Ti, It only wants to top out at 1.17v regardless of what I change in KPE / Bios
01-03-2018 12:33 PM
Zomby Woof
Quote:
Originally Posted by PimpSkyline View Post

You have to increase the mV when you start to hit the Core limits, but keep temps low.

Ok, I'll give it a try, I've seen a few posts with this card and folks didn't go over +50 on the mV. I reapplied the thermal paste and that's not what has been holding me back, it never reaches 70c during testing.
01-03-2018 12:27 PM
PimpSkyline
Quote:
Originally Posted by Zomby Woof View Post

I'm in the process of overclocking my ASUS GTX 660 Ti DirectCU II using MSi Afterburner and just wondering if the the "Core Voltage (mV)" can be cranked all the way up or is it better to OC with no voltage increase with this GPU.

Also while testing yesterday I found that adding anything more than +60 to the "Core Clock (MHz)" caused crashes when testing. I've read that this model is already clocked high and you may only be able to go go further with the "Memory Clock (MHz), so just wondering if this is the case.

You have to increase the mV when you start to hit the Core limits, but keep temps low.
01-02-2018 11:40 AM
Zomby Woof I'm in the process of overclocking my ASUS GTX 660 Ti DirectCU II using MSi Afterburner and just wondering if the the "Core Voltage (mV)" can be cranked all the way up or is it better to OC with no voltage increase with this GPU.

Also while testing yesterday I found that adding anything more than +60 to the "Core Clock (MHz)" caused crashes when testing. I've read that this model is already clocked high and you may only be able to go go further with the "Memory Clock (MHz), so just wondering if this is the case.
03-27-2017 12:29 PM
Kenrou I have had a MSI 660ti PE 2gb for ~4y on the wife's computer, and it's starting to show it's age on the newer games, so i took it apart for it's 1st thorough clean and re-TIM and temps dropped by around ~20c. All this time it has been at stock, so 1097mhz-1241mhz/6008mhz so i took the opportunity to OC it a little, ended up with +0v 114% +65 +600 (voltage, power limit, core, mem respectively), so it boosts to 1306mhz/7204mhz on stock voltage 1.175v (ASIC is 86.6% if anyone is wondering) at 72c with Heaven on loop 2h 1080p max settings. This is with zero throttling and i'm positive that it can go further if i pump the voltage because neither core or mem threw up artifacts yet. I have had an Arctic Accelero Hybrid III-140 lying around for months that i never got to use that i wanted to install if possible which will further help with temps.

Question time: i ran out of room TDP wise. If you refer to the 1st screenshot - modding the BIOS will only raise the total GPU power, the "normalized" will work as if nothing was changed, anything extra on the voltage or clocks or a very GPU intensive game will hit 98%+ and it starts to throttle. Is there a way around this or a hardmod for this card ?

Full Specs:

CPU: FX-8370, 4.5ghz 1.368v
Cooler: Hyper 212 EVO - SP120 LED 120mm x2
GPU: MSI 660 Ti - N660Ti PE 2GD5/OC
RAM: 2x 8GB Corsair Vengeance Pro 1866mhz 9-10-9-27
Motherboard: Sabertooth 990FX R2.0
SSD: Crucial M4-CT064M4SSD2 64gb
HDD: WD10EZEX 7200rpm 1TB
PSU: Corsair TX750
CASE: NZXT S340 - AF140-LED x3 - AF120-LED x1
OS: Windows 8.1 Pro 64bit







12-18-2016 02:23 PM
lanofsong Hey GTX 660Ti owners,

We are having our monthly Foldathon from Monday 19th - 21st 12noon EST.
Would you consider putting all that power to a good cause for those 2 days? If so, come sign up and fold with us - see attached link.

December Foldathon



To get started:

1.Get a passkey (allows for speed bonus) - need a valid email address
http://fah-web.stanford.edu/cgi-bin/getpasskey.py


2.Download the folding program:
http://folding.stanford.edu/


Enter your folding name (mine is the same as my OCN name)
Enter your passkey
Enter Team OCN number - 37726


later
lanofsong
12-15-2016 11:27 AM
Mingan After quite a bit of time, I managed to RMA my Asus 660ti's and get them replaced. They sent me a 3gb version for the first one that had the power throttling issue, but that ruined my SLI setup, so I requested a trade-in for the other one. They then sent me a Strix 960 4GB that was basically new-in-box except it had been opened on the outside. I requested a trade-in for the first replacement, not really knowing what to expect, managed to get a second Strix 960 4GB, still factory sealed. Considering I spent a total of $400 for the 2 original 660ti's ($300 on the first when it was new, $100 for the 2nd a year before I joined this forum), used them for several years, and managed to trade up...I'm pretty stoked. Yay for another RMA success story. biggrin.gif
09-07-2016 10:21 PM
revengeyo I just found out i removed throttling on kepler loool
It throttles no more when 70c
biggrin.gif

check
https://www.youtube.com/watch?v=eWlLQc9Opwo
thumb.gif
04-15-2016 03:56 AM
Timotei Hey guys. I just overclocked a 660ti, and it is basically smooth, not very impressive. Problem is that MSI Afterburner isn't able to apply the profile consistently when opening/playing 3D applications. It sometimes just runs as if it was idling and I have to press the hotkey to load the profile every time this happens. Quite annoying, so has anyone experienced this, or can you point me to the right place to problem solve my issue? (Tested with various settings: no forced voltage/no profiles/no 2D/3D profiles/No restore after suspend etc.)

Thanks! =)
04-08-2016 11:21 AM
Blinky7 After a year and having tried several cards, I returned to an 660ti just for the fact that they are cheap nowadays and this is an HTPC now.
However this doesn't mean I don't wanna OC it to the max biggrin.gif

Having learned my lesson since last time I ended up here after already having bought an Asus card , this time I went for the people's favourite, the MSI Power Edition.

However I am really disappointed with the results frown.gif The card seems like a complete dud. Even though the ASIC is decent (75%) the card seems to stop at 1202mhz with 1.175v and 1241mhz with 1.212v. I think these numbers are really low.... my old Asus would do 1293 at 1.175v...

Another thing is the power limit. Since last time I learned here the hard way that you need to hardmod those cards. However having later successfully softmodded several cards even Kepler ones (a couple 680s, an 670 and more) I thought the 660ti situation could be softmodded too, I just hadnt done everything correctly.

Well looks liek I was wrong and spesifically the 660ti does need a hardmod (the only kepler core that behaves this way?), as even if I sucessfully up the power limit, the card throttles at 90% TDP, so this must be a hard limit and it totally ignores software (correct?).

Well, at least this power edition can up the voltage of memory and it does +500 stock and about +650 with +vmem. But I am seriously disappointed at the core OC, it's not like it's "only 1254" , I would live with that, but 1202???? ***
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