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post #541 of 4151
Quote:
Originally Posted by KarathKasun View Post

That is not a card problem, it is a software problem. Trust me.

You should disable any 3rd party tweaking software and start with wattman. 3rd party tools are broken FTMP.

I installed a fresh install of the latest Windows 10, all updates, latest drivers, and so on, on a spare drive to test... yet the problem remains. Others with my exact card have no issues.

If GPU-z et. al. didn't recognize the memory clocks changing, then I'd suspect a software problem nonetheless, but the card is reporting back the new memory clocks to every program - they just aren't actually changing.

It could be a stuck clock generator, in which case the card may not even be running at 1750Mhz, which is my real concern.

I'm going to try Windows 7 and see what happens. I have a few hours to kill...
post #542 of 4151
EMBD breaks my memory clocks on an RX 470. Minimum memory clock with it active is 2000, which will never be stable.
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post #543 of 4151
Awesomeguy10578 - 1st time was on accident. the second time was proving a point. It was a small small burn. Bad smell really. Just don't run 3dmark firestrike ultra stress test at higher voltages and you'll be fine. Could also be my board. I had just replaced it for a misdiagnosed problem and maybe the replacement had issues. It's not worth putting my non-burned one in right now as everything is working.

I just re-tuned my cpu overclock for aida64 extreme fpu test stability rather than prime95 small stability. That allowed me to drop my voltage enough to up my ucore to 42. cpu is X50 at 1.453 now down from 1.465. raising my cache to 42 gave me almost as much of a boost in heaven as 5.1 vs 5.0 Ghz. You wouldn't think a 5% improvement in cache speed would have much effect but...

settings: 1435 @ 1.231v 2220 @1050








Unigine Valley Benchmark 1.0







FPS:
60.1
Score:
2515
Min FPS:
30.9
Max FPS:
115.4

System






Platform:
Windows 8 (build 9200) 64bit
CPU model:
Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz (3998MHz) x4
GPU model:
Radeon (TM) RX 480 Graphics 16.200.1035.1001 (4095MB) x1

Settings






Render:
Direct3D11
Mode:
1920x1080 8xAA fullscreen
Preset
Extreme HD

Powered by UNIGINE Engine

post #544 of 4151
KarathKasun - I think it was written for the reference rx480 It's specific to it's vrm controller I think.
post #545 of 4151
Quote:
Originally Posted by greytoad View Post

KarathKasun - I think it was written for the reference rx480 It's specific to it's vrm controller I think.

I have the Sapphire Platinum RX 470. Its an RX 480 minus two VRM phases and with native 4gb VRAM, same exact PCB. The tool works fine minus the minimum memory clock being too high.

Been playing around with the VRM tool since EMBD is semi broken for my needs. Can push 1400 @ 1.2v on the reference cooler quite easily. Does not help scores over 1350 though, pretty sure it wont scale much better without faster VRAM. VRAM on my card tops out at ~1900.

Just broke my personal record on Valley, 3516 (1350/1900, 1.175v1080p no AA). Going to do a few passes to see if it was a fluke or not, 1400/1900 was scoring in the 3450 ballpark.

**confirmed above scores

Unigine Valley Benchmark 1.0
FPS: 84.0
Score: 3513
Min FPS: 37.5
Max FPS: 154.1

***and improved upon them (1350/1925)...

Unigine Valley Benchmark 1.0
FPS: 85.9
Score: 3596
Min FPS: 37.6
Max FPS: 156.8

With 8x AA...
Unigine Valley Benchmark 1.0
FPS: 51.1
Score: 2139
Min FPS: 26.4
Max FPS: 96.5
Edited by KarathKasun - 8/13/16 at 9:03pm
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post #546 of 4151
Quote:
Originally Posted by KarathKasun View Post

EMBD breaks my memory clocks on an RX 470. Minimum memory clock with it active is 2000, which will never be stable.

Well, things finally revealed themselves for what they were - a defective card.

Was kind of strange as it was so stable until it wasn't - the only symptom I had was no improvement in performance with changing memory clocks, LOL!

Anyway, I was just sitting at the desktop, browsing, and my screens went blank and the system froze. Hit reset, and kept waiting for the monitors to come up, which seemed to be talking a bit longer than usual, then I hear the Windows startup sound... both monitors still blank. I shut it down with the keyboard shortcuts, turned it back on, and it came back up like normal. Ran a few tests, all seemed fine.

So I moved it to my wife's computer, installed Windows 7 on a spare drive, setup the drivers, checked for the memory scaling - same issue still present .. on a radically different system. Then the system froze, screen went black and shut off. Reset it, came back up, things were still at their defaults, so I opened Radeon Settings and it did it again.

What's funny, is that I had this happen the first time I installed it - screens didn't come up on first boot - but turning it off and back on fixed it and didn't come back until now.

So, sadly, it's back in its original packaging and I'm starting the RMA with NewEgg.
post #547 of 4151
That has to be the oddest mode of failure I have ever seen.
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post #548 of 4151
Finally find the fix for the Wattman bug i have with the voltages.-

Like i say a few posts ago, when i setup any new mem frecuency's in GPU Tweak II, the GPU voltage drop, like ignoring the preset in GPU Tweak II and go back to default (Wattman voltage).-

To fix it, I setup in Wattman voltage to "Manual" and put the last 4 stages to the max capable voltage in this case 1175, press apply, and close, that all, now i can play with GPU Tweak II move mem freq, GPU freq, GPU voltage, and don't have any problem with Wattman, and if you want, can adjust the voltage of the Mem in Wattman and dont produce any problem.-



Try only setting the stage 7 and still have problem then the 6, then the 5 and finally with the 4 stage set at max voltage capable fix the problem, the good thing is in this condition you still have all the stages, and low voltage at first stages (web-browsing, video, desktop, etc).-

---

And today discover most of my video glitch was the memory freq, so i down the memory clock to 2155 mhz, with stock voltage, and put in 1430 mhz my gpu this is the most stable value i can get more than 1430 mhz need a lot of tweak, and with this setup of gpu and mem, can drop the voltage to 1.24 now the temp of the VRM its sustancial more lower.-
post #549 of 4151
Quote:
Originally Posted by KarathKasun View Post

That has to be the oddest mode of failure I have ever seen.

Same here, and I have 20 years as a tech behind me.

I'm not sure if the problems are related, but I'm thinking they probably are. If the clock generation or logic is messed up for the memory bus, then it might randomly die out or come to life and set different frequencies. The problem never happened while gaming or under stress, just while doing nothing - or when coming out of a load and idling at the desktop.

Unlike during gaming, these are times when the memory clock is changed frequently - it's possible that this was enough to drive the circuitry into a failure state.

It's frustrating because I really liked the card - it was quiet, sexy, got a great deal on it, was efficient, could handle super-nice low voltages, and was able to clock quite nicely. May not get so lucky on a second draw on the lottery. Still, I decided my next attempt will be with the same card - in the RX 480 4GB variant. It's just $20 more and should be back in stock in a few days given its stock history, so it's really a no-brainer.

Glad I got distracted and didn't list my R9 290 on eBay as planned.

UPDATE: RMA'd, and pre-ordered an RX 480 Nitro+ 4GB for a grand total of just $9 more because I don't have to pay taxes with ShopBLT, but do with NewEgg.
Edited by looncraz - 8/14/16 at 8:37am
post #550 of 4151
1260MHz with def. voltage and +50PL = 102temp on VRM
1380MHz with 1.093v and +50PL = 115temp on VRM


Maybe temp limit of VRM make card downclocking to 300MHz? mad.gifmad.gif
Why Sapphire why..
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