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post #2751 of 4152
Quote:
Originally Posted by greytoad View Post

Be careful using other timings on your memory. The memory controller on my chip degraded after one heaven run at 1750 timings on 2000. Now with stock timings I'm way lower in stable memory oc.

Also, I hate the 16.9.2 driver. It throttles way more than previous driver versions and even when going much lower on my oc I just can't find stable. I ended up formatting and going back to 16.8.2 and a custom bios. (Using test mode.) Even my memory oc is stable now. 16.9.2 is not OC friendly to my card.

I'm also getting sick of the stuck memory scaling issue. I've found that it never happens if I take further precautions. I reboot before any clock changes and i never open wattman. I only use wattmon with vrm monitoring off. However it's so tempting to make a change directly after a bench run. I sitll goof up and don't do the reboot and leave hwinfo64 in the systray. Even sometimes just using wattman and the built in monitoring is enough to cause the issue. I'm annoyed at these driver issues. After every setting change I have to run Valley to make sure I don't have the stuck memory scaling issue. I can tell within the first 3 seconds by the fps counter if I'm having the issue. My valley scores when having the issue go down to like 55.5 rather than 58 at my new lower oc. The first few fps counts are in the 51 range when I"m having the issue 54 when not. Monitoring shows correct clocks so I'm not really sure it's a "stuck memory clock" issue.

GTAV is also really really annoying on some levels. It doesn't handle crashes well. After crashing in GTAV, the next time I run GTAV it invariably gets half my fps in game. It's also just happened for no reason. I still get a full 60 fps in menus so it's not a vsync issue. When it happens my gpu power usage is also cut way down. Zero throttling even at 1400mhz. Most of the time a cold boot would fix it. This last time, I had to run in windows 8 compatibility mode once, close down and run normally. The 2nd time I re-setup my graphics options and everything was back to normal. Took a lot of trial and error to find that solution. I was very close to uninstalling it and reinstalling it again. Luckily steam backup worked for me so I don't have to re-download it if I do uninstall and reinstall. I'm back to a stable oc on the 16.8.2 driver so I shouldn't have any more lockups. Really annoying though.

1800p without frame scaling or 1440p with frame scaling seem to be the sweet spots with fxaa and everything else turned all the way up. 4k with no aa or frame scaling and vsync off is OK with one card, but the fps is around 30 so it's not as smooth as I'd like. MSAA isn't worth it as it has a huge performance hit on this title.

My 2nd waterblock and the fc terminal shipped today. I'll get my 2nd card in later this week and I'll see how crossfire works. OC wont matter as much so maybe I'll try the next stable driver version that comes along

What is fhis stuck memory scaling issue?
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Silent But Deadly
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post #2752 of 4152
Hey guys got a new RX 480 being shoved into a small SFF prebuilt I got. Made a thread asking if how I have it now is ok, with no responses. Anyone mind taking a look and posting back here if im ok as is?

Thread

Got a xfx 480 gb and did not measure first, but im ok with treating it like an open bench, better for temps anyways.
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post #2753 of 4152
Quote:
Originally Posted by DsLiadz View Post

It was a nice deal you got there, i warn you, i have the same model on a 33-35ºC ambien temps and a NZXT S340 case with a push-pull front mounted radiator with 2 120mm exhaust fans and this card gets hot as **** mostly on Rise Of The Tomb Raider 75-80ºC on ultra full fan speed, other games are nice temps 65-70ºC(i still blame my thermal paste since i changed it, maybe the stock paste was a little better),i think Sapphire somehow made a poor cooler in this gen, and expect little to no overclock headroom, unless you live in a country with something like 20-25ºC and have a good airflow on your case, also i replaced the acrylic window on my side panel with some mosquito mesh for more breathing room in my case, all in all is a good card if you run it stock boost and almost full speed fans, noise is not an issue while gaming at least for me biggrin.gif Good luck man and enjoy it.
Thanks, well I live in Finland and we have quite cold to mild weather here biggrin.gif
But as the others mentioned I picked this card because of its price, size and the look. Not to mention it does have a good PCB design, so in case of issue with the cooler I might change it to custom one.
My main usage wont be gaming however, I'm doing lots of video editing and I need a decent video card to lift the heavy load from CPU.

