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[Official] AMD R9 280X / 280 & 270X / 270 Owners Club - Page 525

post #5241 of 9745
Quote:
Originally Posted by Roboyto View Post

What 80+ rating is that PSU? I'm only using a 450W PSU at the moment, it is 80+ Gold rated however. Rosewill Capstone PSUs are an extremely great product for the price! Usually made by Superflower with wonderful performance under all ranges of load.

I fully intend to find the maximum clocks for this card and will have my i7 3770k pushing at least 4.5Ghz
I'll let you know if I run into any power shortage from my PSU :-)

Yes, the 270x devil's clocks are pretty high! I'll be waiting the results of your 270x devil! :thumbsup: I hope you have a magical card there biggrin.gif The reviews says that it can't qualify for 80+ certification cause it doesn't have a PFC circuit, though the efficiency of the PSU is at 80~85%. Overclocks everywhere! Thanks! :thumbsup:
Quote:
Originally Posted by bardacuda View Post

What the power limit does is, it will throttle the voltage and/or clocks to stay within a certain TDP range. So say your card has a TDP of 150W, but you apply an overclock that would cause it to draw 160W under load, it will throttle to a lower power state while under load, reducing performance.

Increasing this slider does not cause it to suddenly draw any more power than it normally would anyway....it just increases the point at which your card will throttle.

Normally you don't need to do anything with this as it will still stay under the TDP even with a healthy overclock, although with my ASUS 270 I had to put it at +20% to keep from throttling as the BIOS rates the TDP at a measly 113W (which is less than it needs to be so I just modded the BIOS to make it have a 136W TDP and leave the power slider at +0%....same diff)

So basically it's fine to increase this as much as you want and as long as you keep an eye on your temps and don't apply harmful voltage levels it is safe, but if you want it to be useful as a failsafe, it's best to keep it as low as possible, and only increase it IF you experience nuisance throttling, and doing so still does not put you above a harmful thermal threshold.

Oh, thanks for the informative posts bardacuda, roboyto. That clears up the things about that power limit thing. I'll take note of that one. +

-

Had been overclocking the card, runs fine at heaven at 1170/1450 but gives a red screen at the firestrike portion of 3dMark until I lowered it at 1140/1450. As for the memory I can only get it to 1460 anything above will cause a "amd driver has stopped responding" at heaven, so didn't bother to test it on 3dMark. I didn't adjust anything besides those two, fan speed at 70% and the temps never got up to 60c. Power limit and voltage at defaults though.
post #5242 of 9745
Quote:
Originally Posted by Anonizer View Post

Yes, the 270x devil's clocks are pretty high! I'll be waiting the results of your 270x devil! :thumbsup: I hope you have a magical card there biggrin.gif The reviews says that it can't qualify for 80+ certification cause it doesn't have a PFC circuit, though the efficiency of the PSU is at 80~85%. Overclocks everywhere! Thanks! :thumbsup:
Oh, thanks for the informative posts bardacuda, roboyto. That clears up the things about that power limit thing. I'll take note of that one. +

-

Had been overclocking the card, runs fine at heaven at 1170/1450 but gives a red screen at the firestrike portion of 3dMark until I lowered it at 1140/1450. As for the memory I can only get it to 1460 anything above will cause a "amd driver has stopped responding" at heaven, so didn't bother to test it on 3dMark. I didn't adjust anything besides those two, fan speed at 70% and the temps never got up to 60c. Power limit and voltage at defaults though.

What type of memory do your cards have? Mine both have elpida and are basically unstable over 1400 tongue.gif I can get through Valley benchmark at 1500 (and even 1600 although with some pretty severe artifacting) although any increase over 1500 results in a loss in performance anyway, but for long-term stability (24/7 mining) 1500 doesn't work for me. When trying to find your max stable clocks, it's best to leave the memory at stock (normally 1400), and increase only the core (and voltage) till you find your max core, doing your stability tests after each change to verify. After you've done that, leave the core and voltage set to your newly found maximums, and then start increasing the memory, and stability testing after each increase until you've find your max mem clock. Then you're done.

With this method, when you find an instability, you'll know whether it's the core or the mem that's the problem and can adjust the right one.

