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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 265

post #2641 of 3466
Thread Starter 
Originally Posted by eduardooaz View Post

Depend of your vram, i got samsung ones and they do 2100mhz without error, with 2200mhz they start showing errors still not a lot.
I don't pay attention. Sorry
you are right. It's a rx480, is not a imc problem.
post #2642 of 3466
Thread Starter 
Originally Posted by Eliovp View Post


Try this
Warning: Spoiler! (Click to show)

Done some quick untested edits here but should allow you to clock memory higher without errors smile.gif


Hi. I still get errors (only 2 after 2 runs of superposition 4K) @2125Mhz ~237GB/s. Scores are similar
Very good anyway!
post #2643 of 3466

The 22 22 timing at 906mv or even if I go to 950mv in wattman does 2010 mhz max for me which is fine in MEMTESTCL (using memtestcl -g 0 700 99999999
meaning 700 mb over and over till I stop it, 700mb helps me find errors faster than using a higher number)
If I try 1000mv, its less stable. So I wonder if this is some IMC timing limit around 2000 mhz???

Memtestcl is great, it finds errors before even hwinfo reports them! I attached it which includes memtest.cmd--- from cmd.exe prompt call it like this: memtest.cmd 700 for 700 mb for example and it will keep looping it

One cool thing, now when I change clock or volts it does not kill my oclmembench numbers anymore! So perhaps you were right eliovp, the ddr timings spec was wrong and the AMD driver would mess up when you change clock/mv!
NEVER MIND ITS HAPPENING AGAIN, ARGH AMD. Change one thing and oclmembench goes from 228 gb/s to 151 gb/s. Crapola.

Ok found a new fix for that issue. While running memtestcl loop, if I change the mem/vmem it doesn't kill the oclbench scores. Then I can end memtestcl and oclbench/benchmark games keep same performance. Odd, but I guess the opencl thread prevents the amd wattboy (lol) from messing up. memtestCL-1.00-windows.zip 764k .zip file
Edited by robnitro - 4/26/17 at 8:56pm
post #2644 of 3466
Copied my clocks/core voltage/memory straps to my original 480 bios to see memory stability and it's the same. I don't know why some people are getting more errors, try memtestcl to find the limit, the hwinfo number can be artificially zero depending on what the board reports (could be affected by the bios).
In my 7950 days , I had a bios that reported zero, yet had video corruption at the mhz and tight timings that gave errors on memtestcl, yet the original bios would show hwinfo errors at the same time as memtestcl. See what I mean with these benches that don't do checked calculations?
Occt for shader checking, memtestcl for vram.

Also ran superposition and 3dmark and they were identical: within 1% of the 580 bios with identical settings clocks memory etc. But yes, the sapphire 580 bios and some others are slower for me in those benches with same settings, so try different ones if you have a dual switch and can recover easily to find the optimal one for your 480 board.
Edited by robnitro - 4/26/17 at 9:43pm
post #2645 of 3466
I hear what you are saying about HWInfo reliability but my experience is a qualitative increase of errors with 480BIOS (zero error) to 580BIOS(500errors) and I am talking at the same very conservative memory clock of 2000Mhz

I am at work now but I will post both BIOS tonight so you can see the differences
post #2646 of 3466
I honestly believe that it's the adjusting of the 65282, 65283, 65284, 65285, 65286, 65287, 65288... best to leave them so they will determine what is the ideal voltage for said clock...

Too little voltage/ temperature (it's a sliding scale spectrum heat vs voltage) means errors, must have proper voltage for error free operation.
post #2647 of 3466
yep makes sense but as I mentioned earlier on this thread, I have increased memory voltage in wattman from 950mV which was set in the red dragon 580BIOS to 1150mV and errors are still there
post #2648 of 3466
First you wanna document your original ellesmere timings and compare to 580 bios... also the voltage / clock states set to your original Ellesmere and make the 580 bios look exactly the same as your original 480 bios... Check for errors... If none.. then slowly increase speeds etc.
post #2649 of 3466
yes thats the step by step I am planning to follow when time permits
post #2650 of 3466
Hey guys ! 17.4.4 is out !

Warning: Radeon Software Crimson ReLive Edition 17.4.4 Highlights (Click to show)

Support For

Warhammer 40,000: Dawn of War III™
Up to 7% performance improvement measured on Radeon RX 580 8GB graphics when compared to Radeon Software Crimson ReLive edition 17.4.3.(RS-131)

Fixed Issues

Some displays may experience corruption when using HDMI® scaling.
Battlefield™1 may experience stuttering in Multi GPU mode with 4K display resolutions when using DirectX®11.
HDR colors may appear incorrect in Mass Effect™: Andromeda on the latest Windows®10 Creators Edition update.
Some incorrect or unavailable feature descriptions may appear in Radeon Settings under the more/less help section.
Radeon RX 550 series graphics products may experience a hard hang when the user's system has not been rebooted for long periods of time.
Reboot prompt may be missing after Radeon Software installation on AMD XConnect™ technology system configurations.

Known Issues

HDTV displays may intermittently lose signal on some Radeon RX 480 series graphics products when connected over HDMI®.
Call of Duty™: Advanced Warfare may experience a game hang when performing a task switch.
Radeon WattMan may fail to apply settings on some Radeon R9 390 series graphics products.
Radeon Settings may crash on switching Windows® user after toggling AMD CrossFire™ technology mode.
A small amount of apps may still experience issues with Borderless Fullscreen mode and AMD FreeSync™ technology if other applications or game launchers are running on the primary screen in the background.
Counter-Strike™: Global Offensive and World of Warcraft™ may experience flickering or performance issues the first time the game is launched on a system boot with AMD FreeSync™ technology enabled. Workarounds include exiting and restarting the application or task switching (alt+tab) in and out of the game to fix the issue.

Known Issues for Radeon ReLive

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Radeon ReLive may exhibit corruption in recordings when capturing Microsoft Office applications.
Radeon ReLive may experience recording or streaming issues when task switching using ALT+TAB.

Package Contents

The Radeon Software Crimson ReLive Edition 17.4.4 installation package contains the following:

Radeon Software Crimson ReLive Edition 17.4.4 Driver Version 17.10.1731. (Windows Driver Store Version
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