on the side note: Has anyone tried any of coollaboratory products on Nitro to make it run cooler?
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post #2754 of 4152
Quote:
Originally Posted by Melcar View Post

But the card is usually the same price or a few dollars cheaper than most of the competition (often with better coolers). And why would people not buy it if it had a better cooler and a bit more expensive? People are buying other brand cards too, no?
Don't get me wrong. The Nitro is a really good card. It has one of the better custom PCBs, the highest stable stock overclock, and with pro stylish looks. The cooler is adequate but they could have done better considering their previous offerings with the Nitro moniker.

As the famous expression goes, you get what you pay for. Obviously people purchasing that card are purposefully looking for a card in that price range. If the card was more expensive, they would look at something else.

At least people can look for alternate coolers if they decide to at a later date, and if they can find one that will fit.
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post #2755 of 4152
Quote:
Originally Posted by homestyle View Post

What is fhis stuck memory scaling issue?

There was an issue several users were experiencing where performance wasn't scaling with memory overclocks. For me I'd have to DDU once the issue occurred to get the performance scaling back. I haven't had it in a while. I haven't tested for it though. My current card gets almost no memory overclock anyway. I have a 2nd and a third card I'll be putting in soon. Maybe I'll test again then.
post #2756 of 4152
cold boot vs reboot different performance.

Has anybody experienced lower performance from a cold boot, and then rebooting and getting higher fps?
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post #2757 of 4152
Quote:
Originally Posted by homestyle View Post

cold boot vs reboot different performance.

Has anybody experienced lower performance from a cold boot, and then rebooting and getting higher fps?

On occasion my performance would be cut in half and only a cold boot would bring it back. It hasn't happened to me since i settled on a clock rate and quit messing with it while benches/monitoring tools were open. Or it could be that the latest drivers solved it for me. I don't know. It hasn't happened in a month or two though.

I do suggest not altering clocks while hwinfo64 or gpuz is open. Normally I'd lose performance on my memory overclock after performance was back to "normal" and also have to do a DDU to get the last 2.5% of my performance back (3 or 4 fps). There have also been reports of crossfire being stuck at 50% utilization until a cold boot. I haven't seen that yet so I didn't track the issue.

I have another rx480 8GB that's failing. The VRMs spike the voltage once in a while. One of them is probably going to go out, fry and then send 12 volts directly to my GPU. It happens less often if I undervolt and under-clock so I haven't been messing with settings and was just trying to get my card to limp along until my replacements got here.

At the default voltage for my card, a stupid 1.15 volts, it will spike once an hour or so to 1.3 or 1.45 for a split second. My VRMs are underwater at 39 degrees Celsius under load. It's not overheating. At an undervolt of 1.015v, 35 degrees Celsius and a clock rate of 1215mhz it will only spike once ever 4 hours or so under load. When the issue started it only did it once every 12 hours. It's getting progressively worse. So I'm not messing with overclocking until ASUS gives me a replacement or until it dies.

I just got 2nd card from XFS that's also a 8GB 480 reference card as well. It doesn't do that. Neither did my reference Sapphire rx480, except once when the vrms were overheating while running 3dmark power virus loop on air while overclocking and over-volting. I killed my Sapphire with a water leak, or with thermal death, not sure which, and they are sending me a Nitro 8GB I can't use my block on. Is was that or wait an undetermined amount of time.

