-
Competitor rules
Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
Is 1.4v safe for a R9 290?
- Thread starter Doogles
- Start date
Thanks I will have a good read after dinner.
Soldato
Yes. I put 1.5v through my Lightning on air. 1.45v max on reference cooling for short bench runs and 100% fan.
Associate
Temps may be fine but are you sure the card isnt throttling to keep those temps?
If that were the case then there is no performance gain.
Soldato
Shouldn't throttle@85c, throttles@95c.
Associate
Depends whether the target temp has been changed or not though. It's a reference design so yeah normally will throttle at 95c by default.
I find it hard to believe you can keep a reference card at 85c when overclocked with raised volts, unless the cooling has been changed or running a very high fan speed which must be a bit noisy.
Just 100% on the fan
I can't hear it over my closed back ATH-M50's 
I don't care about the noise really. Performance is performance!
Closed do come in handy in them scenarios until the case lifts in mid air and you strangle on the power cord around your neck. It can happen was there not a fella on here who broke his monitor a few weeks ago and got his head wedged behind the desk as well?
Caporegime
Benched mine at 1.35v so far, it seemed happy enough.
What sort of clock speeds are you guys seeing with these voltages? How much of an improvement are you seeing from say 1.2v - 1.3v / 1.3v - 1.4v? Surely it'll hit a cliff at some point just like CPU's where by you'll need huge amounts of voltage for just a couple of mhz
Caporegime
Its just for benching, i'm not yet done with seeing what it can do. so far 1200Mhz, i think it will do more.
For 24/7 i run it at 1110/1410 @ 1.25v
1175/5400 @1.4v not sure if it is 100% stable but iirc it is OCCT stable for 5 minutes so needs a BF3/4 Crysis 3 workout.
Soldato
Max I've got so far is 1250/1625 +200mv using gpu tweak, sure there's plenty more but that will have to wait till I've got another 290x and both are underwater.
I never seem to get lucky with overclockers (not the store), I have my i5 3570k that does no more @4.3ghz with 1.35v, two HD 7850's that did 1120/5200 (Which I have now sold) and this R9 290 needs so much voltage
.
Soldato
- Joined
- 14 Feb 2011
- Posts
- 7,490
The max mine did was 1310/1500 +175Mv using TriXX.
It's fascinating how the results vary from card to card... 6 Billion transistors on the silicon wafer, that's mind blowing too!
I am able to run circa 1125/1575 on stock voltage, +81mv = 1175mhz on the core, +100mv = 1190mhz... Running Unigine Valley for just a few loops as I was interested.
I have noticed some odd behaviour in some circumstances. When overclocking the memory, it will be very stable in game, but come to desktop you notice some screen tearing until you back off the memory overclock.
Push the core too far and it'll artifact but also the system will just reboot, like i've hit the reset button. I've never had that behaviour on previous cards.
I am able to run circa 1125/1575 on stock voltage, +81mv = 1175mhz on the core, +100mv = 1190mhz... Running Unigine Valley for just a few loops as I was interested.
I have noticed some odd behaviour in some circumstances. When overclocking the memory, it will be very stable in game, but come to desktop you notice some screen tearing until you back off the memory overclock.
Push the core too far and it'll artifact but also the system will just reboot, like i've hit the reset button. I've never had that behaviour on previous cards.
I noticed that this card was a lot different to my other cards to overclock too, my only other cards I have had though is my HD 7850's so I don't have much experience.