Keep in mind you may have to increase your power limit too and it's perfectly fine...just make sure you keep your voltage and temps in check. If you notice a drop in performance (or even if you don't) when you're doing your stability testing, check AB, or GPU-Z sensor tab, to make sure your GPU usage is staying near 100% and your clocks haven't adjusted downward. If they have that means that you need to increase the power limit. Remember power limit is just that...the limit to how much power your GPU will allow itself to draw...and is just an extra safety measure. Putting it to +50% is basically saying "I don't want this safety feature, turn it off." Putting it to +20% is more like saying "I still want this safety feature to work, but what I consider safe is higher than what the manufacturer considers safe, because it is, because I'm being careful about my volts and temps anyway."
post #5243 of 9745
@Anonizer:
I'd love to see your Fire Strike benchmark when you"ve run it!! smile.gif
 
20€ LAN PC
(8 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX 8350 @ 4.6 GHz / 5.1GHz Boost asrock 990fx fatal1ty Pro Powercolor R9 280X Turboduo @ 1125 MHz Cosair 4x4GB @ 1333MHz 
Hard DriveHard DriveCoolingOS
PNY XLR8 120GB Seagate 1TB Fractal Kelvin S36 Windows 10 64bit 
PowerCaseAudio
Sea Sonic XP2 660W Cosair Carbide 300R (modded) Sennheiser HD429 
CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6400 Acer workstation MB Inno3D 9800GT Green 2x1GB no--name RAM 
Hard DriveOSPowerCase
80GB 5400RPM ex-laptop HDD Win XP :) no-name 650W PSU Modded - See thread 
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20€ LAN PC
(8 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX 8350 @ 4.6 GHz / 5.1GHz Boost asrock 990fx fatal1ty Pro Powercolor R9 280X Turboduo @ 1125 MHz Cosair 4x4GB @ 1333MHz 
Hard DriveHard DriveCoolingOS
PNY XLR8 120GB Seagate 1TB Fractal Kelvin S36 Windows 10 64bit 
PowerCaseAudio
Sea Sonic XP2 660W Cosair Carbide 300R (modded) Sennheiser HD429 
CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6400 Acer workstation MB Inno3D 9800GT Green 2x1GB no--name RAM 
Hard DriveOSPowerCase
80GB 5400RPM ex-laptop HDD Win XP :) no-name 650W PSU Modded - See thread 
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post #5244 of 9745
Quote:
Originally Posted by bardacuda View Post

What type of memory do your cards have? Mine both have elpida and are basically unstable over 1400 tongue.gif I can get through Valley benchmark at 1500 (and even 1600 although with some pretty severe artifacting) although any increase over 1500 results in a loss in performance anyway, but for long-term stability (24/7 mining) 1500 doesn't work for me. When trying to find your max stable clocks, it's best to leave the memory at stock (normally 1400), and increase only the core (and voltage) till you find your max core, doing your stability tests after each change to verify. After you've done that, leave the core and voltage set to your newly found maximums, and then start increasing the memory, and stability testing after each increase until you've find your max mem clock. Then you're done.

With this method, when you find an instability, you'll know whether it's the core or the mem that's the problem and can adjust the right one.

Keep in mind you may have to increase your power limit too and it's perfectly fine...just make sure you keep your voltage and temps in check. If you notice a drop in performance (or even if you don't) when you're doing your stability testing, check AB, or GPU-Z sensor tab, to make sure your GPU usage is staying near 100% and your clocks haven't adjusted downward. If they have that means that you need to increase the power limit. Remember power limit is just that...the limit to how much power your GPU will allow itself to draw...and is just an extra safety measure. Putting it to +50% is basically saying "I don't want this safety feature, turn it off." Putting it to +20% is more like saying "I still want this safety feature to work, but what I consider safe is higher than what the manufacturer considers safe, because it is, because I'm being careful about my volts and temps anyway."

I have Elpida too. biggrin.gif Yes, experienced it before with my 5670 can't even add 50+ on memory clock. lol. Been doing +10 mhz every run on core first after every round of successful stability tests after that proceeding on memory, though sometimes I want to skip it since it'll probably crash or when it passes it comes with performance loss. rolleyes.gif I'll probably try to fiddle with the voltage and power limits tomorrow, since I don't want to do any harm to the card cause of my inexperience since I still have no idea on what voltage should be the "safe" max and how much should I increase every try. smile.gif Thanks for the advise! thumb.gif I'll hope this will overclock well when voltage and power limit comes into play.
Quote:
Originally Posted by BruceB View Post

@Anonizer:
I'd love to see your Fire Strike benchmark when you"ve run it!! smile.gif
Firestrike with 14.3 and 1140/1450 (Click to show)

Will try to run again using 14.4!
Edited by Anonizer - 4/11/14 at 2:02pm
post #5245 of 9745
Quote:
Originally Posted by Anonizer View Post

Will try to run again using 14.4!

thumb.gif

That's a good score, I think an OC'd 270X might be the sweet spot for price/performance.
 