I'm 99% sure the ASUS card is going to go out. I put it back to stock and took screen shots of HWINFO64 for ASUS support. We'll see what ASUS says. Since it hasn't actually failed yet, they'll probably not do anything. Shame. If they replace it now they could replace the vrms and salvage the card or at least pull the gpu off. After the vrms fail the gpu will be toast.
post #2758 of 4152
Daamn, this thread exploded! One day off the PC and now I have to read through War and Peace to get up to date biggrin.gif
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post #2759 of 4152
Quote:
Originally Posted by Melcar View Post

why would people not buy it if it had a better cooler and a bit more expensive? People are buying other brand cards too, no?

There's your answer - the beefy side of the market is already populated. I personally, and many more people, expect baseline AMD experience from Sapphire. When I buy a GPU, I want it as close to reference as possible, that is why I immediately to to Sapphire. Only in case there is something wrong with their card, or I'm buying for a friend or family, I consider a different brand. Had the Sapphire card been more expensive though, I'd probably buy an MSI or Asus.
Quote:
Originally Posted by homestyle View Post

cold boot vs reboot different performance.

Has anybody experienced lower performance from a cold boot, and then rebooting and getting higher fps?

No, but I see my fan settings stuck at default after wake-up from sleep. Not sure if in any way related.
Quote:
Originally Posted by greytoad View Post

On occasion my performance would be cut in half and only a cold boot would bring it back. It hasn't happened to me since i settled on a clock rate and quit messing with it while benches/monitoring tools were open. Or it could be that the latest drivers solved it for me. I don't know. It hasn't happened in a month or two though.

I do suggest not altering clocks while hwinfo64 or gpuz is open. Normally I'd lose performance on my memory overclock after performance was back to "normal" and also have to do a DDU to get the last 2.5% of my performance back (3 or 4 fps). There have also been reports of crossfire being stuck at 50% utilization until a cold boot. I haven't seen that yet so I didn't track the issue.

I have another rx480 8GB that's failing. The VRMs spike the voltage once in a while. One of them is probably going to go out, fry and then send 12 volts directly to my GPU. It happens less often if I undervolt and under-clock so I haven't been messing with settings and was just trying to get my card to limp along until my replacements got here.

At the default voltage for my card, a stupid 1.15 volts, it will spike once an hour or so to 1.3 or 1.45 for a split second. My VRMs are underwater at 39 degrees Celsius under load. It's not overheating. At an undervolt of 1.015v, 35 degrees Celsius and a clock rate of 1215mhz it will only spike once ever 4 hours or so under load. When the issue started it only did it once every 12 hours. It's getting progressively worse. So I'm not messing with overclocking until ASUS gives me a replacement or until it dies.

I just got 2nd card from XFS that's also a 8GB 480 reference card as well. It doesn't do that. Neither did my reference Sapphire rx480, except once when the vrms were overheating while running 3dmark power virus loop on air while overclocking and over-volting. I killed my Sapphire with a water leak, or with thermal death, not sure which, and they are sending me a Nitro 8GB I can't use my block on. Is was that or wait an undetermined amount of time.

I'm 99% sure the ASUS card is going to go out. I put it back to stock and took screen shots of HWINFO64 for ASUS support. We'll see what ASUS says. Since it hasn't actually failed yet, they'll probably not do anything. Shame. If they replace it now they could replace the vrms and salvage the card or at least pull the gpu off. After the vrms fail the gpu will be toast.

Doesn't WC void the warranty? Is it possible you have poor contact on one of the MOSFETS and only it is overheating?
Quote:
Originally Posted by Tisser12 View Post

my card has only hit 80C a handful of times as a MAX reached, and my max fan useage has never been above 88%.

Oh, at first I thought "ah, that's a bit high", but then I remembered you're clocked higher than me and pumping more volts smile.gif How are your fans set in WattMan? Do your fans reset to default rpm after you wake from sleep? I hate having to reapply min and max fan speed after every wake...
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My Rig
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Ex-wife's Rig
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Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
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2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
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Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
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Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
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post #2760 of 4152
Thanks for the feedback peeps on my thread. Was really worried about this GPU but looks like it should be fine. Now time to punish it with OC. thumb.gif
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