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AMD FX 8350 @ 4.6 GHz / 5.1GHz Boost asrock 990fx fatal1ty Pro Powercolor R9 280X Turboduo @ 1125 MHz Cosair 4x4GB @ 1333MHz 
Hard DriveHard DriveCoolingOS
PNY XLR8 120GB Seagate 1TB Fractal Kelvin S36 Windows 10 64bit 
PowerCaseAudio
Sea Sonic XP2 660W Cosair Carbide 300R (modded) Sennheiser HD429 
CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6400 Acer workstation MB Inno3D 9800GT Green 2x1GB no--name RAM 
Hard DriveOSPowerCase
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20€ LAN PC
(8 items)
 
 
CPUMotherboardGraphicsRAM
AMD FX 8350 @ 4.6 GHz / 5.1GHz Boost asrock 990fx fatal1ty Pro Powercolor R9 280X Turboduo @ 1125 MHz Cosair 4x4GB @ 1333MHz 
Hard DriveHard DriveCoolingOS
PNY XLR8 120GB Seagate 1TB Fractal Kelvin S36 Windows 10 64bit 
PowerCaseAudio
Sea Sonic XP2 660W Cosair Carbide 300R (modded) Sennheiser HD429 
CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6400 Acer workstation MB Inno3D 9800GT Green 2x1GB no--name RAM 
Hard DriveOSPowerCase
80GB 5400RPM ex-laptop HDD Win XP :) no-name 650W PSU Modded - See thread 
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post #5246 of 9745
Please add me: Shapphire Vapor X r9 270X --> 1250 - 1500

Between, is this result good for my OC?

post #5247 of 9745
Quote:
Originally Posted by Bruska View Post

Please add me: Shapphire Vapor X r9 270X --> 1250 - 1500

Between, is this result good for my OC?
Warning: Spoiler! (Click to show)

That's pretty much exactly where it should be with those clocks. If you tweak the texture filtering in catalyst you should get another fps or two.



You should do a bench for the valley thread biggrin.gif Right now I'm the only 270 (X or no) posted over there and it's kinda lonely. I only have ppl's old 7870 scores to compare it to tongue.gif

http://www.overclock.net/t/1360884/official-top-30-unigine-valley-benchmark-1-0/0_100
post #5248 of 9745
@Bruska: I think that's pretty good! 1250! thumb.gif What memory type do you have?
post #5249 of 9745
Quote:
Originally Posted by bardacuda View Post

That's pretty much exactly where it should be with those clocks. If you tweak the texture filtering in catalyst you should get another fps or two.



You should do a bench for the valley thread biggrin.gif Right now I'm the only 270 (X or no) posted over there and it's kinda lonely. I only have ppl's old 7870 scores to compare it to tongue.gif

http://www.overclock.net/t/1360884/official-top-30-unigine-valley-benchmark-1-0/0_100

Thanks for the tip, didn't know that. I'll change it and see what happens. It also affects in game performance?
Quote:
Originally Posted by Anonizer View Post

@Bruska: I think that's pretty good! 1250! thumb.gif What memory type do you have?

I have Hynix memory, but I set it only 1500 in benchmark because in games it crashes
post #5250 of 9745
Quote:
Originally Posted by Bruska View Post

Thanks for the tip, didn't know that. I'll change it and see what happens. It also affects in game performance?

No because you don't change the global settings. You have to specifically add valley.exe under the 3D Applications Settings tab in CCC, and then change the settings for that program only. The Valley thread I linked has all the details on how to do this in the orignial post, and also some tips for other things you can do to squeeze out the last bit of performance (setting the process to real-time, ending the explorer.exe and other non-essential processes in task manager, etc.) although these other tweaks do basically nothing for your score compared to the texture filtering tweaks.
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